Very cool, what may I ask is your all up weight?
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Official Dynam 1500mm B-26 Marauder Thread
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I had a few more nice flights today on mine - I tried out a few things (as I mentioned in a previous post):
a) I removed the tail weights
b) I adjusted the incidence of the stab, lowering the LE about 1/16 inch.
c) I tried using a 3600mah battery instead of the 4000.
Total weight with the 3600 battery: 5 lbs 10oz (5.625lbs)
I played with the balance a bit, moving the battery forward bit by bit. My original balance point was 60mm back from the LE. After three flights now I have it set at 55mm and it seems to be very close to where it should be.
The front edge of the battery is about 1.25 inches in front of the edge of the strap.
Testing the CG - With the balance point at 60mm, I flew the plane into a 45-degree up-line and released the stick, and the model continued to rotate towards vertical (indicating tail heavy)
At 55mm, did the same thing and the model held the line (indicating its close to correct)
I can still force a snap-roll if I try very hard, but it is much better than before. I've reduced the elevator throw to just a little under 1/2 inch. It flies wonderfully.
I've had no problems at all at low speed with tip-stalling but I use flaps.
After a 5.5 minute flight the battery read 3.92 volts per cell (same as the 4000).Marc flies FW & FL: AL37, MiG-29, T45,F4, A4, A10, F104 70 and 90, P38, Dauntless SBD, Corsair, B17, B24, B26 & P61, Lipp.P19, ME262, Komets, Vampire, SeaVixen, FMS Tigercat, FOX Glider & Radian XL.
Rabid Models foamies, including my 8' B17 & 9' B36... and my Mud Ducks! www.rabidmodels.com
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Originally posted by themudduck View PostI had a few more nice flights today on mine - I tried out a few things (as I mentioned in a previous post):
a) I removed the tail weights
b) I adjusted the incidence of the stab, lowering the LE about 1/16 inch.
c) I tried using a 3600mah battery instead of the 4000.
Total weight with the 3600 battery: 5 lbs 10oz (5.625lbs)
I played with the balance a bit, moving the battery forward bit by bit. My original balance point was 60mm back from the LE. After three flights now I have it set at 55mm and it seems to be very close to where it should be.
The front edge of the battery is about 1.25 inches in front of the edge of the strap.
Testing the CG - With the balance point at 60mm, I flew the plane into a 45-degree up-line and released the stick, and the model continued to rotate towards vertical (indicating tail heavy)
At 55mm, did the same thing and the model held the line (indicating its close to correct)
I can still force a snap-roll if I try very hard, but it is much better than before. I've reduced the elevator throw to just a little under 1/2 inch. It flies wonderfully.
I've had no problems at all at low speed with tip-stalling but I use flaps.
After a 5.5 minute flight the battery read 3.92 volts per cell (same as the 4000).
Straight and level at speed what happens?
Comment
-
Originally posted by themudduck View PostI had a few more nice flights today on mine - I tried out a few things (as I mentioned in a previous post):
a) I removed the tail weights
b) I adjusted the incidence of the stab, lowering the LE about 1/16 inch.
c) I tried using a 3600mah battery instead of the 4000.
Total weight with the 3600 battery: 5 lbs 10oz (5.625lbs)
I played with the balance a bit, moving the battery forward bit by bit. My original balance point was 60mm back from the LE. After three flights now I have it set at 55mm and it seems to be very close to where it should be.
The front edge of the battery is about 1.25 inches in front of the edge of the strap.
Testing the CG - With the balance point at 60mm, I flew the plane into a 45-degree up-line and released the stick, and the model continued to rotate towards vertical (indicating tail heavy)
At 55mm, did the same thing and the model held the line (indicating its close to correct)
I can still force a snap-roll if I try very hard, but it is much better than before. I've reduced the elevator throw to just a little under 1/2 inch. It flies wonderfully.
I've had no problems at all at low speed with tip-stalling but I use flaps.
After a 5.5 minute flight the battery read 3.92 volts per cell (same as the 4000).
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