|
|
|
|
Andy:
The ribs in the 40 kit are triangle notched on the front, so you can use some square balsa stick for the LE. (I think I used 3/8 or 1/2 square). That way, the balsa sticks up higher than the ribs and it's easy to butt glue the sheeting to the back of it. I only used 3/8 CF tube for the forward and aft wing spars, as shown. Very strong, very light, and not expensive. Best part was being able to use a 3/8 Forstner bit to drill the holes in the ribs. Everything lined up perfectly over the plans. (Note the fuse hanging off the end of the bench while the wing is assembled onto the spars. Strange, but it works.) These things come out so nose heavy, I shoved as many servos as I could to the rear, and built the horizontal stab out of solid 1/4" sheet. You can see in the pic how it's sort of inlayed into the 1/4" stick frame that Joe B. designed. In the end, I only had to put about 1/2 oz of weight in the back, and only then after I went from a Macs muffler to the factory one on the 46AX. The sandpaper above the wing is for underhand launching. I mix about 1/8" up elevator trim (beyond level flight) with the flap switch on my Tx, to get a positive nose up on launch. Once she's established a positive climb angle, I flip it off. |
|
Last edited by Bob Hunt; Nov 19, 2012 at 06:40 PM.
|
|
||
|
Quote:
After the glue dried, I trimmed the ribs to a rough triangle with a knife. Next I took them to the belt sander and carefully created a wedge (also making a taper on the TE edge). Next, I glued on the other side of the balsa sheet. Note that I moved it 1/8" off the LE because I will trim that back for removing the bottom of the front portion to make it able to give me down elevator. This also extends the TE about 1/8". This will be sanded on all sides including top and bottom so that we end up with a 1/32" thick TE. The blue mark that you see on the top of the last photo is where the control horn will go. Hopefully this shows what you were asking about. Andy |
|
|
|
|
While that glue was drying, I fit the fins into the stabs. These will not be permanently attached until after covering, but they are snug fit together now. The angle is approximately 10 degrees from vertical.
|
|
|
|
And now the photos I've been wanting to shoot for a couple years!
All the wood parts are done except for the main gear doors. All you see here, which includes the nose retract, steering servo, and door weighs 24 oz. Andy |
|
|
|
You think I can rebuild it?
|
|
|
|
|
|
I don't see why not. That damage will buff out
The plane is simple enough, especially at that size, that you can build a new one pretty easily too. I'll be building another 400-size one myself this winter if I can get down the strata to it. Andy |
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Discussion | Micro Shrike Build Thread (was Mystery Build Thread) | AndyKunz | Electric Plane Talk | 104 | Sep 02, 2021 11:46 AM |
Build Log | San Diego Slopers Shrike build party.. | ORANATOR | Slope Soaring | 111 | Dec 21, 2012 01:21 AM |
another shrike question<s> | sylentbob3 | High Performance | 2 | Jun 03, 2005 09:17 AM |