ORIGINAL: kerklein2
Why wouldn't you be able to hand launch it? I think you could throw 10lbs at 20-30 mph.
Flying wings are extremely hard to hand launch if you have to impart extra speed to them with the launch for three reasons.
There is usually nothing to hold onto but worse, there is no fuselage to help you judge the AOA of the wing, something extremely critical to launch success. They pitch up or down and over in a heartbeat, something to consider if yours has a spinning prop on it.
Trying to run and throw a wing that's got a spinning prop on it is going to be very dangerous.