747400sp From United States of America, joined Aug 2003, 4017 posts, RR: 2 Posted (8 years 10 months 2 weeks 1 day 13 hours ago) and read 8066 times:
The RB-57F was powered by two TF 33 turbo fans and two J 60 turbo jets. The RB-57F was not big plane, so I would think the two TF 33 had enough power to get the thing off the ground, so why they need those two J 60?
Ptrjong From Netherlands, joined Mar 2005, 4119 posts, RR: 17
Reply 1, posted (8 years 10 months 2 weeks 1 day 12 hours ago) and read 8052 times:
According to my 1974 The Observer's Basic Military Aircraft Directory, the auxiliary J60s were not always carried. Their mountings could also be used for tanks or other equipment. So, the TF33s could indeed get the thing off the ground even with extra weight. I guess the auxiliary engines, like the huge wingspan, were needed to get the thing to 75,000 ft and keep it there.
The only difference between me and a madman is that I am not mad (Salvador Dali)