Our fleet is all 200As some have the T/O warning some don't. Varies by original customer. The AUX tanks have various layouts, I've seem some fuel capacities approaching 70,000#s on 200As. The 100 in general was a great airplane, but a 200QWRE at 130K#s is as close to a rocket ship as you can get I think. These days the 200s are the only things that are economically viable (and even then in niche markets).
The 100 might be very different from the 200s in terms of the APU fire warning system, but it sounds like the APU must've generated a bit of heat in there for the loops to pick up on it. On 200s at least the detection should have caused an automatic shutdown of the APU (provided it was armed, which is default). I haven't engineered on 100s (just 200s) so I don't know the FE AUX panel layout on those.
Last edited by aviatorhi; 17th January 2011 at 05:40.