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Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
Where did the day go! Seems like I just got started on the rudder this morning and now its early evening and time to give it up for the day. Got the rudder cut out, The two leading edges glue/spot glued into place. Also got the Hinge boxes in place and finally did the glass up of the vert stab. Very cool way to reinforce this area, but gets kind of sticky to Having a functional rudder for some is a must but not for me. Spent most of last night and all of today modifying for a functional control surface that probably will never be used Am not planning on a gyro as with my Eagle it's fights the stabs significantly and isnt needed on takeoff. Most likely the Falcon wont need it either.
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
Over night the resin did its magic and I got a nice clean hinge line reinforced with glass cloth. With the balsa blocks installed prior to the glass work the hinge line will be nice and strong, and no questions about high speed flutter Final hinge work will come later after getting the the vertical stab carbon mounts installed and glassed.
Up next up the always fun wing mount steps
< Message edited by Mark Basel -- 2/13/2006 5:44:36 PM >
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
Nothing replaces experience, The second time is always better!!!! As with the wing mount steps with my F-15 It was unknown territory but with the Falcon it was a snap. Following PA's instructions to the letter I placed some "Glossy: tape over the wing mount areas on the fuse and used some wax (hardened not liquid) I got from my wifes nail salon. Rubbed it on the wing root area of the fuse to keep glue from sticking that may have oozed out of the carbon fiber and main spar mount areas. Also used some vaseline to protect the fuse were the carbon mount pegs hold the wing in place fwd and aft.
Using built up foam board to suspend the fuse from the wings, slid the wing into place on the spars and carbon fiber mount pegs, wiped away the excess aeropoxy before the wings touched the fuse. Set the wings in the foam blocks, lined everything up, taped and clamped the wing in place, check the foam blocks again, added some ankle weights and Viola!
it's done! glad thats over
< Message edited by Mark Basel -- 2/28/2006 3:03:14 AM >
Posts: 878
Joined: 2/25/2002 From: Schertz,
TX, USA Status: offline
Mark, Be careful when you install the antirotation pins. Make sure they stick out enough to go throught he ply doubler in the fuse. Following the instructions you put the pins in with epoxy not cured and when you join the wings the pins push further into the wing than expected. After you get the wing all jiged up make sure the pins protrude through the ply in the fuse before the epoxy sets. Same for the vert. stab + make sure the ply bottom is on the stab before the pins are set.
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
I was careful with that and check them out when I pushed the wing onto the spar boxes. The came out pretty good. Will keep an eye on the vertical stab as I will be doing that tonight.
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
Yeah! am finally complete with the stab and vertical fin install.
Not to difficult really as the only thing that takes some time is alignment of the stabs to the wings and the vertical stab alignment to the fuse.
The tricky part is the "eye balling" of the stabs to the trailing edges. Basically what is done is to use a flat piece of stock balsa or in my case aluminum shelving standards to create one plane of reference and the wing trailing edges as another. Using the balsa strip you "eye ball" (bend and stoop) moving down until the planes match. Unless your real lucky they wont as one stab will be off. Then its just a matter of adjusting the stabs until both planes are equal when they intersect. Easy!!!!?! I think I did the squats about 3 dozen times until my knees gave out. Advil is a great product by the way
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
The Vertical Stab is removable, so it is important go get a tight fit with the mount box, carbon fiber mount shaft, and fwd mount. It's kind of a trick to hold the shaft in place with tape and using pressure with your finger for insurance and getting the stab to align with the plywood cap and getting the carbon fiber front mount into its slot. But I was lucky and it turned out pretty good. Tape it into place and "Eye ball" the stab square using a building square and once again using a balsa strip taped to the bottom of the horz stabs as a plane of reference. Close enough for me.
Posts: 287
Joined: 1/5/2002 From: Lincoln,
NE, USA Status: offline
Thanks Warbird AirRacer. I'll get it right yet
The pace has slowed on the build the last couple of weeks. Didnt get anything done this weekend as i attended a co-workers wedding and went flying today! 65degree days in February you cant pass up.
2 weekends ago I did manage to mount the Ventral Fins for static display only as PA suggested not to fly with them. Thought it would be a straight forward step but there is nothing really straight about it. Nothing difficult but to get a nice looking mount with flush seams took me a better part of a day Its somewhat difficult (at least for me) to get two curving shapes to match. But---with the help of a great friend Lynn Elsner who has taught me some of the ways of a master painter, I got it done. Using a product called Metal Glaze it was a realtively easy task to fill in the two surfaces for a nice finish. Also got the gear doors cut out and ready to mount the door cylinder rod end mounts. Thanks Lynn! Hang in there buddy, see you in a couple of weeks in Tucson!
< Message edited by Mark Basel -- 2/28/2006 1:58:58 AM >
Printable Version
All Forums >> RC Airplanes >> RC Jets >> RE: Avonds F-16 build 
RE: Avonds F-16 build - 
Having a functional rudder for some is a must but not for me. Spent most of last 
Am not planning on a gyro as with my Eagle it's fights the stabs significantly and isnt needed on takeoff. Most likely the Falcon wont need it either. 
Final hinge work will come later after getting the the vertical stab carbon mounts installed and glassed. 
As with the wing mount steps with my F-15 It was unknown territory but with the Falcon it was a snap. Following PA's instructions to the letter I placed some "Glossy: tape over the wing mount areas on the fuse and used some wax (hardened not liquid) I got from my wifes nail salon. Rubbed it on the wing root area of the fuse to keep glue from sticking that may have oozed out of the carbon fiber and main spar mount areas. Also used some vaseline to protect the fuse were the carbon mount pegs hold the wing in place fwd and aft. 
