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Archive for March, 2006
Posted by Ron Williams | Mar 27, 2006 @ 12:18 PM | 6,030 Views
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When the Element was loaded to go to the field the first few times, planes were spread all around on the rear floor and there was a big mess in the back. Getting everything in and out was hard on my back and the planes. When the planes were put up on the folded seats and the windows were open they blew around. Time to design.

The box is made out of blue foam. The bottom is made from 1 1/2" blue insulating foam that had been laying around the shop and the rest is from 1" foam purchased for the box. It required less that half of a 2ft. x 8ft. sheet. Deciding on the dimensions of the box required measuring the car and the planes.

The planes were propped up on scrap lumber and measured to determine how deep the box had to be so that the planes could be supported by the sides and the slots in the sides. The width of the box is wider than the maximum propeller diameter (by a few inches) that might be on any plane in the box combined with clearance for any servos in the wings (for ailerons). The length (the longest dimension) of the box was determined by the space between the wheel wells in the back of the car.

Once the box was assembled the planes were propped up in place again to determine spacing that would allow the maximum number of planes and the least chance of damage when they were loaded and removed. The slots for the wings were cut with a very thin Japanese saw. The other cuts were made with a 1 1/2" putty knife...Continue Reading
Posted by Ron Williams | Mar 27, 2006 @ 12:04 PM | 6,285 Views
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A recent building project was Gary Wright’s Mini E3D. The kit was started a few monthss ago and has flown. How was the kit? Just fine except for a few little things involving the fuselage side balsa, the strip wood and a few places that had to be watched to ensure an accurately built framework.

The two fuselage sides were made from very different pieces of balsa. One side was stiff, heavy “C” grain and the other was very light and soft “A” grain. After testing them alongside each other for stiffness, some thin CA was run along the length of the “A” grain piece and hit with accelerator. That stiffened it up considerably. Assembling the fuselage required close attention to keeping it straight and aligned. In spite of that attention it came together a bit off but some soaking in acetone loosened things up and allowed it to be trued. Lesson learned: The stabilizer should be aligned with the wing before the fuselage is finally glued together.

The strip wood was quite curvey but there was enough with the kit and in the backup bins (Thank you, Aerocraft) to overcome what could have been a frustrating experience. Even wood that looked straight when picked soon warped in the summer humidity.

The paper/phenolic tubes that support the aluminum wing connecting tube allowed the wing to be twisted and for the twist to be held long enough to glue in an undesireable warp. Again, acetone loosened things up so the warp could be removed; the situation...Continue Reading
Posted by Ron Williams | Mar 27, 2006 @ 11:51 AM | 6,078 Views
The Pulsar aka Simply the Best is ready to fly. The only damage from its test flight crash was a small dent in the “D” tube of the wing at the center mounting peg, not worth trying to fix. The fuselage has now been faired into a 30mm spinner and painted with a rubbed out finish of red Krylon.

The wing tips were covered (as purchased) with a pretty apple green film that was almost invisible when the plane was up high, reducing the visibility of the plane by the area of the tips. They have now been recovered in the same red as the rest of the wing - seeing it is much easier now.

The motor, a Razor 2500 with a CC 25A ESC/BEC turned a 9 x 6 folding prop for the test flight. Next flight, with a draw of 12.5 amps on the 3S 1320 TP Prolite pack, will be with a Freudenthaler 10 x 7. The radio is a 4 channel Berg controlling the motor and a mixed V-tail.
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Posted by Ron Williams | Mar 27, 2006 @ 11:41 AM | 5,919 Views
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