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Old 09-12-2006, 11:56 PM
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Don Szczur
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Default RE: 40% Extra 300 Construction by-the-numbers

The zero dihedral wing resulted in just a little bit of opposite aileron and up elevator mix with rudder (3 to 5 % each) but more importantly the yaw is very linear across the full spectrum of maneuvers, to include 3D knife edge.

Weight measured as follows- ready to fly less fuel:

Left wing 3Lbs 11 oz
Right wing 3 Lbs 10.6 oz
Wing tube 14.8 oz (CF)
Canopy/deck 1 Lb 12.8oz
Elevators and stab tube (CF) 1 Lb 13.6 oz
Spinner 9.2 oz (non-lightened backplate)
Prop/hub 1Lb 4.4 oz
Fuselage 25 Lbs, 0.4 oz

Total weight if I added this up correctly is basically 38 3/4 Lbs. This is significantly lighter than what I was expecting.

The airplane flies totally different from the existing Extra 300 I'm flying. This is mostly due to the lighter weight, additional servo per aileron side, zero dihedral. Results have been very favorable so far.