UMS 40 TOP version of Pike Precision F3B & F3F

Currently there is no way of improving the performance of F3B and F3F model significantly by any new aerodynamical design. There is however an option to improve the structural compostition of materials. Therefore we have laid up a new version where we managed to increase stiffness of the complete model and decrease the weight. This is done by use of hi-tech materials and adjustments in the production technology. From the business point of view it might be better to introduce a new model every year with changed design. But the performance of the model would be similar and that would not be fair to our customers.
Stiffness (resistance to twisting and bending of single model parts) is the most important for a model flying speed with turns. Every bending or twisting of a model in flight works like drag that can substantially influence the reached altitude after start or final time on the speed. The biggest influence for the result is then reduced to the setting on a model and the pilot´s skills. Many pilots have already proven that Precision can fly really fast. e.g. 2014 Jan Kohout 1st place individual Belgium Anthsness, best speed 12,56 s (best speed in Europe in the history of F3B and best speed contest average 13,22)
New UMS 40 version together with previously demonstrated improvements of slim fuselage and our precise LDS system can help to be a step ahead and closer to victory between close top pilots.
Material composition profits especially from the nature of fiber Tenax USM 40 (modulus 395 Gpa). Fabric woven of this fiber is used for inner layer of the wing sandwich, for v-tail and also complete fuselage. The results is much less twist. Pilots who has been flying with basic carbon 80 version will recognize very quickly that he needs much less deflection to control a model made with UMS 40.

F3B version layup: TeXtreme ST76 + d-box ST76 + rohacel 51 IGF 1,2mm + UMS 40 40g/m2. LDS with 4x22g servos, fuselage servos 2 x 20g. RTF weight from 2000g depending on CG and coloured design. That is a 33,72 g/m2 load with a large area of 59,303 dm2. We can produce F3B model with lower wing loading, that will be stiff enough for all conditions but can not reach the same stiffness.

F3F version layup: ST76+ D box ST76 + rohacell 51 IGF1,2 mm + ST76 /UMS 40 55g/m2 + stiffer fuselage. LDS with 4x 22 g servos, fuselage servos 2 x 20 g, RTF weight from 2090g depending on CG and colour design

We have produced several testmodels of the UMS 40 version to prove the performance of the model before we went to series production. Jürgen Pölzl,AUT won the first F3B Eurotour 2016 in Colmar,FRA 9.-10.4.2016 with UMS version. 

Radovan Plch won Eurotour RC-Network-Open F3F 2016 (FRA)20. - 22.05 2016. results at  


some photos by Tomas Winkler

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