RE: 101" C-130 arf
The retracts can be fitted later. The are quite complex with four vertical rams on the mains and conventional swivel on the nose. The doors are a work of art, especially the nose!
Flies really well on 30 4-strokes. The tanks are not that big so just powering as a twin with 52s or similar would mean short flights. The length of the engine is important and it has to go in through a small slot/hatch. It's pretty tight in there!
four 30 4-st sound awesome!!