ORIGINAL: volkan
a friend has just bought a segull spacewalker for 40-53 size, however in the manual it says
that engine size should be 46-61[X(].
would a 40la be enough???????? let me know your set-up.
If you need to ask the question, then it's an indication that it probably will be for you - or your friend if he's asking the same question.
Seagull's Spacewalker will fly on a 40LA no problem at all, but it won't be a "Wild Thang!". Its generous airfoil and wing area carry the weight easily, so that the only difference between fitting an 40LA and highly timed twin ballraced 46 such as an AX will be (i) the speed it flys at, and (ii) how much excess power is available for vertical performance. If you've already got an LA, go ahead and buy the Spacewalker with confidence. It'll fly it. You can fit that 46 later when you want more vertical and/or speed. If you haven't got the 40LA, I'd recommend you buy that twin ballraced 46 for it. Properly run in, set up and tuned right, a 46AX or similar provides abundant grunt for this model. It would be an understatement to say that a .61 would be overkill in this airframe.
You can find an accurate review of the model here.
http://www.rcuniverse.com/magazine/a...article_id=379
I know, I know. It's the Spacewalker
II, but they are essentially identical. The changes are either cosmetic or structural, neither of which effect performance.
You'll really enjoy this model. Seagull are producing some tremendous sport models at killer pricing these days.