[RightWhale]

With the tail raised at 100 knots, the airplane flies nearly ballistic. What about when it returns from 100 kilometers? Will it be so controllable at a much higher speed?

[Leroy S. Mort]

Will it be so controllable at a much higher speed?

You have my personal guarantee (laughing.....).

[WestPacSailor]

Will it be so controllable at a much higher speed?

Nope, drops like a rock. Same principal as the early capsule reentries. Gravity does all the work.

[irv]

Will it be so controllable at a much higher speed?

From the article:

The body attitude initially pitched up steeply as the tails continued to fly straight, then slowly dropped to near horizontal as the flight path fell.

I would worry very much about stability at higher speeds. Still, it's a promising start.

[Moonman62]

With the tail raised at 100 knots, the airplane flies nearly ballistic. What about when it returns from 100 kilometers? Will it be so controllable at a much higher speed?

I believe the speed at altitude will still be relatively slow. Remember, they are going into space, not orbit.