Nah...
He definitely spoke about a vertical launch facility.
Even if he didn't, if you accellerated down the runway to Mach 0.9 then hit a 200 foot radius curve to "ski jump" you upwards, the lateral g forces would be equally killing
(Centripetal/fugal accelleration = V^2/R)
V=300 m/sec
R=60 metres
A= 90,000/60 = 1,500 m/sec^2 = 150 g's = strawberry jam