Mike oxbig
15% nitro is my cologne
Depending on the airframe and the way the muffler is mounted you can avoid a lot of mess. I added a $4 silicone exhaust diverter on the end of the muffler on my su 31 with a 91 surpass up front and it reduced the oil residue to nothing more a a light film. it gets the exhaust out and away from the fuse instead of running into the airstream around the plane.
As far as oil getting into the balsa and ruining it. It CAN happen but if you are careful you can avoid it. Basically you want to make sure all exposed wood, eg the firewall, is fuel proofed. I prefer using thinned down epoxy to fuel proof but there are other methods. That and making sure your covering is well sealed and not peeling and you'll be fine. At the end of the day wipe the plane down with windex and some paper towel and you're good to go. Actually i use washer fluid for autos as its cheaper and works just as good as windex.
I fly both electrics and nitros and am planning on adding a gasser to my hanger soon too. Each has their own advantages and disadvantages. I love them all and can't say any are better than the other.
As far as oil getting into the balsa and ruining it. It CAN happen but if you are careful you can avoid it. Basically you want to make sure all exposed wood, eg the firewall, is fuel proofed. I prefer using thinned down epoxy to fuel proof but there are other methods. That and making sure your covering is well sealed and not peeling and you'll be fine. At the end of the day wipe the plane down with windex and some paper towel and you're good to go. Actually i use washer fluid for autos as its cheaper and works just as good as windex.
I fly both electrics and nitros and am planning on adding a gasser to my hanger soon too. Each has their own advantages and disadvantages. I love them all and can't say any are better than the other.