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A vintage-style slow flyer

Old 11-13-2006, 12:06 AM
  #1  
dersteinmeister
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Default A vintage-style slow flyer

Greetings all,

I'm new to the forum and wanted to share this slow flyer. I designed it with the 1940s style pylon free flight designs in mind. Been flying it for almost three years now. Nothing fancy, just an old speed 400 can motor and home-made gearbox, but I'm routinely getting 40 minute plus flights. Here are the vital stats:

Span 63in, area 470 sq in, aspect ratio 8.2, weight 16 oz, wing loading 4.9 oz per sq ft. Fuselage is pod-and-boom; the boom is a ¼ inch carbon tube. Wing is stick and tissue with some carbon fiber re-enforcement at the polyhedral breaks. Covering is light silkspan colored with Rit dye. Battery is 4 lipo cells (880 ma hr each) connected in series/parallel as a 7.4 volt/1760 ma hr pack. The battery is enclosed in a 1/8 inch sheet balsa box just behind the motor, a Graupner 6 volt Speed 400. The home-made 3:1 reduction drive is brass tubing, steel threaded rod, and LEGOS plastic gears. Propeller is an APC “park flyer” 11 x 4.7 inches. The ESC is a Castle Creations Pixie-20 with 6 volt BEC, and the servos are Cirrus CS 20s (9 grams each). Controls are pull-pull with Kevlar thread.

Best flight time so far is 44 minutes. I estimate the average current draw during flight at about 3 to 3.5 amps, for an input power of around 25 watts.
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Old 11-13-2006, 01:25 AM
  #2  
Sky Sharkster
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Default Old-Style Floater

Hi Pete, Welcome to Wattflyer! Just wanted to let our readers know I've seen this model fly several times and it IS a floater! Flights of 1/2 hour, easy. Pete also cuts his own foam wings, flys an electric-powered U-Control model, flys Slope gliders and Pilots the real ones, too.
Good to hear from you, Buddy!
Ron
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