Quote Originally Posted by Van View Post
A technical point-

- re: one fuel - Diesel motorcycles are in production and use. I suspect that if you can make a diesel motorcycle, other small diesels are not to challenging, technologically. Given the tremendous logistical simplification from a single fuel, I think you're on shaky ground with this point.
The HDT diesel motorcycle is up around 300kg/650lb, used as a convoy outrider, base transportation etc.

My company has tested our 57kg/125lb gasoline motorcycles with the NZ Army (Infantry and SAS) and had a request for quotation from the US Army.

Applications: recon, special operations, mobility over tight, broken terrain and obstacles, transportability on mother vehicles.

Unfortunately it is impossible to reduce the size/weight of a diesel engine to anything much less than the HDT scale.

So the choice is simple given the current and foreseeable technology: allow for alternative fuels to gain additional capabilities, or go without.