Originally Posted by boomerace
Just checked the specs and the Tower Pro 21 weighs 50.2g and the Blue Wonder I'm using weighs 24g with about the same thrust!
The recommended 250 weighs only 14g so you are going to be really nose heavy!
I would guess the Blue Wonder will give much better performance due to the decreased weight and I will be using a 9 X 4.7 0r 9 X 3.8 APC SF prop with pitch speed better suited to the draggy airframe plus you will be drawing 13+A and I will be drawing 10A. Keep us posted on your progress!
I use that blue wonder in both the Jenny and SE5A with an APC 8x4 thin electric prop and it has plenty of power. I like that it is a bolt in with no mods to the existing motor mount on the SE5a, though i did add some more right thrust to it.