Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces.
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm at att dot net

Yo Bump,

Are they PMA'd, STC'd or TSO'd? Because my local IA/FAA FSDO/CFI says
I can't install it unless it has the Good Gliderkeeping Seal of
Approval! What about dampening, I hate it when it vibrates back and
forth at 150hZ at the lower speeds.

;-)




On Jun 4, 1:45*pm, "bumper" > wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces..
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm * * at * *att * *dot * *net

On Jun 4, 1:45*pm, "bumper" > wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces..
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm * * at * *att * *dot * *net

Pictures of the new model please??

On Jun 4, 4:45*pm, "bumper" > wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces..
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm * * at * *att * *dot * *net

Great. Just great. Planned obsolescence. Clearly, this is just
another ploy by Bumper to get rich on the backs of poor glider folk.
When will it all end?

Erik Mann
LS8/18 P3 fully equipped with a MKIII (or is it a MKII) yawstring AND
the Quiet Vent MKII rev. 3.1

On Jun 4, 2:45*pm, "bumper" > wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces..
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm * * at * *att * *dot * *net

I would buy the new product but I am still liking my 3 year old MKII
yaw string too much to want to remove it. :)

Bruno

"Uncle Fuzzy" > wrote in message
...

Pictures of the new model please??

Pictures of the "old" MKIII are at:

http://s674.photobucket.com/albums/vv107/bumperm/

Sorry I don't have any pictures of the new MKIV yet, however they look
almost identical to the MKIII.

bumper

"Papa3" > wrote in message
...

Great. Just great. Planned obsolescence. Clearly, this is just
another ploy by Bumper to get rich on the backs of poor glider folk.
When will it all end?

Erik Mann
LS8/18 P3 fully equipped with a MKIII (or is it a MKII) yawstring AND
the Quiet Vent MKII rev. 3.1

busted

Now how am I gonna afford one of those new ASH31Mi's

bumper
zz
(old, outdated, obsolete ASH26E)

> wrote in message
...
Yo Bump,

Are they PMA'd, STC'd or TSO'd? Because my local IA/FAA FSDO/CFI says
I can't install it unless it has the Good Gliderkeeping Seal of
Approval! What about dampening, I hate it when it vibrates back and
forth at 150hZ at the lower speeds.

;-)


Not TSO'd, PMA'd, or STC'd. They are, however, J.C.Whitney, NAPA, and
McMaster-Carr approved, which is just as good, maybe better (Orville and
Wilbur didn't give a rat's _ _ _ about acronym groups). But, the MKIV does
come with the coveted Sham-Wow, Slap-Chop, Energy Star seal of approval :)

Damping is excellent at tested speeds below .21 Mach. Much above that, the
pilot may have other issues with which to concern himself, rather than his
nice looking yaw string.

bumper

"Bruno" > wrote in message
...

I would buy the new product but I am still liking my 3 year old MKII
yaw string too much to want to remove it. :)

Bruno

Bruno,

A 3 year old MKII is suspect and may no longer be your trusted friend. It is
likely to suffer from phase reversal and thus may have lost most of its
ability to reliably locate thermals. To test for this problem, sprinkle some
water on it and see if it smells like an old sheep. You should order a new
MKIV with synthetic yarn immediately - - it will never smell like old sheep.
(g)

bumper
zz
Minden

Bumper,

Thanks for making me laugh out loud!!! Funny!

Paul Remde

"bumper" > wrote in message
...
>
> "Bruno" > wrote in message
> ...
>
> I would buy the new product but I am still liking my 3 year old MKII
> yaw string too much to want to remove it. :)
>
> Bruno
>
> Bruno,
>
> A 3 year old MKII is suspect and may no longer be your trusted friend. It
> is likely to suffer from phase reversal and thus may have lost most of its
> ability to reliably locate thermals. To test for this problem, sprinkle
> some water on it and see if it smells like an old sheep. You should order
> a new MKIV with synthetic yarn immediately - - it will never smell like
> old sheep. (g)
>
> bumper
> zz
> Minden
>
>
>

On Jun 5, 8:24*am, "bumper" > wrote:
> "Bruno" > wrote in message
>
> ...
>
> I would buy the new product but I am still liking my 3 year old MKII
> yaw string too much to want to remove it. *:)
>
> Bruno
>
> Bruno,
>
> A 3 year old MKII is suspect and may no longer be your trusted friend. It is
> likely to suffer from phase reversal and thus may have lost most of its
> ability to reliably locate thermals. To test for this problem, sprinkle some
> water on it and see if it smells like an old sheep. You should order a new
> MKIV with synthetic yarn immediately - - it will never smell like old sheep.
> (g)
>
> bumper
> zz
> Minden

Why to you hate Sheep?

Jim "Flies with Sheep"

On Jun 4, 9:05*pm, Papa3 > wrote:
> On Jun 4, 4:45*pm, "bumper" > wrote:
>
>
>
>
>
> > Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> > string improves again, with the MKIV replacing the MKIII. Front line units
> > are already being equipped with the IV.
>
> > Normally I throw away old stock if I've made an improvement, and start
> > selling the new, better one right away (probably not smart from a P/L
> > perspective). This time I've decided to sell the limited number of MKIII's
> > remaining at clearance price of $6 USD, 40% off the regular price of $10.

"Tim Taylor" > wrote in message
...
On Jun 4, 9:05 pm, Papa3 > wrote:
> On Jun 4, 4:45 pm, "bumper" > wrote:

Planned obsolescence! I didn't even get my MKIII installed and the
MKIV came out. I guess I will be putting my obsolete synthetic
turquoise yaw string on this weekend. At least it doesn't smell like
sheep

Tim


Tim,

"We reserve the right to make product improvements and/or change prices at
any time".

But, we also care deeply about customer satisfaction. If you return your
MKIII in new condition, it will be cheerfully replaced with a brand new
shiny MKIV that doesn't smell like old sheep . . . and all at no cost.

Note: I don't hate sheep . . . I live in NV where the sheep look sheepish
and the sheepher . . . er, we won't go there.

bumper

bumper wrote:
> "Tim Taylor" > wrote in message
> ...
> On Jun 4, 9:05 pm, Papa3 > wrote:
>> On Jun 4, 4:45 pm, "bumper" > wrote:
>
> Planned obsolescence! I didn't even get my MKIII installed and the
> MKIV came out. I guess I will be putting my obsolete synthetic
> turquoise yaw string on this weekend. At least it doesn't smell like
> sheep
>
> Tim
>
>
> Tim,
>
> "We reserve the right to make product improvements and/or change prices at
> any time".
>
> But, we also care deeply about customer satisfaction. If you return your
> MKIII in new condition, it will be cheerfully replaced with a brand new
> shiny MKIV that doesn't smell like old sheep . . . and all at no cost.
>
> Note: I don't hate sheep . . . I live in NV where the sheep look sheepish
> and the sheepher . . . er, we won't go there.
>
> bumper
>
And the sheepherders carry Velcro gloves.

On Jun 5, 2:05*pm, Ed Winchester > wrote:
> bumper wrote:
> > "Tim Taylor" > wrote in message
> ....
> > On Jun 4, 9:05 pm, Papa3 > wrote:
> >> On Jun 4, 4:45 pm, "bumper" > wrote:
>
> > Planned obsolescence! *I didn't even get my MKIII installed and the
> > MKIV came out. *I guess I will be putting my obsolete synthetic
> > turquoise yaw string on this weekend. *At least it doesn't smell like
> > sheep
>
> > Tim
>
> > Tim,
>
> > "We reserve the right to make product improvements and/or change prices at
> > any time".
>
> > But, we also care deeply about customer satisfaction. If you return your
> > MKIII in new condition, it will be cheerfully replaced with a brand new
> > shiny MKIV that doesn't smell like old sheep . . . and all at no cost.
>
> > Note: I don't hate sheep . . . I live in NV where the sheep look sheepish
> > and the sheepher . . . er, we won't go there.
>
> > bumper
>
> And the sheepherders carry Velcro gloves.- Hide quoted text -
>
> - Show quoted text -

And I always thought that it was Montana, where the Men were men, and
the sheep were scared :-)

Pete

I had no idea... Perhaps I should have marketed my "minimalist yaw
strings" I installed on my Lark a few years ago.

On Jun 5, 7:59*pm, wrote:
> I had no idea... *Perhaps I should have marketed my "minimalist yaw
> strings" I installed on my Lark a few years ago.

you know what they say "the early bird gets the yarn"!

Brad

bumper wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
Damn! I wish I had known...I just had mine rebuilt.

Paul
ZZ









> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces.
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm at att dot net
>
>
>
>

Bumper,
Why can't we buy these through Wings and wheels or cumulus soaring
web sites? It would save you a ton of work.

"Dr. John Ackerson" > wrote in message
...
> Bumper,
> Why can't we buy these through Wings and wheels or cumulus soaring
> web sites? It would save you a ton of work.

I think the reason is that there's not enough mark up to cover their
expenses to deal with it - - they need to make a reasonable profit. The
pricing it basically at wholesale now, so they would have to sell for
substantially more than $10 USD to make it work for retail sales. I would
raise prices, but even as nice as the MKIV is, there's probably a price
point beyond which a yaw string won't sell (g).

There are a couple of glider businesses that carry them as a service to
their walk-in customers, such as Williams Soaring in CA and SoaringNV at
Minden. They sell them at their cost, so it's probably not reasonable to ask
them to incur the expense of shipping them, given that I ship them for free
(to USA, and for just $1internationally).

Although I have a number of jigs and fixtures to help speed and make more
accurate the fabrication process, it's still a handmade item with over 10
minutes needed to make each MKIV. To automate further would be hard to
justify given the size of the potential market. Of course I could farm out
the labor to lower my investment in time, but I haven't done that yet. I
have also not tried advertising in Soaring etc. instead relying on word of
mouth and ras etc.

This is a hobby for me and a way to share one of my inventions rather than a
business.

And finally, thanks for asking! Every time there's a post about the MKIV or
Quite Vent kit here on ras, it generates a whole bunch of orders - - gorilla
advertising (g).

bumper
zz
Minden, NV

Da Bump,

Where oh where do we order these things? Give me a surface address or
web site to send the coin. Google doesn't seem to be able to locate a
web site or nothin' on your great device. Where are the instructions
found?

Oh the humanity!

- John "Yaw-less" DeRosa

On Mon, 08 Jun 2009 16:20:58 +0000, bumper wrote:

> And finally, thanks for asking! Every time there's a post about the MKIV
> or Quite Vent kit here on ras, it generates a whole bunch of orders - -
> gorilla advertising (g).
>
I installed mine getting on for a month ago and finally got to fly with
it yesterday.

It was just as well that I replaced the old string. It was about ready to
fall off: it was on the glider when I bought it and had been there who
knows how long plus three years. In consequence the sticker's adhesive
had become almost non-adhesive. Bumper's installation instructions worked
well. I made the paper template at home and used some kite line as a
guide. I attached the guide line to the fin and attached the template to
my canopy with masking tape, so the installation became a simple one man
job.

The result works well and looks great. Its certainly nice not having an
opaque string anchor in front of me.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

On Thursday, June 4, 2009 at 2:45:29 PM UTC-6, bumper wrote:
> Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
> string improves again, with the MKIV replacing the MKIII. Front line units
> are already being equipped with the IV.
>
> Normally I throw away old stock if I've made an improvement, and start
> selling the new, better one right away (probably not smart from a P/L
> perspective). This time I've decided to sell the limited number of MKIII's
> remaining at clearance price of $6 USD, 40% off the regular price of $10.
> Contact me by email for availability - - first come etc.
>
> The new MKIV's clear base looks almost identical to the MKIII it replaces.
> The base is now made from a softer plastic to better conform to the canopy
> curve. The base also has a thermoformed yarn channel that, along with the
> new plastics better adhesion properties, should eliminate the cosmetic
> problem of bubbles sometimes forming in the base laminate.
>
> The new MKIV base required different tooling and assembly processes, and is
> more tedious to assemble . . . still, price remains $10 USD (includes
> domestic shipping). Available in natural wool (red, royal blue, light blue,
> yellow) or synthetic yarn (previous colors plus white and turquoise).
>
> bumper
> zz
> Minden NV
> bumperm at att dot net

Still for sale. Contact me Thanks Geoff

Planned obsolescence, years ago I ordered and then waited two years to get a shinny new Ventus 2C. Imagine my delight when six weeks after taking delivery SH announced the new Ventus 2CX.

Do you take Bitcoin?

On Monday, June 8, 2009 at 9:20:58 AM UTC-7, bumper wrote:
> "Dr. John Ackerson" > wrote in message
> ...
> > Bumper,
> > Why can't we buy these through Wings and wheels or cumulus soaring
> > web sites? It would save you a ton of work.
>
> I think the reason is that there's not enough mark up to cover their
> expenses to deal with it - - they need to make a reasonable profit. The
> pricing it basically at wholesale now, so they would have to sell for
> substantially more than $10 USD to make it work for retail sales. I would
> raise prices, but even as nice as the MKIV is, there's probably a price
> point beyond which a yaw string won't sell (g).

Uh, are you selling a g-string?
>
> There are a couple of glider businesses that carry them as a service to
> their walk-in customers, such as Williams Soaring in CA and SoaringNV at
> Minden. They sell them at their cost, so it's probably not reasonable to ask
> them to incur the expense of shipping them, given that I ship them for free
> (to USA, and for just $1internationally).
>
> Although I have a number of jigs and fixtures to help speed and make more
> accurate the fabrication process, it's still a handmade item with over 10
> minutes needed to make each MKIV. To automate further would be hard to
> justify given the size of the potential market. Of course I could farm out
> the labor to lower my investment in time, but I haven't done that yet. I
> have also not tried advertising in Soaring etc. instead relying on word of
> mouth and ras etc.
>
> This is a hobby for me and a way to share one of my inventions rather than a
> business.
>
> And finally, thanks for asking! Every time there's a post about the MKIV or
> Quite Vent kit here on ras, it generates a whole bunch of orders - - gorilla
> advertising (g).
>
> bumper
> zz
> Minden, NV

On my recent visit to Minden I purchased both the MKIV yaw string and
the Quiet Vent. I'm extremely pleased with both.

Hadn't heard about any g-string. Is that for aerobatic pilots? What
prevents it from drooping? 8-)

On 11/24/2015 7:12 PM, SoaringXCellence wrote:
> On Monday, June 8, 2009 at 9:20:58 AM UTC-7, bumper wrote:
>> "Dr. John Ackerson" > wrote in message
>> ...
>>> Bumper,
>>> Why can't we buy these through Wings and wheels or cumulus soaring
>>> web sites? It would save you a ton of work.
>> I think the reason is that there's not enough mark up to cover their
>> expenses to deal with it - - they need to make a reasonable profit. The
>> pricing it basically at wholesale now, so they would have to sell for
>> substantially more than $10 USD to make it work for retail sales. I would
>> raise prices, but even as nice as the MKIV is, there's probably a price
>> point beyond which a yaw string won't sell (g).
> Uh, are you selling a g-string?
>> There are a couple of glider businesses that carry them as a service to
>> their walk-in customers, such as Williams Soaring in CA and SoaringNV at
>> Minden. They sell them at their cost, so it's probably not reasonable to ask
>> them to incur the expense of shipping them, given that I ship them for free
>> (to USA, and for just $1internationally).
>>
>> Although I have a number of jigs and fixtures to help speed and make more
>> accurate the fabrication process, it's still a handmade item with over 10
>> minutes needed to make each MKIV. To automate further would be hard to
>> justify given the size of the potential market. Of course I could farm out
>> the labor to lower my investment in time, but I haven't done that yet. I
>> have also not tried advertising in Soaring etc. instead relying on word of
>> mouth and ras etc.
>>
>> This is a hobby for me and a way to share one of my inventions rather than a
>> business.
>>
>> And finally, thanks for asking! Every time there's a post about the MKIV or
>> Quite Vent kit here on ras, it generates a whole bunch of orders - - gorilla
>> advertising (g).
>>
>> bumper
>> zz
>> Minden, NV

--
Dan, 5J

On Wednesday, November 25, 2015 at 7:32:35 AM UTC-8, Dan Marotta wrote:
> On my recent visit to Minden I purchased both the MKIV yaw string
> and the Quiet Vent.* I'm extremely pleased with both.
>
>
>
> Hadn't heard about any g-string.* Is that for aerobatic pilots?*
> What prevents it from drooping?
> 8-)
> --
>
> Dan, 5J

Dan,

There's been incredible interest in the MK1 Mod-a G-string. It's been in the works for years. But lots of bugs and issues. Wife won't let me hire the models needed to get the kinks sorted out . . . trying to push this further would doubtless be a dead end for me.

This thread was from '09!

MKIII . . . ah, the memories :c), been replaced by the MKIV several years back, and the MKIV has had improvements over it's run and should be at least a MKV or MKVI by now. But then that would mean recertification and all the associated costs, tests for flight into known icing, firing frozen chickens at it, that sort of thing.

I seldom get orders direct anymore (except from the wife), MKIV's are mostly sold by the major on-line soaring suppliers; Cumulus Soaring, Craggy Aero, and Wings & Wheels. I've finally hit the big time but will still need crowd funding for a suitable corporate jet. Haven't decided if it should be a sustainer or a self launch.

bumper

On Wednesday, November 25, 2015 at 11:39:50 AM UTC-6, bumper wrote:
>
> There's been incredible interest in the MK1 Mod-a G-string. It's been in the works for years. But lots of bugs and issues. Wife won't let me hire the models needed to get the kinks sorted out . . . trying to push this further would doubtless be a dead end for me.

Ah yes, buggy g-strings; reminds me of my days in the PI...

Kirk
66

Bumper,

I looked at a Stemme this morning and it had what I suppose was a MkIII
yaw string. Funny thing, though - the pointy end of the mount was
facing aft. I guess the installer didn't get the instructions.

On 11/25/2015 10:39 AM, bumper wrote:
> On Wednesday, November 25, 2015 at 7:32:35 AM UTC-8, Dan Marotta wrote:
>> On my recent visit to Minden I purchased both the MKIV yaw string
>> and the Quiet Vent. I'm extremely pleased with both.
>>
>>
>>
>> Hadn't heard about any g-string. Is that for aerobatic pilots?
>> What prevents it from drooping?
>> 8-)
>> --
>>
>> Dan, 5J
> Dan,
>
> There's been incredible interest in the MK1 Mod-a G-string. It's been in the works for years. But lots of bugs and issues. Wife won't let me hire the models needed to get the kinks sorted out . . . trying to push this further would doubtless be a dead end for me.
>
> This thread was from '09!
>
> MKIII . . . ah, the memories :c), been replaced by the MKIV several years back, and the MKIV has had improvements over it's run and should be at least a MKV or MKVI by now. But then that would mean recertification and all the associated costs, tests for flight into known icing, firing frozen chickens at it, that sort of thing.
>
> I seldom get orders direct anymore (except from the wife), MKIV's are mostly sold by the major on-line soaring suppliers; Cumulus Soaring, Craggy Aero, and Wings & Wheels. I've finally hit the big time but will still need crowd funding for a suitable corporate jet. Haven't decided if it should be a sustainer or a self launch.
>
> bumper
>
>
>

--
Dan, 5J

On Wednesday, November 25, 2015 at 3:28:37 PM UTC-8, Dan Marotta wrote:
> Bumper,
>
> I looked at a Stemme this morning and it had what I suppose was a
> MkIII yaw string.* Funny thing, though - the pointy end of the mount
> was facing aft.* I guess the installer didn't get the instructions.

> Dan, 5J

Dan,

Guess that's why it's printed in big letters on the M18 Claymore mine, "FRONT TOWARD ENEMY".

Just in case they slept through that part of the training :c).

bumper

At 17:39 25 November 2015, bumper wrote:
>On Wednesday, November 25, 2015 at 7:32:35 AM UTC-8, Dan Marotta wrote:
>> On my recent visit to Minden I purchased both the MKIV yaw string
>> and the Quiet Vent.=A0 I'm extremely pleased with both.
>>=20
>> =20
>>=20
>> Hadn't heard about any g-string.=A0 Is that for aerobatic
pilots?=A0
>> What prevents it from drooping?=20
>> 8-)=20
>> --=20
>>=20
>> Dan, 5J
>
>Dan,
>
>There's been incredible interest in the MK1 Mod-a G-string. It's been in
>th=
>e works for years. But lots of bugs and issues. Wife won't let me hire
the
>=
>models needed to get the kinks sorted out . . . trying to push this
>further=
> would doubtless be a dead end for me.
>
>This thread was from '09!
>
>MKIII . . . ah, the memories :c), been replaced by the MKIV several years
>b=
>ack, and the MKIV has had improvements over it's run and should be at
>least=
> a MKV or MKVI by now. But then that would mean recertification and all
>the=
> associated costs, tests for flight into known icing, firing frozen
>chicken=
>s at it, that sort of thing.
>=20
>I seldom get orders direct anymore (except from the wife), MKIV's are
>mostl=
>y sold by the major on-line soaring suppliers; Cumulus Soaring, Craggy
>Aero=
>, and Wings & Wheels. I've finally hit the big time but will still need
>cro=
>wd funding for a suitable corporate jet. Haven't decided if it should be
a
>=
>sustainer or a self launch.
>
>bumper
>
>
>Bumper, my industrial spies are saying that the MKV will be Bluetooth
enabled, to better integrate with the modern sailplane avionics suite. I'm
sure this will help with the planned obsolesense and market expansion
you've been hoping for

And then the faded MkI that arrived on the windscreen of my Supercub
finally went missing somewhere over the Red Desert of Wyoming. Wildlife
Biologists have noted some strange mutation in the tail colours of wild
horses there....

Thanks. Curt
>

On Thursday, November 26, 2015 at 12:15:04 AM UTC-6, Curt Cole wrote:
> At 17:39 25 November 2015, bumper wrote:
> >On Wednesday, November 25, 2015 at 7:32:35 AM UTC-8, Dan Marotta wrote:
> >> On my recent visit to Minden I purchased both the MKIV yaw string
> >> and the Quiet Vent.=A0 I'm extremely pleased with both.
> >>=20
> >> =20
> >>=20
> >> Hadn't heard about any g-string.=A0 Is that for aerobatic
> pilots?=A0
> >> What prevents it from drooping?=20
> >> 8-)=20
> >> --=20
> >>=20
> >> Dan, 5J
> >
> >Dan,
> >
> >There's been incredible interest in the MK1 Mod-a G-string. It's been in
> >th=
> >e works for years. But lots of bugs and issues. Wife won't let me hire
> the
> >=
> >models needed to get the kinks sorted out . . . trying to push this
> >further=
> > would doubtless be a dead end for me.
> >
> >This thread was from '09!
> >
> >MKIII . . . ah, the memories :c), been replaced by the MKIV several years
> >b=
> >ack, and the MKIV has had improvements over it's run and should be at
> >least=
> > a MKV or MKVI by now. But then that would mean recertification and all
> >the=
> > associated costs, tests for flight into known icing, firing frozen
> >chicken=
> >s at it, that sort of thing.
> >=20
> >I seldom get orders direct anymore (except from the wife), MKIV's are
> >mostl=
> >y sold by the major on-line soaring suppliers; Cumulus Soaring, Craggy
> >Aero=
> >, and Wings & Wheels. I've finally hit the big time but will still need
> >cro=
> >wd funding for a suitable corporate jet. Haven't decided if it should be
> a
> >=
> >sustainer or a self launch.
> >
> >bumper
> >
> >
> >Bumper, my industrial spies are saying that the MKV will be Bluetooth
> enabled, to better integrate with the modern sailplane avionics suite. I'm
> sure this will help with the planned obsolesense and market expansion
> you've been hoping for
>
> And then the faded MkI that arrived on the windscreen of my Supercub
> finally went missing somewhere over the Red Desert of Wyoming. Wildlife
> Biologists have noted some strange mutation in the tail colours of wild
> horses there....
>
> Thanks. Curt
> >

I want the MK V to be INSIDE the canopy to avoid drag and damage from canopy covers. I bet for a mere $2-3,000 you could build one the projects the string direction via laser on the front canopy.

Why stop there, Herb?

Why not couple the internal MKIV laser enabled yaw string to the
autopilot which is already fed by the LX-950,010 which has the
pre-programmed course declared and active. The Power Flarm v. 71.3 can
input cars on the highways and pedestrians on the sidewalks by locking
onto their smart phones (Note: not available with T-Mobile) so that the
glider never overflies people on the ground while maintaining close
trail formation with the world champion upon whom you're unabashedly
leeching. Should the thermal detectors locate a stronger thermal than
our world champ is using, the system will take you to the higher lift.
Before long you'll be above the champ and, at the proper moment, you can
zip ahead and beat her! Meanwhile, the multifunctional MKIV will ensure
that your beer is at the proper temperature such that you can lean back
and enjoy a cool one as the system gently flares the ship, applies
brakes after touchdown, and rolls out to the trailer. Another tough day
of soaring under your belt! Oh, yes, since the firmware controls the
entire flight, you can paint your panel any color you want!

Happy Thanksgiving (for us Yanks)!

On 11/26/2015 8:44 AM, wrote:
> On Thursday, November 26, 2015 at 12:15:04 AM UTC-6, Curt Cole wrote:
>> At 17:39 25 November 2015, bumper wrote:
>>> On Wednesday, November 25, 2015 at 7:32:35 AM UTC-8, Dan Marotta wrote:
>>>> On my recent visit to Minden I purchased both the MKIV yaw string
>>>> and the Quiet Vent.=A0 I'm extremely pleased with both.
>>>> =20
>>>> =20
>>>> =20
>>>> Hadn't heard about any g-string.=A0 Is that for aerobatic
>> pilots?=A0
>>>> What prevents it from drooping?=20
>>>> 8-)=20
>>>> --=20
>>>> =20
>>>> Dan, 5J
>>> Dan,
>>>
>>> There's been incredible interest in the MK1 Mod-a G-string. It's been in
>>> th=
>>> e works for years. But lots of bugs and issues. Wife won't let me hire
>> the
>>> =
>>> models needed to get the kinks sorted out . . . trying to push this
>>> further=
>>> would doubtless be a dead end for me.
>>>
>>> This thread was from '09!
>>>
>>> MKIII . . . ah, the memories :c), been replaced by the MKIV several years
>>> b=
>>> ack, and the MKIV has had improvements over it's run and should be at
>>> least=
>>> a MKV or MKVI by now. But then that would mean recertification and all
>>> the=
>>> associated costs, tests for flight into known icing, firing frozen
>>> chicken=
>>> s at it, that sort of thing.
>>> =20
>>> I seldom get orders direct anymore (except from the wife), MKIV's are
>>> mostl=
>>> y sold by the major on-line soaring suppliers; Cumulus Soaring, Craggy
>>> Aero=
>>> , and Wings & Wheels. I've finally hit the big time but will still need
>>> cro=
>>> wd funding for a suitable corporate jet. Haven't decided if it should be
>> a
>>> =
>>> sustainer or a self launch.
>>>
>>> bumper
>>>
>>>
>>> Bumper, my industrial spies are saying that the MKV will be Bluetooth
>> enabled, to better integrate with the modern sailplane avionics suite. I'm
>> sure this will help with the planned obsolesense and market expansion
>> you've been hoping for
>>
>> And then the faded MkI that arrived on the windscreen of my Supercub
>> finally went missing somewhere over the Red Desert of Wyoming. Wildlife
>> Biologists have noted some strange mutation in the tail colours of wild
>> horses there....
>>
>> Thanks. Curt
> I want the MK V to be INSIDE the canopy to avoid drag and damage from canopy covers. I bet for a mere $2-3,000 you could build one the projects the string direction via laser on the front canopy.

--
Dan, 5J

On Thursday, November 26, 2015 at 7:44:05 AM UTC-8, wrote:

> I want the MK V to be INSIDE the canopy to avoid drag and damage from canopy covers. I bet for a mere $2-3,000 you could build one the projects the string direction via laser on the front canopy."

*****

Herb,

Some may not be aware, but when MKIV's are "born", they tend to a bit obstinate. Considerable time is devoted in obedience training so they'll behave properly in response to outdoor stimuli before we send them off to their new homes. They have been bred to love the outdoors where they thrive and remain excitable and responsive. We really don't want to change that. But we *are* listening to customers, so have selected several young MKIV's for indoor (inside canopy) training.

Frankly it hasn't been going so well. The little guys show no interest at all in a laser pointer (all we could afford for testing). It's really sad, they won't, um, perk up even in the presence of a pretty girl. Their little outdoorsy spirits are clearly broken as they just hang there all limp like. We can't stand to see them like this so are ending this test immediately. Sorry.

bumper
zz
Minden

You could make a hole in the forward part of the canopy so the internal
strings could get an idea of which way the wind is blowing...

On 11/27/2015 12:41 AM, bumper wrote:
> On Thursday, November 26, 2015 at 7:44:05 AM UTC-8, wrote:
>
>> I want the MK V to be INSIDE the canopy to avoid drag and damage from canopy covers. I bet for a mere $2-3,000 you could build one the projects the string direction via laser on the front canopy."
> *****
>
> Herb,
>
> Some may not be aware, but when MKIV's are "born", they tend to a bit obstinate. Considerable time is devoted in obedience training so they'll behave properly in response to outdoor stimuli before we send them off to their new homes. They have been bred to love the outdoors where they thrive and remain excitable and responsive. We really don't want to change that. But we *are* listening to customers, so have selected several young MKIV's for indoor (inside canopy) training.
>
> Frankly it hasn't been going so well. The little guys show no interest at all in a laser pointer (all we could afford for testing). It's really sad, they won't, um, perk up even in the presence of a pretty girl. Their little outdoorsy spirits are clearly broken as they just hang there all limp like. We can't stand to see them like this so are ending this test immediately. Sorry.
>
> bumper
> zz
> Minden

--
Dan, 5J

On Friday, November 27, 2015 at 7:02:53 AM UTC-8, Dan Marotta wrote:
> You could make a hole in the forward part of the canopy so the
> internal strings could get an idea of which way the wind is
> blowing...
>
> Dan, 5J

Dan,

Brilliant!

I think you are onto something. However, we might get the same functionality without that drafty hole by training the MKIV's to work as a team. There'd be one inside and one outside, both with tiny magnets so their tails stay aligned. That way when the canopy is all iced up and you can't see a thing outside, you'll still be able to take comfort in knowing which way the wind is blowing as you are falling out of the sky - that being mostly down of course.

bumper

On Friday, November 27, 2015 at 10:58:06 AM UTC-5, bumper wrote:
> On Friday, November 27, 2015 at 7:02:53 AM UTC-8, Dan Marotta wrote:
> > You could make a hole in the forward part of the canopy so the
> > internal strings could get an idea of which way the wind is
> > blowing...
> >
> > Dan, 5J
>
> Dan,
>
> Brilliant!
>
> I think you are onto something. However, we might get the same functionality without that drafty hole by training the MKIV's to work as a team. There'd be one inside and one outside, both with tiny magnets so their tails stay aligned. That way when the canopy is all iced up and you can't see a thing outside, you'll still be able to take comfort in knowing which way the wind is blowing as you are falling out of the sky - that being mostly down of course.
>
> bumper

Ummmmmm..... ..... next you'll say, "I need an app to fly IFR when I can't see through the canopy ice/frost"..... then you will get flamed, thus likely providing enough heat (from replies) to melt the ice/frost so you can see again (provided you didn't get stuck in clouds...)

BTW {again.... sarcasm....], yaw string (whatever version) is "relative wind", sorta helps with aerodynamics, not so much with terrain [/sarcasm]

OK, so I really tried to "toe the line" on legal as well as prudent.

I'm really hoping most of this thread is "tongue in cheek", sorry to be a "Debbie downer" for those that wanted to spend money for the "latest & greatest" (not that it wouldn't help some....).

Done.

Nomex suit on.

Cloud flying comes of age in the USA!

Of course you'll need a small reservoir filled with a 50/50 mix of
antifreeze and distilled water and a small nuclear powered pump to keep
the external string free from ice. Hmmmm... Should that be a closed
system or a total loss system as in early motorcycle primary chain
lubrication systems? Perhaps the power source for the pump could also
be pressed into service heating the pilot's socks and eliminating those
pesky lead-acid batteries. Properly located, it could also serve as a
birth control device.

Oh, how I love the low ceiling, snow, and ice...

Dan, 5J

On 11/27/2015 8:57 AM, bumper wrote:
> On Friday, November 27, 2015 at 7:02:53 AM UTC-8, Dan Marotta wrote:
>> You could make a hole in the forward part of the canopy so the
>> internal strings could get an idea of which way the wind is
>> blowing...
>>
>> Dan, 5J
> Dan,
>
> Brilliant!
>
> I think you are onto something. However, we might get the same functionality without that drafty hole by training the MKIV's to work as a team. There'd be one inside and one outside, both with tiny magnets so their tails stay aligned. That way when the canopy is all iced up and you can't see a thing outside, you'll still be able to take comfort in knowing which way the wind is blowing as you are falling out of the sky - that being mostly down of course.
>
> bumper
>

--
Dan, 5J