The plane weighs 8lb 1oz dry. there are three more at our feild with 91 in them that weigh 7lb 9 oz dry but I only have a 8oz fuel tank. so the flying weight of mine is only about 4oz more than the others. I got the engine down to 2lb 6oz with muffler and ignition. Here is a pick with cowl installed. I have about 20 flights on it with no problems so far.