140mm/5.5" prop kit
makes 5 props with 0.015" blade thickness
you set the pitch as desired.
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Measures pitch in mm ratio at 70% radius for 140mm props on prop hanger or bare shaft.
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10:1 winder, easier to count turns
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10:1 light duty winder, all plywood gears, a fun project with a functional winder once you are done.
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6 off - #4 Buta-N O-Rings
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6 off - 15/64" OD - 7/64" ID (No. 5) Buta-N O-Rings
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Simple winder for small motors/beginners,
ONLY ONE LEFT
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Traditional boiled green soap and glycerene lube.
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5 1/2" Prop on hanger for 1/8" x 3/8" stick models
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30g of 3/32" FAI Tan Super Sport Rubber strip
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4oz of 3/32" FAI Tan Super Sport Rubber strip
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1lb box of 3/32" FAI Tan Super Sport Rubber strip
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1/4" wide masking tape - 60yd roll
color may vary according to availability
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2 off x 12 inches - 0.020" Stainless Steel Spring Wire
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2 off x 12 inches - 0.033" Stainless Steel Spring Wire
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Laser-cut Hard Teflon Thrust Washers, 6 off
Size #1 - 1/8" OD for 1/32" shaft
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Kit contains sufficient carefully selected wood, SS spring wire and thrust bearings to build up to three two rotor Science Olympiad type helicopters. Covering and rubber not included in this kit.
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Updated and improved for the 2017/18 seasons rules. Great first build project for any age 11 and up. Most built will fly 60 sec. or better. Adapted from Lloyd Shales' Minnow.
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Universal indoor model stand, ~9" tall for all stick fuselage type models, fixed wing and helicopters. Great for safely holding delicate Science Olympiad models.
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Universal rotor building makes LH and RH rotation rotors with 2 blades. Comes with 17deg., 19deg., 21deg and blank (cut your own) 1/8" balsa pitch blocks and 1/16" ply center locator.
4", 5" and 6" rib radius forming tool also included.
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Div. B Towers 8.0cm gauge
Laser cut from Baltic Birch
plywood, for checking your Tower
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12' of ~0.045" custom stripped FAI Super Sport rubber
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12' of ~0.050" custom stripped FAI Super Sport rubber
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12' of ~0.055" custom stripped FAI Super Sport rubber
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12' of ~0.060" custom stripped FAI Super Sport rubber
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12' of ~0.070" custom stripped FAI Super Sport rubber
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12' of ~0.075" custom stripped FAI Super Sport rubber
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12' of ~0.080" custom stripped FAI Super Sport rubber
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12' of ~0.085" custom stripped FAI Super Sport rubber
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