Ola Fremming's homepage

F3P technical

Since F3P is about flying indoors in sport-halls the available space is limited, or to say it differently; the sectors are absolute as a typical hall is 20x40m with height from 6-7 to 10-12m. To be able to do aerobatics within such a limited space the key is low speed, and the key to low speed is low weight. On such small models the saving of each gram is a good thing and one has to work to get every part down in weight.  Typically the models are made of thin sheets of foam, the most common brand is called 'Depron'. While 3mm Depron is pretty light there is quite a lot too loose by milling down the thickness in most of the structure (How to mill Depron).  On a typical sized model one can expect to save up to 20g or more by milling, and that is significant.  Of course the equipment must be selected for low weight also, below is a summary of all parts of my SuperSirius model.