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Old 07-19-2009, 08:20 AM
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ameyam
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Default Engine for 3D: 4stroke or 2stroke

Dear all,

just wanted to know which engine is better for 3D and why. 4Stroke seem to be more prevelant than 2Stroke. Also, most planes are now installing the engine inverted for aesthetic reasons. Have had a bad time in the flying season with an inverted OS75AX.... it wouldnt remain tuned no matter what and kept cutting out even in straight and level flight. Are 2stroke engines really unsuitable for inverted installation? I want to know this because I have a Reactor 3D on order. If I am to put a 2stroke 55AX vertical or at 90 Deg in it, I will have to do major modifications to the cowl. My alternative is a OS 70Alpha which is twice as expensive. Saitos are not available and YS too expensive so I am stuck with these two, 46AX and 75AX

Ameyam