Mi s sile s/Spac e Inte rview
To get back to the Mach 4.zs and Mach l0 aircraft, what kind of
our studies indicate that airplanes with projected fueled propulsion systems wouldntt rneet the tesired chemical of extreme range without introducing the compricated requirement staging. The solution, we feel., to l-ong-r"ogJ aircraftcolcept of the atmosphere 1ies with nuclear power. In the Mach flying witJrin 4,25 version, two nuclear rarrrjets would Power it during cruise with system used for take-off and. three auxilialy units for an auxiliary boost randing. The crew would 6e in a compartrnent shielded from tJre reactor, t&e electronics and armament payload.
rn the Mach r0 model where rong-range is not a reguirement, we combine conventionar. ramjet and turbojet power prants, latter being used for take-off, landing and aciel.eration to the Mach 3, when the ramjets take over.
rt appears to be feasible to,solve the high temperature problem by flying at high artitudes to reduce the heating rate and a rnulti-layet st-ructure with high temperatur.:iosulated. by designing by radiation. w'e are arso considering other techniques skin cooled be applied during transients such as tlanspiraiio'coolingwhich would and -----'6 e'ru ablation technigues. Do we face anv rnaterials lac
No, I do not think so. Io my o-pinion, our present structural engineering aad rrretaliurgy, t"g.ir., withknowledge -of the technological' advances that appear to b. comlrrg, #ould be sufficient to maintain our progresse r donrt mean to minimize the problem -much work remains to be done -- but it is wer.r within tl,e reakn of technical achievernentn
Missiles-Space Magazine - October 1961