View Single Post
Old 10-18-2012, 01:12 PM   #2
Super Contributor
solentlife's Avatar
Join Date: Oct 2010
Location: Ex UK Brit now in Latvia west coast - Ventspils
Posts: 10,767
View solentlife's Gallery47
Thanked 483 Times in 475 Posts
Club: Founder Member Ventspils RC Club. Ex Waltham Chase and Meon Valley Soaring.
Awards Showcase

Scratchbuilders Award  Scratchbuilders Award  Outstanding Contributor Award  125mph Speed Demon 
iTrader: (0)
Friends: (17)

Motor / Prop selection ...

My idea is lets say a 1.2m span ... maybe 4 x 1200 - 1500kv motors with 7x5 props with 3S Lipo. (Correct me if thoughts are I should change that ...)

Question : With 4 props spinning away .. contra rotation. My thoughts are to not only have contra rotation based on each wing side .. but also the pair each wing ... that is ....

not only one pair contra to the other pair per side .. but also the two making up the pair are contra.

ie left outer anticlockwise rotation, inner left clockwise. Inner right counterclockwise, outer right clockwise.

The motors paired as inners and outers ... so in event of one system failing - we still have a prop either side turning.



222kph PKJ,EDF Concorde, Mini4,Mig3,T45,PKJ twin,ME109,Edge540,Cessna182,Skymaster Biplane,F15,F16,Badius,Ultimate,SE5,Qbee10,450 Heli,V911,J3 Cub Founder 9x forum:
- Subscribe my Youtube: "solentlifeuk"
solentlife is offline  
  Reply With Quote
Page generated in 0.03829 seconds with 16 queries