ChristiaanJ
Two thoughts
Firstly, the Boeing Airfix kit. Interesting article but I hope that (a) it takes well less than 250Kva from the APU to start an engine as, currently, GPU's only put out 180Kva continuously with not a sensationally long peak load time. Like the big prop, its all about getting the big fans at the front moving fast enough. (b) If the engine needs more than 250Kva and the APU is u/s, wot then, but I suppose this has all been thought of.....
Secondly, 112 volts and the Canberra. Cartridge and IPN starters for sure. BUT there has been talk of a DC start system but based on 28V DC,
so no joy there
In the light of developments and the way the 787 is planned electrically, its 28/200volts from now on in...unless someone else knows something different........