Salute!
TNX, Engines for good poop'
I, too, think the fan drive shaft could be a factor in Bee emergencies. Depending upon how close to touchdown in landing mode, seems possible you could still revert to conventional flight controls and such. The F-102 I flew a century ago would go ballistic in seconds if the "angle drive shaft" failed. It connected the motor to the hydraulic and electrical system pumps/generators. So Convair added some back up systems to prevent complete loss of control. My trusty Sluf had a RAT for that kinda problem, and my Viper had the EPU whicj ran on hydrazine or bleed air depending if the motor was still running.
I have watched the Stubbies here at Eglin make approaches with all the doors open but not always wind up in a hover as they would on the new Brit carrier or even for a short roll landing on terra firma. So seems an early warning could allow one to land conventionally.
Gums sends...