Rosster,

Thanks for the feedback. I have been following a lot of the TF builds including Tubigs so I am adding up a lot of ideas. I just ordered some new 4-6lb sheeting to try and keep the weight down and I am planning to glass and would like to keep it around 10 pounds but ideally less. The prototype was 9.5 pounds but I think it was monokoted. I am thinking about using seperate servos for the flaps and using the space in the center section to relocate the air tank and maybe the valve/servo setup. This would also simply the air system setup. I would just need to connect the servo for the retract value when I put it together at the field along with the leads for the ailerons and flaps. I also like the idea of of a few less links in the air system which usually means less chance for failure (KISS principal).

I am afraid the 82 won't be enough weight as you mentioned so I am thinking the 91 may be better. The 82 fits better in the cowl and I did have Keleo exhuasts in the back of my mind...haha. The 82 gives more room in the cowl for that but it may be possible with the 91 as well but only if Keleo will build one for this size ship. I haven't called him yet. I do like this idea though because I could then think about putting the battery where their special muffler is mounted and push more weight forward. A scale muffler would also push more weight forward, which could be the difference between a 10 and 11 pound plane and more enjoyable landings. Gotta decide on an engine first but you are reading my mind. I may talk with you about your engine/header/muffler if I go that route but I like the sound of a four stoke. I already have the robart retracts and struts, etc. and have docs on the way from Banka so it is coming together. I love the Spit and if I can build it light I think it will be a great first warbird. I have their T-34 kit and that will be next and then maybe something larger after that. Still a lot to learn. Thanks!