Yes, if you call it that. It's a foot-launched glider. The carbon dragon lands on a wheel, the magic dragon (I think - it's been a while) lands on a skid. The magic dragon is lighter. You'll have to add more weight for a wheel (maybe) and more weight for engine instruments.Question? Did the 140lbs include instruments and gear?
Think about it for a second - you're talking about removing HALF the weight from one of the lightest rigid airframes in the world. It's a VERY light airframe. This plane was planned by people who weighed each part to the TENTH of an ounce - and you're going to remove 70 lbs - ONE THOUSAND+ ounces.
The weight's just not there to remove.
You say you'll get the weight from the wing. The wing is designed to weigh 68.6 lbs. That means you can THROW AWAY THE WING from a plane that is SEVENTEEN INCHES WIDE at the seat and you STILL are over your limit. Of course, with no wing, your aerodynamic profile will suffer somewhat. :gig:
BTW, you can't just ad an engine without an engine mount. That energy has to be transmitted to the airframe somehow. Ooops, more unplanned weight!
Are you beginning to grasp just how impossible your 100lb high-AR high-performance plane is?
Again - WHAT are you removing? It's already one of the lightest airplanes in the world! You keep saying you'll "remove weight" but haven't offered anything concrete - just your opinion that skilled designers & builders in front of you have been ignoring one of the MOST important factors when building for years. I don't buy it.Put the BD-5 on a really serious diet.