1/2A stunt trainer design

Roger. You da man

did some cutting before work today.

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Looks good, Roger. You have a stuntable easy build sport plane, ought to be a lot of fun to fly. I just wished our area here in eastern NM had calm weather, like when I lived in California, Arkansas and Virginia. Smallest I fly so far is .15 because of that. Ron Cribbs can testify to that.

GallopingGhostler wrote:Looks good, Roger. You have a stuntable easy build sport plane, ought to be a lot of fun to fly. I just wished our area here in eastern NM had calm weather, like when I lived in California, Arkansas and Virginia. Smallest I fly so far is .15 because of that. Ron Cribbs can testify to that.

thanks!  we have quite a few breezy days here. most often though in the summer the wind clams down early evening.  i am about 3 miles from the atlantic ocean and maybee a somewhere around a mile from the closest bay.

i think i will order another piece of this air foil. depending on how this one performs i might mess with the fuse length

Roger
I'm back in town and tryuing to wrap up loose ends. So I owe you $23, right? How do you want it? In $100 bills? :-) Paypal? And if you send me your address, I'll print you off a copy of a plane with flaps you might like.
Here's a link with a picture, third post on second page of the thread, if I screwed up the link. It's called a Wing Master. I really like the plane and want to build another, but would make minor changes to the flaps for strength of the fuse.
https://www.coxengineforum.com/t5117p20-new-castor-oil-odyssey-plane

duke.johnson wrote:Roger
I'm back in town and tryuing to wrap up loose ends.  So I owe you $23, right? How do you want it? In $100 bills? :-) Paypal?  And if you send me your address, I'll print you off a copy of a plane with flaps you might like.
Here's a link with a picture, third post on second page of the thread, if I screwed up the link. It's called a Wing Master.  I really like the plane and want to build another, but would make minor changes to the flaps for strength of the fuse.
https://www.coxengineforum.com/t5117p20-new-castor-oil-odyssey-plane

Hundreds would be fine LOL!
Duke, I will pm you my email and mailing address. I like the plane. It looks similar in construction to mine. If you have a drawing of the ribs etc that you need send that along as well

Thanks!

Progress on my second trainer. I laminated the fuse from engine mount back to about 3/4" past the trailing edge of the wing with 1/32" plywood. Did the same on the stunt trainer.
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SWEET Rog!  I like it a lot. Coupling the flaps is tedious.. but I found it easiest to use a drill-guide attachment that comes with the Dubro hinge-slotting tool (#216) to drill the holes for a U-bent music-wire joiner. I twist the drill-bit with my fingers or a pin-vise through the hole in the centering-guide on the tool. Bending the "U" perfectly level takes some patience too. I install the coupler/joiner-wire first.. then mark and cut my hinges in. (same process for a split-elevator)

Here's the tool.. (shown with the drill-centering guide installed) I think the three drill sizes are 1/16", 3/32" and 1/8".



Here's the flap/elev. linkage on a tri-plane I designed years ago. The flap isn't split on this model though.. but the elevator is. I cut a < notch in the fuse for the one-piece flap.




Kind of a twist on "built-up"/sheet-slab construction.. wings and fuse.. covered in Mono-kote.



The tripe's tail-section of the fuse is framed with 1/4" square-Spruce stringers. It's hard to see in the pic.

Thanks roddiie! I may need to invest in some tools. I have always just gone the exacto knife method for cutting in hinges and yes flaps were always tedious as I remember. I'm also going to make one with a bit longer fuse to get a bit more space between the trailing edge of the wing and leading edge of the stab and see what works better

Love the tri wing btw roddie!

You'll love the duobro slotting kit! Less than a minute per slot, then you get better at it.

Phil

pkrankow wrote:You'll love the duobro slotting kit!  Less than a minute per slot, then you get better at it.

Phil

on order now i have to wait for it

Update on the bipe. So far I only see 1 fitment problem that I need to fix. I had enough material laying around to cut out a kit except for the 1/16" plywood for the struts. Hope to get to the LHS in the next couple days and pick up a small piece of ply to cut the struts. Other than that so far so good. I also have some plastic coming and hope to include the windshield as well
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Nice Rog! What's the nose's vertical dimension? Wondering how an aerosol-can cap-cowling would look. That bipe would look wicked with a cowl!  




A few key provisions for a radial/reedie mount would be to use a pair of 3/8" sq. Spruce blocks.. vertically adhered both sides of the nose.. on the thrust-line. Make them only just longer (taller) than needed to accommodate the engines back-plate mount. I used 4 Brass tabs mounted to the tops/bottoms of the blocks, for additional support for the cowl.



I ended up mounting the engine cylinder horizontal/outboard. The trim accents help to give a more 3-D illusion to a cowling on a profile fuse.



And then there's Jim Roselle's gorgeous Staggerwing..

now that's cool roddie!

i love all the detail in yours but that red one is really sweet! i think your right, a cowl would really make a difference!
the nose is 1.75" high but it would be easy to build up a bit. whats the smallest cap that will work and what should i look for?

Roger , the Ring Bipe is looking good , If possible I would like mine in a single piece wing , I can pay the extra shipping if needed ? The Scout plans are in the mail to you , going to PM you some pics also . Thanks ! Eric

getback wrote:Roger , the Ring Bipe is looking good , If possible I would like mine in a single piece wing , I can pay the extra shipping if needed ? The Scout plans are in the mail to you , going to PM you some pics also . Thanks ! Eric

oh i plan on it eric. these are the "export " wings. i wanted to cut a set and check the fitment.

i will let you know when the plans arrive.

who's this for a cowl Roddie? my first i must say. i cut a new engine mount and a backing plate

Cowl is a sharp addition to the Ring bipe, looks really good, firewall holes should provide ample cooling air through the cowl.

got home and threw the bipe together real quick. looks cool with the cowl! thanks for the suggestion roddie!!

Wow, nice on everybody. Now I'm anxious to get my kit. But, no rush Roger, I'm still working on my 1/2A Cyclone.

Bob

Wow, you dudes have some classy looking stuff going on.
Rusty

RknRusty wrote:Wow, you dudes have some classy looking stuff going on.
Rusty

Thanks rusty!

Having fun for sure. I think I need to cut a machine gun to mount somewhere...

I need to get the other two finished up. Not even sure I have another bee to put on this one..