|Typical Large Glow Engine Powered Free Flight - Dave Edmondson|
|Hybrid Car System of Engineering Ideas Work Together|
Now how does this relate to free flight? I see the competition free flight airplane as a total system that is optimized in many ways to give the longest duration given the constraints such as size, power, and minimum weight. There are so many factors that can be optimized such as; the aspects of the construction materials such as balsa density and grain, building structure types, covering material, and warps built in to give the proper flight path for a free flying model airplane. With power system if it is a motor it should have a high power to weight ratio given constraints to the competition classification. Aspects of the propeller such as diameter, pitch, and pitch ratio can make a difference in power models including rubber powered models.
|This Balsa Structure Made for Very Stiff Balsa Wing|
|Bob Hanford has Flown Free Flight Contests from a Young Age|
|Pressurized Fuel System and DT Timer on Dan Berry's Plane|
|Rubber Powered Model Needs Propeller and Rubber Strands Matched - Skeeter Surgine|
If you are flying indoor free flight it is a rather controlled environment but flying outdoor free flight which I have greater interest in now, has many additional aspects you must consider. There is the thermal air currents that you want to launch into but there is also sinking air, turbulence, and wind that will drift your model to parts unknown. This year I purchased a used radio telemetry system which am I learning to use. A small radio transmitter is attached to the airplane that sends out a signal that you locate with a directional antenna.
|Tiny RF Location Transmitter|
|Directional Antenna and Receiver|
|My Indoor Rubber Powered Model|
Note: I did not mention gliders, topic for another post.
|Hank Sperzel a Big Inspiration to Me|
Related Blog Articles
Related Links to My Short Videos
https://youtu.be/8efeH5pGhe8 - My Background in Free Flight Model Airplanes
https://youtu.be/pQnNaRu4ah8 - Learning to use Walston Tracking System
https://youtu.be/2hifn3N3OZY - Guillow's Lancer with fuse DT
https://youtu.be/abp5nQBiHnU - Texas Timers Micro DT
https://youtu.be/LFCQFKum2QU - High Speed of Glow Powered Free Flight Ruth Bane