Thread: Build Log A-7D Project
View Single Post
Old Apr 03, 2011, 03:06 AM
monkamarm2000 is offline
Find More Posts by monkamarm2000
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,779 Posts
yeah ive seen it a million times guys go to 10,000 cells to upkeep an extra 2 pounds thrust adding least 2 pounds in process. and in doing so raising requirement in flight nixing the reason you started going big. and big power has short band, since its so heavy its equal on full throttle and lacking anywhere below that. a smaller twin setup will have thrust you need but always have a higher average velocity, even more so lending to each other, and are just plain lighter to build up. good example is x2 even just 10s midi fans. thats 1.2 pounds each system, almost 20 pounds thrust installed! and 225mph velocity full and still 190s backed off, and thats not including 13 percent efficiency boost of twin. go twin 100's ya got all that plus 15 percent, for about 8% weight gain.

Barry
monkamarm2000 is offline Find More Posts by monkamarm2000
Reply With Quote