I was at Barksdale in 1979 flying the Vulcan during GIANT VOICE 79, the SAC Bomb/Nav competition. Also on the base were some AFRES A-37 Super Tweets; talking to some of the pilots over drinks in the O-club (served by Mister Charles Baker*, of course!), I asked if there was any chance of a trip. They tried, but 'higher HQ' said no
. But I did get a trip in a B-52G, which was...interesting!
The AFRES guys told me that the main issue they had with the A-37 was that on hot days in Loozyana, even the 11600' runway wasn't long enough when carrying all those drop tanks - if they lost an engine during take-off there wasn't enough stopping distance as the A-37 brakes weren't particularly good. "T-38 engines, T-37 brakes" was how they described it.
*Charles W Baker passed away at the end of 2017 at the ripe old age of 86. RIP. He will be sadly missed by the many thousands of people who he served at the O Club during the 60+ years of his service.