RCU Forums - View Single Post - Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Old 02-16-2015 | 12:58 AM
  #1386  
serious power
 
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From: wexford, IRELAND
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Hi Brenner,
That's certainly a different approach.
Not that that is a bad thing - they say that 'there are many ways to skin a cat'.
One or two additional props in the range may be worth considering to restore some user options - say a 21" pitch rear and 19" front.
Of course I'm saying this while not knowing what motor options are going to suit this. All very interesting.

Besides bearing life/service intervals the main thing I see in this is the weight.
The saving will allow a lot of current, large, models carry 5000mAh or more battery capacity instead of being stuck with 4400's so as to make weight.
It also looks like you could do a much smaller set of spinners, diameter wise, as an option.

Brian