Doodles...

Some times you have more time than you know what to do with,

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..


Thought I'd share - just for fun.



Richard

The .gifs need a DLS line, or patience.

In article ,
Richard Lamb wrote:

Some times you have more time than you know what to do with,

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..


Thought I'd share - just for fun.



Richard

The .gifs need a DLS line, or patience.

hmm, they seem to have been doodled in invisible ink...

Smitty Two wrote:

In article ,
Richard Lamb wrote:

Some times you have more time than you know what to do with,

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..


Thought I'd share - just for fun.



Richard

The .gifs need a DLS line, or patience.

hmm, they seem to have been doodled in invisible ink...

Oh
, I guess I forgot the secret decoder ring function?

http://home.earthlink.net/~cavelamb

There is no index file, just some pics.

(thanks Smitty)

"Richard Lamb" wrote in message
...

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..

http://home.earthlink.net/~cavelamb

Richard...............

It looks vaguely familiar. . .

http://www.homebuilt.org/kits/littner/cp80.html

Rich S.

"Rich S." wrote:

"Richard Lamb" wrote in message
...

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..

http://home.earthlink.net/~cavelamb

Richard...............

It looks vaguely familiar. . .

http://www.homebuilt.org/kits/littner/cp80.html

Rich S.

Does look darn close but the Zephyr is a bit larger
at 19+ span and 17' long.

This one is a bit smaller.
call it 16 foot span and 15 feet long.
and maybe a full foot shorter in height.
I think it was 6o to 66 sq ft for the wing area is
about the same for both.

I just uploaded a cross section sketch that shows the
size a little (intended as a pun) better.

http://home.earthlink.net/~cavelamb/l-one-2x.jpg

Guess/wish 500 pounds empty with a VW,
but
this is one place where a 912 and adjustable
prop would really rock.

Or spec the Rotax 914 (turbo!) and a higher
aspect ratio wing (longer span) for those
mini-U2 missions....

It looks like a Midget Mustang. The MM-1 span is 18.5 ft 66 sq ft and 16.5 long and anywhere between 650-780 empty or more. If it can be built under 500lbs empty with a light engine VW or 912 it sould be bullet.

Jim Williams

Originally Posted by Richard Lamb

"Rich S." wrote:

"Richard Lamb" wrote in message
...

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..

http://home.earthlink.net/~cavelamb

Richard...............

It looks vaguely familiar. . .

http://www.homebuilt.org/kits/littner/cp80.html

Rich S.

Does look darn close but the Zephyr is a bit larger
at 19+ span and 17' long.

This one is a bit smaller.
call it 16 foot span and 15 feet long.
and maybe a full foot shorter in height.
I think it was 6o to 66 sq ft for the wing area is
about the same for both.

I just uploaded a cross section sketch that shows the
size a little (intended as a pun) better.

http://home.earthlink.net/~cavelamb/l-one-2x.jpg

Guess/wish 500 pounds empty with a VW,
but
this is one place where a 912 and adjustable
prop would really rock.

Or spec the Rotax 914 (turbo!) and a higher
aspect ratio wing (longer span) for those
mini-U2 missions....

"Richard Lamb" wrote in message
...

This one is a bit smaller.
call it 16 foot span and 15 feet long.
and maybe a full foot shorter in height.
I think it was 6o to 66 sq ft for the wing area is
about the same for both.

I can't see any scale or measurements on your sketches. Maybe I need better
glasses.

Or spec the Rotax 914 (turbo!) and a higher
aspect ratio wing (longer span) for those
mini-U2 missions....

Or an Apex T62-32?

http://avonaero.com/solar32.htm

You could lose the cheek cowls, reduce frontal area by a bunch and maybe
come in at your desired weight. Does a tailwheel airframe back up real well?

Rich S.

[links snipped]
Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..

http://home.earthlink.net/~cavelamb

http://www.homebuilt.org/kits/littner/cp80.html

Does look darn close but the Zephyr is a bit larger
at 19+ span and 17' long.

I just uploaded a cross section sketch that shows the
size a little (intended as a pun) better.

http://home.earthlink.net/~cavelamb/l-one-2x.jpg


Looks like a bigger version of this:

http://members.shaw.ca/gnat/1views.html
Gnat GK-7
Continental 4A084 military standard engine
(Est.) Empty Weight: 250 lbs.


Montblack

Rich S. wrote:
"Richard Lamb" wrote in message
...

Here are some (on topic - no less) doodles of a small low wing.
inspired by Bruce King's tiny little BK-1..

http://home.earthlink.net/~cavelamb

Richard...............

It looks vaguely familiar. . .

http://www.homebuilt.org/kits/littner/cp80.html

Rich S.



I thought this was a really cute Hummel (SWR @New Braunfels)

http://home.earthlink.net/~cavelamb/huml-03c.jpg

Looks like a full VW installation (as opposed to VW/2).
Which gives enough thrust to fly well, but seems to be a bit
heavy for the little wing (per BK).

Bruce King flew his Hummel (full 1825 VW) to Sun-N-Fun and
to Oshkosh. I'd hale that as the most successful VW powered
project I know of.

King gave BK-1 a little larger wing for the same weight and
got a much better flying airplane for his effort.

Haven't seen Bruce in a while. Last time was at the Hondo
Christmas parade. On a tiny flatbed trailer, Bruce and BK-1
buzzed the crowd on Main St!

But absolutely NOBODY believed that little airplane could
really fly...

Well, since you asked...

this one is a 76 sq. ft wing which is not the exact right wing
for this plane, but the worksheet was already done-so...what.

No idea how the columns will hold up on the net, but .....
it's worth a try...

The spar caps are 1-1/5" X 1/8" 6061 with 1-1/2" x 1/8"
6061 straps layered to the indicated (interpreted) thickness.

Bruce bolted his spar, which produced a very straight spar
assembly.

Hammering big rivets into small structures will invariably
induce some distortion.

We are doing is a beam spar rather than a proper box, so the
sheer web dimension should be doubled.

And?
No promise that any of this is close to correct...

================================================== ======================

X-Wing SPAR Build .58 R.Lamb 2001
Project Name L-One V
Run time: 01-10-2006 at 10:43:10

Wing Span [ft] 17.00 Root Chord
[ft] 5.00
Wing Area [sqft] 76.50 Tip Chord
[ft] 4.00
Chord thickness [%] 12.00 Mean Chord
[ft] 4.50
Gross Wgt [lb] 888.00 Aspect Ratio
[#] 3.78
Lift (Vs) [lb] 888.00 Wing Loading
[lb/sqft] 11.61
V(min) [mph] 59.04 Max
CL [#] 1.30
Load Factor [G's] 4.00 Spar Width
[inches] 1.50
Cap Compression [psi] 66,000 Shear Web [psi]
10,000
Thickness [% of Chord] 12


Sta W.STA. AIR LOAD SHEAR MOM FTLB
num FT PPF LB FT.LB
1 0.000 232.000 1776.000 7268.000
2 0.850 236.000 1580.000 5842.000
3 1.700 241.000 1389.000 4580.000
4 2.550 246.000 1201.000 3479.000
5 3.400 250.000 1018.000 2536.000
6 4.250 255.000 838.000 1747.000
7 5.100 260.000 663.000 1109.000
8 5.950 264.000 491.000 618.000
9 6.800 269.000 323.000 272.000
10 7.650 273.000 159.000 67.000
11 8.500 278.000 0.000 -1.000

Spar weight parameters:

Sta W.Sta. SPAR HGT CAP THK WEB THK
num FT IN IN IN
1 0.000 5.760 0.306 0.031
2 0.850 5.645 0.251 0.028
3 1.700 5.530 0.201 0.025
4 2.550 5.414 0.156 0.022
5 3.400 5.299 0.116 0.019
6 4.250 5.184 0.082 0.016
7 5.100 5.069 0.053 0.013
8 5.950 4.954 0.030 0.010
9 6.800 4.838 0.014 0.007
10 7.650 4.723 0.003 0.003
11 8.500 4.608 -0.000 0.000

Shear web thickness is for a box type spar. For single web, double
it.

================================================== ======================