C.3603 Thun
Speed measurings , 5th November 2005.
Air temperature = 18 degrees Celsius, almost no wind.
engine MVVS .21 w black silencer, completly non modified
prop Aviomodelli 9X4
fuel 20% castor oil, 2% of nitro
rpms approx 15000
weight 1200 grams
airfoil NACA 2415 – NACA 2410
wingspan 114 cm
Aircombat model C.3603 Thun is a working horse of many aircombat pilots in Slovenia. In our contests we can see it in big numbers – sometimes more than 50% of all. The reason is because it is very easy to fly and in the hands of good pilot is the ultimate fighter. All balsa model&Oracover. We tried many engines and flying characteristics were excellent with all. Mostly we use MVVS .21 engine with black silencer and also standard ones. Some pilots use engines like Webra .25, OS MAX FX.25, Magnum .25. For tests we also tried standard .15 engines, MVVS .15, electro versions, but the fastest was version with Rossi .21 engine. It is interesting that model with .15 engine is not noticeable slower than with bigger engine. The differences were in hand launchings and in maneuvers.
