There are two diffrent versions of the OS .50 SXH. One is the Hyper it cost $208 the standard cost $180. I have the standard version with ZERO Ballast to get the C.G. at 5 3/4" back. The airplane weighs 5 lb 14 oz. Vertical pull is awesome. The engine is very reliable and if you would like to have a 3-d contest with what ever you can come up with Bring IT. This setup will kick the crap out of any other overpowered over wing loaded airplane. These threads are something else. A person ask what engine to run and then they get an answer that doesn't suit what the person wants to here. Why ask if you have allready made up your mind to run a Chinese engine that will cost you your airplane. Or it may not cost you the plane but you will never hover below 100 feet due to the fact your engine may die at any time. I know I'm making a lot of people mad but there is a reason OS has been in business so long. So go buy a U-can-do .46 put that brick on the nose/ Blubird servos in the tail and run the cheapest fuel you can find. Let us know how it turns out. Oh I forgot 1500 Mah 6 volt Nicad in the rear to balance it out to 8 lbs. Great plan. Let me know where the fly off will be. I cover most of the country in one year. I'm sure we can arrange something.
Jason Danhakl