John Cooper's Rubber Powered Freeflight Page 6

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Loire 46

A fairly complicated model for a peanut, I was lucky to find an excellent plan (which I reduced to 50%) at Outerzone . It is a little heavy for a peanut, but it gets good flights nonetheless. Video

  • wingspan: 33 cm (13")
  • weight: 12.2 g without rubber
  • power: 1 strand of 3 mm
  • design: Don Buttman
  • built: 2016
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Nesmith Cougar

This is repair of an old model. I fixed numerous breaks and gave it a new covering job. No Video Yet

  • wingspan: 32 cm (12.5")
  • weight: 9 g without rubber
  • power: 1 strand of 3 mm
  • design: Peck-Polymers
  • repaired: 2015
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North American Rockwell OV-10 Bronco

My first all foam scale freeflight model. It is built from about $2 worth of foam pie plates. The red colouring is red tissue, attached with glue stick. Currently it can fly about 30 seconds and can also ROG. Video

  • wingspan: 61 cm (24")
  • weight: 53 g without rubber
  • power: 1 strand of 6.4 mm (each nacelle)
  • design: John Cooper
  • built: 2015
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Comper Swift

Flies quite well for a model with little dihedral. Occasionally the rubber motor seems to rub against the nose, near the front hook, and the model loses power. I added a piece of heat shrink tube to help prevent this.  Video

  • wingspan: 33 cm (13")
  • weight: 8.4 g without rubber
  • power: 1 strand of 3 mm
  • design: Andrew Moorhouse
  • built: 2015
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Dehavilland Beaver

This model is built from a Guillows kit. Unfortunately I built the float struts too short and needed to use a smaller home-build 3 blade balsa prop instead of the kit prop. I was able to get the model to rise off the gym floor, on floats, for a very short flight. Video

  • wingspan: 61cm (24")
  • weight: 33.8g g without rubber
  • power: 2 strand of 3/16 inch
  • design: Guillows kit
  • built: 2014
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Hawker Hart

I modified this West Wings kit of a Hawker Hart into the trainer variant, with 2 forward facing seats. The model climbs nicely in a tight spiral, from a ground take off. Video

  • wingspan: 63.5cm (25")
  • weight: 60 g without rubber
  • power: 2 strand of 3/16 inch
  • design: West Wings kit
  • built: 2013
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Aichi D3A Type 99 Val

This model is built mostly per the Dumas plan. The major exception is replacement of any heavy wood with thinner and lighter contest balsa. I was fortunate to find domestic tissue that was close to the scale color. I made this more opaque by chalking it with dark green. .Video

  • wingspan: 76cm (30")
  • weight: 72 g without rubber
  • power: 2 strand of 3/16 inch
  • design: Dumas
  • built: 2012
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Stinson SR-7 Reliant

This is a peanut scale (13") Stinson SR-7 Reliant. I build this from a scaled down plan of the Comet kit. The plan I used was redrawn in CAD by Paul Bradley. The model is covered with red domestic tissue that was chalked with red. The black trim was done directly on the tissue with a laser jet printer. .Video

  • wingspan: 33cm (13")
  • weight: 6.3 g without rubber
  • power: 1 strand of 1/16 inch
  • design: Comet (CAD upgrade by Paul Bradley)
  • built: 2011
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Henschel H.S. 123

This is a peanut scale (13") Henschel Hs 123. I was a little hesitant to start this model because there were so many difficult pieces to build. These included wheel fairings and cowl with numerous rocker arm blisters. However, the plane oozed so much character that I had to build it. .Video

  • wingspan: 33cm (13")
  • weight: 10.4 g without rubber
  • power: 1 strand of 1/16 inch
  • design: Pres Bruning
  • built: 2011
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Nieuport 17

This is an overhaul of my 10 year old, worn out Nieuport Old Nieuport 17. I removed the rather wrinkly silver tissue and replaced it with domestic tissue. I also added more scale details like the rotary engine. The model is now finished in the paint scheme of Albert Ball. Video

  • wingspan: 51cm
  • weight: 35.8 g without rubber
  • power: 2 strands of 1/8 inch
  • design: John Cooper
  • built: 2010
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Grumman F4F Wildcat

For a WW2 fighter, this model turned out to be quite easy to trim. It was rather heavy due to its barrel-like fuselage and short nose moment. The wings are removable via balsa wood spars fitted into paper tubes in the fuselage and wings.  It is covered with domestic tissue that has been chalked and painted. Video

  • wingspan: 48cm
  • weight: 40 g without rubber
  • power: 2 strands of 1/8 inch
  • design: Diels plans
  • built: 2010
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