| Wing root chord | 11.00 |
| Wing tip chord | 6.00 |
| Wingspan (in.) | 39.50 |
| MAC (in.) | 8.50 |
| Area (sq. in.) | 335.75 |
| A/R | 4.65 |
| Stab root chord | 2 7/8 |
| Stab tip chord | 1 1/2 |
| Elevator root chord | 2 1/4 |
| Elevator tip chord | 1 1/4 |
| Span | 15.2500 |
| Area | 60.0469 |
| Elevator/Stab % | 44% |
| Stab/Wing % | 18% |
| Spinner backplate to LE | 7 3/16 |
| Cylinder centerline to LE | 5 5/8 |
| Wing TE to Stab LE | 9 5/8 |
| Motor weight (oz.) | 6.7 |
Can't wait to see it finished.
You need to draft that intermediate size for those with the FP 20s out there y1
The flying season is over(for me at least). Time to look back and remember things that made this season special and to begin work on the next world beater. This post is about looking back.
Around mid February I was going over my engine collection(It's a huge one: 14 motors)
Sorry to hear that it's gone Steve.
I fly a lot of 15 size models, and 24 oz is heavier than anything I'd consider flyable.
The model I flew yesterday (in the wind) has porked up since it was built. It now weighs 16 oz. Absolutely loved the wind.
Greg
NACA 0018 is perhaps the best all around airfoil for a stunter. And, that diagram looks quite a accurate to me.
This is not your average .15! KMD's are diesels.Your KMD (black head) is the first, and best, version. There's an engine test report of a black head at http://dkd.net/clmodels/acln/acln81.pdf
Your KMD (black head) is the first, and best, version.
What does "Russian style plug in gear" look like?
But, but -- 1mm is 0.039 inches, or a bit more than 1/32".
(Not that I understood any of the writing other than the "1mm"!)
Hi Steve,14? Collection?.....Large???&$@^#^)*%$#!!!!!!!!!! I have over 80, and that's not even considered a large collection. I don't even call it a collection at all.
That model looks like fun, but you have to do something about your engine collection. Only 14? I'm not sure that counts as a collection.
-Chris
Fuselage does not use ANY plywood. It is made out of 3/8 sheet, laminated with 1/16 balsa with carbon veil in between. The nose has an 3/8 side cheek for rigidity. The outcome was a very stiff and light fuse
What glue did you use for the fuselage lamination?
I used West System epoxy. Regular hobby epoxies won't work because they are too thick. With a thin epoxy, I can get the CF wetted out and remove excess by dabbing the surface with a paper towel. Another added benefit of thin epoxies is they can get absorbed by the balsa grain in a way similar to thin CAs which makes it for a stronger bond.<snip>
Steve
Steve - I've heard a lot of good things about West System epoxies. I still use Z-Poxy finishing resin for my laminations, which has worked great and is pretty thin and will penetrate most cloth/veil I've tried... but as for Z-Poxy's 30 min slow cure for other stuff, I don't care for as much, the 30 minute gives you about 5 before it starts to thicken.
Do you have a feel for how West Systems compares? Do they have an equivalent finishing resin and a slow cure epoxy glue? Every time I've thought about ordering some West Systems epoxy to try from places like aircraft spruce, I see all the huge gallon containers, too many part numbers to choose from and give up. If you have a part number for small quantities of the stuff you use, could you post it?