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| SteveM, Comment for image # 17164 | 23 Mar 10 20:58 |
| I measured the upper left wing to be 19 3/32", the upper right to be 19 3/16", the lower left is 19" and the lower right is 19 5/32" when measuring the length of the wing along the main spar. Based on the fit of the parts I'd say 19" would be the correct dimension and the others were stretched in printing. I've never noticed this kind of slop before, is this fairly normal? |
| SteveM, Image # 17164 | 23 Mar 10 20:55 |
The upper right wing on the plans is not to scale as you can see by this 3/32" gap at the end of the ailerion T.E. (Part A9) |
| SteveM, Image # 17149 | 22 Mar 10 21:48 |
Making the tail feather outlines. I elected to make the bowing forms out of a lamination of 1/8" and 1/16" balsa sheet. It would have been easier to use some 3/8" thick by 6" wide sheet I had, but I couldn't bear to carve it up when I had a pile of low quality balsa from Tower Hobbies on hand. Notice I had plenty of broken sticks. |
| SteveM, Image # 16333 | 08 Feb 10 15:25 |
Thursday night I informed Dumas of the defective engine cowl front on the far right in the picture. They got the replacement cowl here very quickly! |
| BillParker, Comment for image # 16151 | 28 Jan 10 18:20 |
| Perfect. If you look at the engine nacelle/wheel pant assy drawing on my "plan" (I use the term plan loosely) you'll see a VERY flat airfoil shape. This is all I'll have to go by. Even at 80" in wingspan I'm not sure I can build a wing that flat and still have it support itself structurally. I like your airfoil better, and can design my own to fit my drawings. |
| SteveM, Comment for image # 16151 | 28 Jan 10 17:15 |
| In the bottom left corner are 1/8" thick wing root ribs, R1 for the upper wing and R1A for the lower wing. The sheet to the right is 1/16" thick and both top and bottom wings use R12. Up on the plan "section B-B" is of the upper wing root and "section D-D" is of the bottom wing root. |
| SteveM, Image # 16151 | 28 Jan 10 17:12 |
For Bill |
| BillParker, Comment for image # 16129 | 28 Jan 10 12:54 |
| when you get around rto it, may I see F-1 (guillow's designation wing formers) and F-12? |
| BillParker, Comment for image # 16129 | 28 Jan 10 04:44 |
| we'd be talking full scale at that point, and my wife would leave me. |
| SteveM, Comment for image # 16131 | 27 Jan 10 22:39 |
| The Park 300 motor diameter (not including motor mount) is about 2.7cm and the large gear on the Hellcat's motor is about 2.5cm. Anything larger than these rotating around the same axis as the prop will have trouble fitting, and I'm not sure these will fit anyways due to the curve of the nacelles. |
| SteveM, Comment for image # 16131 | 27 Jan 10 22:34 |
| On the left is an E-Flite Park 300 brushless outrunner, the motor probably will fit, but the motor mount seen here has tabs that stick out too far to fit. On the right is a GWS LPS motor with 4:1 gearbox that is almost identical to the motor Pat recommends, except that it is designed to swing an 8" prop. In the middle is a brushless motor sized to fit the MM Hellcat, you can't see it well from this angle, but the gear is nearly as big as the Park 300 motor and would have clearance issues. In summary, use very small outrunners or a geared motor in which you make sure the gearbox doesn't have large gears that won't fit. |
| SteveM, Image # 16131 | 27 Jan 10 22:27 |
These are the front pieces of the engine nacelles and a few motors for size comparison purposes. |
| SteveM, Comment for image # 16129 | 27 Jan 10 20:28 |
| Bill, just blow up the plans till those larger stringers are the size of a 2x4. |
| John M Oshust, Comment for image # 16129 | 27 Jan 10 19:41 |
| Wow.. now I can open my box to see if I have all that you have. |
| BillParker, Comment for image # 16129 | 27 Jan 10 19:16 |
| Whoa. I think I'll stick to my plywood and sawdust... |
| SteveM, Image # 16129 | 27 Jan 10 17:21 |
The kit includes good quality wood, several plastic pieces, Sullivan cable, aluminum tubing, music wire, styrene rod, 3 sheets of plans, and an instruction booklet. Not pictured is the tissue, peel and stick decals, tail feather patterns, and a bag of miscellaneous hardware such as wheels and string. The bottle of Ambroid Pro-Weld is from the LHS, I got their last bottle. The directions talk about using a CAB cement, but assumes I know what that is. Are we talking about traditional Ambroid liquid cement, Testors wood cement, Sig-Ment, or something else? |
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