ORIGINAL: Troy-RCU
I remember that article for the twin motor delta with independant ignitions. I was suprised to see AMA Model Aviation posting that article but it is ok within their guidelines. Was tempted to build it.
I had built a "D" powered rocket glider many years back that had its debut at the World Famous Rabbit Dry Lake. It was basically a very lightly built glider I later flew on the slope in light lift days, but I found the "D" motor a bit anemic for me. It launched from a ramp and climbed at a 45* angle to a not so high altitude and the motor ejected itself (by design) out the back to loose unwanted ballast. It was a fun challenge but the plane was more fun on the slope. If I did it all over, I'd crank it up to an "E" and build lighter....
FAI competition RC rocket gliders (S8E) are pretty amazing performers. On a long burn composite E motor they can get up to about 1000' altitude. They are pretty much like 2 channel polyhedral 0.8 - 1.0m span RCHLG's in performance, because that's pretty much what they are. With the low cost flight gear available, one can easily build a sport D12 or E9 boosted glider that can get to several hundred feet altitude and soar well. If you're interested in RC rocket gliders, you might want to take a look at the line of reloadable motors Aerotech offers for these types of models - they have 24mm D and E and 32mm F and G reloadable systems specifically designed for RC rocket gliders. These can get you some serious performance.