AVC Posted August 26, 2014 Share Posted August 26, 2014 I'm probably teaching grandma to suck eggs, but the point here is, as Simon says, how the power is delivered. The outcome of a specific powertrain depends on the combination of power, torque, revolutions, prop efficiency, etc. Also we have to be cautious with the power figures provided by the manufacturer, especially for IC engines. I've seen cases where an engine is clamed to deliver, let's say 2hp @ 12,500 revs, yet it's rated between 2,000 and 11,000. On the other hand, it's true that the trend is to overpower. I still remember that the original Stampe Precedent was meant for a .46 glow and in fact the prototype was flown with that size of engine, with and without reduction gearbox, and today we think that a 120 is a small engine for the same model... Quote Link to comment Share on other sites More sharing options...
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