Difference between Gear and Direct Drive?
05-02-2005 | 12:10 AM
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From: Bloomfield Hills,
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Difference between Gear and Direct Drive?
Hey guys,
The subject line was the question. I am tossing around the idea of micro sized helicopters (GWS Dragonfly) and hear that gear drive is better for beginners. Is this true? Plus if you could give a brief explanation of Gear Drive vs. Direct Drive, that would be very helpful as well.
Thanx in advance.
Kattaget
The subject line was the question. I am tossing around the idea of micro sized helicopters (GWS Dragonfly) and hear that gear drive is better for beginners. Is this true? Plus if you could give a brief explanation of Gear Drive vs. Direct Drive, that would be very helpful as well.
Thanx in advance.
Kattaget
05-02-2005 | 04:49 AM
#2
RE: Difference between Gear and Direct Drive?
A geared tail is more efficient than a direct drive setup.
At the low air speed that these props operate (usually close to zero) a large prop turning at lower RPM is more efficient than a smaller prop turning at higher RPM.
So a DD prop will reduce your flight time by a bit.
A DD setup typically uses a more robust motor that can handle higher voltage, so the DD setup usually does not burn out as often.
At the low air speed that these props operate (usually close to zero) a large prop turning at lower RPM is more efficient than a smaller prop turning at higher RPM.
So a DD prop will reduce your flight time by a bit.
A DD setup typically uses a more robust motor that can handle higher voltage, so the DD setup usually does not burn out as often.
