stunthanger.com

General control line discussion => Open Forum => Topic started by: goozgog on November 20, 2016, 11:14:42 AM

Title: Profile Cheek Cowl Damper Box
Post by: goozgog on November 20, 2016, 11:14:42 AM

  I showed this idea in Motorman's Lite-ply thread
and since I've had a few requests, here's a
drawing of the damper box.

   The thing to notice is that the top and bottom of
the box extend across the maple mounts.
The mounts and the box go back to the glassed
wing center section .
I lighten the mounts with holes.
 
   I left some details out of the drawing such as
rounding the edges and closing the leading end
with a plug of balsa.
Everything is finished with epoxy and some glass
where needed to tie it to the wing.

   This is a very effective way to stiffen the nose
and transmit vibrations back to the mass of the wing.
The engine seems to like it a lot.

Cheers! - K

Title: Re: Profile Cheek Cowl Damper Box
Post by: goozgog on November 20, 2016, 03:39:10 PM

Since I'm being asked, here's
some pictures from Brodak's.
Elwyn Aud photos.

   This is my lucky color scheme
that I've been using since 1968
on many planes.

   The Enigma is Brodak Miss Ashley Red
over Insignia White, over buffed epoxy.
   The fuse is built up balsa, carbon
cloth and veil.
The wing is Tom Morris' Millenium Wing design,
medium silkspan over dress lining.

   This would be a good time to thank Sparky
for taking the time to help groom this plane.
Every bit helps!

Cheers! - K.

Title: Re: Profile Cheek Cowl Damper Box
Post by: TigreST on November 20, 2016, 04:56:42 PM

Sweet!

Title: Re: Profile Cheek Cowl Damper Box
Post by: Steve Helmick on November 20, 2016, 07:32:16 PM

I went to my computerized list of potential stunter names and removed "Enigma". Just so you know!  LL~ Steve

Title: Re: Profile Cheek Cowl Damper Box
Post by: Bill Johnson on November 21, 2016, 09:35:22 AM

Thanks for the drawing Keith.  H^^

Title: Re: Profile Cheek Cowl Damper Box
Post by: Tim Wescott on November 21, 2016, 10:21:43 AM

Quote from: Steve Helmick on November 20, 2016, 07:32:16 PM

I went to my computerized list of potential stunter names and removed "Enigma". Just so you know!  LL~ Steve

Take out the 'g', put it back.

Title: Re: Profile Cheek Cowl Damper Box
Post by: goozgog on November 21, 2016, 02:04:29 PM

Quote from: Tim Wescott on November 21, 2016, 10:21:43 AM

Take out the 'g', put it back.

Sorry to bump this aging thread but...

OMG that's funny!   y1

Title: Re: Profile Cheek Cowl Damper Box
Post by: Steven Kientz on November 21, 2016, 02:51:47 PM

Enima would be appropriate because you only get out what you put in.

Title: Re: Profile Cheek Cowl Damper Box
Post by: Russell Shaffer on November 21, 2016, 04:19:09 PM

I may glom onto the name since it matches my flying.

Title: Re: Profile Cheek Cowl Damper Box
Post by: M Spencer on November 21, 2016, 04:59:00 PM

Enima would be appropriate

I thought that was one off those Japanese Vans !  I thought I was following a 4CENT Honda up the Hill the other week , apparently it was a acent , sholda hada 'S ' . ???

ANYWAY Nice Plane . Always thought the olde nose stiffeners were mandatory . Good System . A bit like the old Goldberg Cosmic Wind / Shoestring / Buster .

With say a piece of 1/8 ply across the front - to allow for a bit of a radius , with a HOLE in it , you can get Cooling Air thru to the crankcase , if your somewhere a bit warm .
Another cross piece / bulkhead just aft of the engine , and the doubler opened under the crankcase . H^^

Thought that was a .46 . Now I see its a .60 . So we see why its necesary !  ;D.