747400sp From United States of America, joined Aug 2003, 3301 posts, RR: 2 Posted (7 years 5 months 3 weeks 3 days 20 hours ago) and read 7076 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, 3883 posts, RR: 19
Reply 1, posted (7 years 5 months 3 weeks 3 days 19 hours ago) and read 7062 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)