I am planning to build a Palmer 132" C-130. I want to get some ideas on the size engines to use. I see many people using .25's on the smaller C-130 versions.

Would 4 OS .52 four strokes be too little power?

Mike

Is this the right forum? Giant Scale RC

Well yes this is part of the Giant Scale forum, but it is the "Gas Engine" sub-forum. Since dual posts on the same topic in different forums are discouraged, you might PM one of this forum's moderators to get it moved to another forum.

Mike,

My opinion is .25’s will be too small for a 132” span C 130.

I am flying .25’s on an 8-pound Cherokee twin and the power is about right. I am flying .40’s on another 10-pound twin and the power is more than enough. I have had two .25’s on a 10 1/2 pound twin and the power was marginal. I recently acquired a 91” C 130 wing and believe .25’s will be approximately correct if the all up weight is less than 20 pounds.

Hope the information helps.

Bill