RE: Nitro models pusher Bobcat?
Bills,,,,I'm really not sure but my total weight ready to fly is 7lbs 12oz. I am using Robart retracts (older ones with hard plastic housing) which is lighter than the all metal retracts. I could lose a oz. or so by getting a smaller air tank. Some mods to the firewall former were required like taking out the factory installed rails and putting in a plate that allows the retract to sit lower in the plane. This allows the wheel to retract inside the plane. I am using the Magnum 52 engine with a Weston pusher pipe. This engine turns 16,500 with the stock pipe and will easily turn 18,000 plus with the weston pipe. I am really please with the way the jet went together and plan on the maiden flight soon after the new year.
My first attempt at balancing the plane shows it to be nose heavy with the battery up in the nose but this was trying to balance using my fingers and I don't know for sure its nose heavy.
I have gone over all glue joints that I could reach. The glue and the coverage from the manufacture is not good. I have the Bobcat 25 that I am flying with a OS32 and its a great plane to fly so I am expecting the 52 to fly even better. With the weight under 8 lbs. and the great motor, I am expecting level flight speeds to be over 100 mph. Other than the mod for the nose retract, I built the jet stock. The mains fit perfect and work fawless. I'm using 3/16 wire for the mains and 5/32 for the nose and when they are in the up position the jet looks really clean.
I will post some pics now that I'm almost finished.