MK IV yaw string installation ....

On 6/7/2010 1:33 AM, bumper wrote:
On Jun 6, 10:46 pm, wrote:
You don't need Bumper to install the Mark IV...anyone can do it.

Simlpy drill a 1/2 inch hole in your canopy and place a 1/2 diameter
stove bolt in the hole. These are available on the aviation aisle at
Home Depot. Put a nylok type nut on it ...leave it loose for now. Wrap
the Mark IV around the bolt several times and secure it with a standard
stevadore's Fernortner Hitch. Now carefully torque the stove bolt to
4500 Foot Pounds. Don't over torque. Finally, mix up a batch of Shell
Epon 925 aviation epoxy and drizzle this goo on the bolt. Don't get the
epoxy on the string. If you do epoxy the string make sure it is lined up
on the longitudinal axis...you will feel a whole lot better about your
flying. Next place 4 pounds of lead in the tail to re-balance the
glider. Now get your log book out and log the install. Don't forget to
have the glider re-weighed to verify proper balance.

That's it. See, it's easy and I am sure that Bumper would approve of
this procedure.

Paul
ZZ

By posting your free DIY instructions for your heavy duty yaw string,
you've likey desimated 12 years of development and labor that's gone
into the, relatively speaking, delicate and frangible MKIV. How am I
supposed to compete with that? BTW, you forgot to mention your yaw
string mounting bolt should easily accept a Tost hook.This will
quickly become the accepted and preferred tow hook position for all
gliders as the pilot can easily sight right down the tow line to
positively, absolutely stay in position behind the tow plane. And if
the tuggie feeds you the rope 'cause he doesn't approve, "What the
heck!" it's just another big, very well damped, yaw string streaming
back.

bumper
bumperm at verizon dot net (thanks Eric)


Bumper
Ah yes, I look forward to the seemingly annual Mark IV Yaw String
thread. I also look forward to your Mark V upgrade...I am sure it will
be a hit. I suggest an electronic version...perhaps with several hard
drives which would require additional batteries of course. Maybe include
a digital HD readout. Also don't forget a transmitter so we can follow
your turn coordination online. Hmmm then if you upload to the OLC in
real time, you could.....

Paul
ZZ

I am looking forward to the MK V digital audio yaw string. I hope we can select what annoying sound to hear when we are not coordinated.

Boggs

On Wed, 26 Dec 2012 10:26:07 -0800 (PST), Waveguru
wrote:

I am looking forward to the MK V digital audio yaw string. I hope we can select what annoying sound to hear when we are not coordinated.

Great! Now I won't have to import metric yarn for my German ship any
more.

rj

On Wednesday, December 26, 2012 12:26:07 PM UTC-6, Waveguru wrote:
I am looking forward to the MK V digital audio yaw string. I hope we can select what annoying sound to hear when we are not coordinated.



Boggs


Have you heard the rumor the digital version will have an output for driving an artificial horizon?...Also, the planned Mark VI upgrade will be an IR sensor suite for thermal location assistance. (The Mark V will have to be shipped back to the factory for this upgrade.)

Might not want the rules committee to hear about some of this stuff...


Mark IV plank owner...

On Wednesday, December 26, 2012 1:03:43 PM UTC-8, RAS56 wrote:


Have you heard the rumor the digital version will have an output for driving an artificial horizon?...Also, the planned Mark VI upgrade will be an IR sensor suite for thermal location assistance. (The Mark V will have to be shipped back to the factory for this upgrade.)


Might not want the rules committee to hear about some of this stuff...


Mark IV plank owner...


Typically, when people hear a new version is forthcoming they'll delay their purchase to wait for the new one. Thus sales plummet and the struggling company is unable to fund R&D needed to bring the new version to market - - then they go bankrupt.

I want to assure all that when the new MKVI* electronic, with IR thermal sensing, PowerFlarm anti-collision interface, and Micro-Mems solid state horizon (those contest rules guys won't even notice the micro-miniature OLED display without using a 10X jeweler's loupe) is available, MKIV customers will be able to trade in there analog MKIV for a new MKVI at no charge - - FREE! (Just pay shipping and handling of 30 AMU's.)

*Not all MKVI features will be functional upon initial release. We are concentrating all our efforts on getting the yarn to reliably indicate yaw prior to working on other promised features.

bumper

bumper wrote:
On Wednesday, December 26, 2012 1:03:43 PM UTC-8, RAS56 wrote:


Have you heard the rumor the digital version will have an output for
driving an artificial horizon?...Also, the planned Mark VI upgrade will
be an IR sensor suite for thermal location assistance. (The Mark V will
have to be shipped back to the factory for this upgrade.)


Might not want the rules committee to hear about some of this stuff...


Mark IV plank owner...


Typically, when people hear a new version is forthcoming they'll delay
their purchase to wait for the new one. Thus sales plummet and the
struggling company is unable to fund R&D needed to bring the new version
to market - - then they go bankrupt.

I want to assure all that when the new MKVI* electronic, with IR thermal
sensing, PowerFlarm anti-collision interface, and Micro-Mems solid state
horizon (those contest rules guys won't even notice the micro-miniature
OLED display without using a 10X jeweler's loupe) is available, MKIV
customers will be able to trade in there analog MKIV for a new MKVI at no
charge - - FREE! (Just pay shipping and handling of 30 AMU's.)

*Not all MKVI features will be functional upon initial release. We are
concentrating all our efforts on getting the yarn to reliably indicate
yaw prior to working on other promised features.

bumper

Have you considered offering custom fiber options for the yarn? Hemp
offerings may become more popular in CO and WA in the near future :-D

Pete (owner of a MkIV)

I just received my Mark IV for Christmas. I appreciate the detailed instructions. Should I use any type of specialized instrument to trim the length of the yaw indicating natural fiber unit?

XF

On Thursday, December 27, 2012 11:08:12 AM UTC-8, wrote:
I just received my Mark IV for Christmas. I appreciate the detailed instructions. Should I use any type of specialized instrument to trim the length of the yaw indicating natural fiber unit?



XF

MKIV's are made with a long yarn so the owner can trim it to the preferred length. No specialized instrument is required, though chewing through the yarn makes for a ragged end.

Early MKI's were mostly trimmed using a sharp flake chipped of a handy flint rock. We've come a ways and now a pair of scissors is the suggested device. However, lasers, meat cleavors, shaped charges, or any of a number of other devices might be pressed into service. Use your imagination.

Don't forget to re-knot the end.

bumper

http://m.youtube.com/watch?v=OPFPaDPNx5w

Bumper,

My Mark IV worked incredibly well all last season, as you can tell in the above shamelessly plugged video. I'm sure you'll be wanting to use some of the footage for your pending NCAA College Football Nat'l Championship, Super Bowl, or Soccer World Cup ad campaigns.

On another note, at some point you will need a corporate pilot to fly your yaw string company's King Air around, please advise when the application window is open! OR,...if there is flight testing needed on the proposed Mark V's and VI's...I'm your guy! The current gig/cubicle I'm flying...is getting stale, and the flight test excuse may be the "raison d' etre" that surmounts the signifcant other's resistance towards getting a self-launcher that anyone else can plainly see is urgently needed.

ZAP

On Friday, December 28, 2012 8:09:40 PM UTC-8, bumper wrote:
On Thursday, December 27, 2012 11:08:12 AM UTC-8, wrote:

I just received my Mark IV for Christmas. I appreciate the detailed instructions. Should I use any type of specialized instrument to trim the length of the yaw indicating natural fiber unit?


XF

MKIV's are made with a long yarn so the owner can trim it to the preferred length. No specialized instrument is required, though chewing through the yarn makes for a ragged end.

Early MKI's were mostly trimmed using a sharp flake chipped of a handy flint rock. We've come a ways and now a pair of scissors is the suggested device. However, lasers, meat cleavors, shaped charges, or any of a number of other devices might be pressed into service. Use your imagination.

Don't forget to re-knot the end.

bumper
Bumper, can you confirm your PM again please. I tried the ones earlier in this thread but they were bounced by verizon. It looks like it's been a couple of years since you added your contact details in.

Kelvyn