Free Flight Model Flying © Martin C. Gregorie 1999-2023. All rights reserved. I have tried virtually every form of model flying, but my first love is flying gliders built to the F1A international competition class.
Free Flight Heaven: Livno,YU in 1985 The world's best flying site? 50km x 8km, all this flat. Jim Thornberry and myself (with model)

Designs, Articles and sources

• Carbon Fibre Wing Construction, an illustrated manual.
• Easymini, a 200mm span beginner's catapult glider.
• Effect of stabiliser section changes.
• Electronic thermal detection.
• Electronic timers.
• F1A technical development history. 11/12/21
• F1J/F1P engines - a summary. 06/01/23
• F1Q equipment.
• Flexhook: a new F1A towhook concept from Allard van Wallene.
• Mechanical Soldering, a short guide.
• Rubber model propellers from 1/2" balsa sheet.
• Saqqara Bird - building and flying a replica.
• Silly Putty d/t timer - a construction guide.
• Thistle 14, a small outdoor electric Free Flight sport model.
• Use of Trackers
• Wing Wake visualization

Free Flight stories

• Tales from the flying field
• October 2001, my trip to the 2001 World Free Flight Champs.
• Maxmen 2003 illustrated.

Full-size aviation

• Anzani aero engines.
• Avro 504K.
• The Canterbury (NZ) Aviation Co. Ltd Biplane, possibly the first land plane to be designed and built in New Zealand.
• Caudron Biplanes. These types were used as basic trainers in the period 1916-1918.
• Rotary aero engines.

Applied Aerodynamics

• Aerodynamic references for small wind turbines. 23/04/22