ORIGINAL: VeeAte
I also noticed that the nitro planes one has two screws securing the top wing mount to the fuselage (bracing).
Should I still make up a cross brace?
I guess better to be safe than sorry.
I think the Nitro model has only front and back cabane frames. WM has a diagonal that goes from the top of the front frame to the bottom of the rear. A diagonal really is needed. The WM setup really stiffens the fore-aft rigidity of the cabanes. Truth is, the WM setup stiffens the fore-aft of the front frame. When I put my backup WM Ultimate (the 1st flew so excellently well, that I ordered a backup within a month) together, I plan to take one of the diagonals and reverse it. No added weight, and both front and back frames get extra fore-aft rigidity. Or maybe run a brace straight back at the top of the frames. whatever.........
Also will a OS 70 Surpass four stroke be too much weight for this plane? Or would I be better off running the SK .50 and pitts I have coming?
I have both engines on the way. the 70 I bought for my Harmon Rocket III, but the biplane would sound cool with a 4 stroke.
I am guessing not as the biplane was originally designed for a .30 so most likely way overkill. (I dont even know for sure if the .70 is the same size crankcase etc as a .40 2c)
Sorry for all the questions. I want this bird to fly right.
For sure, that little sucker doesn't need any more power. I've tried to hover mine and the surfaces aren't 3D capable and it's a rocket of a biplane with the OS46AX. I'd use the lighter of the two engines in the Ultimate. Well, if they're both heavier than a 46AX, that is.
It was designed as a .30 size, and really is fast with the 46AX. Mine did balance without added weight with the 46AX however.