FlatRat – Plans


Printed plan to build the FlatRat – 1/2A class electric control line trainer.


Wing Span | 18 in
Overall Length | 18 in
Wing Area | 100 in2
Flying Weight | 5 oz
Wing Loading | 7.2 oz/ft2
Controls Required | Control Line
Construction | Balsa / Ply
Category | Trainer

Delivery Options

Need a re-print of the original construction article? Collecting plans and prefer not to work from your originals? Outfit your plans build with one of our sharp decals!

Additional Details

Printed plan set to scratch build the FlatRat 1/2A size electric control line trainer – as printed in the Winter 2016 issue of balsabuilder magazine.


  • 22 in. x 34 in. printed plan set (folded)


See the construction article in Volume 1 | Issue 3 of balsabuilder magazine for more details

  • Balsa wood sheet stock (3/32 in. and 3/16 in.)
  • Plywood sheet stock (1/32 in. and 1/16 in.)
  • Basswood strip stock (3/16 in. square)
  • Covering film, 1-2 rolls AeroLITE
  • Hardware
  • Wing covering film, 2 PatchPaks AeroLITE (assumes painted fuselage and tail)
  • Clear urethane or lacquer sealant.
  • Control line handle with 30′ dacron lines

Suggested Electronics:

  • Motor, Park BL-300 Motor (SUPA2204-14)
  • ESC, 10A Brushless (SUP10AESC)
  • Battery, 325mAh 7.4V LiPo
  • Electric control line timer


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