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Electric Stunt => Gettin all AMP'ed up! => Topic started by: jjorgensen on October 06, 2011, 07:23:57 PM
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A real challenging build from plans. Rolled plywood cowl almost an ounce lighter than aluminum cowl in recent kit offering of this design.
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Looking good - LOTS of battery room (side to side anyway!)
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JJ,
What is the setup you plan to use?
One thing I would suggest to to allow about 1/8" additional height for the battery to puff a little and still fit into the compartment. I have a Stuka with a TP 4S1P 2100 pack that when the pack was new slipped into the top load compartment with a very close fit. Now that I have 25 flights on some of the packs they are about 1/16" thicker, still hold full charge and capacity but can't slip in without a fight.
Best, DennisT
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The setup is a Turnigy 3548-900, Hubin Timer, Phoenix 45 ESC, 12-6 pusher prop, and currently a 3000 mah 4S lipo. I'm hoping to be able to downsize the battery once I see how much mah I need to do the pattern.
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JJ,
You might want to try an 11x5.5 on it as the original ship flew well with a 10x6 on a Fox 35. My Stuka which is about the same size ship flies well on a APCE 10x6 or a 3 bld 9x6P (Master AirScrew) pulls about 1700 out of the 2100 for the 5min; 20sec flight time (60' CtoC).
Best, DennisT
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Very cool.
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Now that is really nice. One of my all time favourite OTS planes. Can't wait to hear how it flys. I notice you have a sheeted Leading Edge, Just checking my plans and mine has Cap Strips with half ribs. Is the sheeting on yours shown that way on the plan?
TTFN
John.
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I got hooked building a lost foam wing and find it the easiest way to build a straight wing. So I modified this and built it lost foam with a formed leading edge. It is so much easier to get a uniform airfoil.
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Aha, makes sense, It was always the fuselage construction which put me off actually building one but I have looked with interest at Walter Umland's kit as he seems to have a fool proof jigging method for fuselage construction. If postage on Kits to the UK was not so prohibitive I'd probably have built one of his by now.
TTFN
John.
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The fusalage was the most challenging part. I built a simple jig that allowed me to place the formers so they extended below the building surface. Then I could install the wing, stab and gear, and plank the bottom. After that, all I had to do was flip it over and plank the top.