Interesting input Dan. We've bounced about some on the platforms that might host hybred setups of various types & trikes are actually good candidates as are trailer supported setups. Some combinations are going to be hard to configure on some platforms. Trikes powered by electric hubs on both rear wheel and running a small gas engine/alt for charging batteries and cap could really benefit from the larger load platform of the trike and the step through frame could easily be used for mounting of a small gas motor. It's a bit like playing with Legos!I've been wanting to see a series hybrid bike like locomotives and ships use. The gas engine would run at way lower rpms so would be more efficient than having it directly attached to the wheel. It could solely power a battery bank or directly drive an e-hub or center mount motor. This way we can get the range of a gas bike but the instant torque of an electric motor. I think the only problem with it would be size, it would need to be in a sidecar or trailer, otherwise if rack mounted would be too top heavy. Probably best done with a trike.
Proof of concept Ludwig, good use of Utube. That being direct drive and the small engine didn't seem at all strained.I have found that if I can think of a thing, usually somebody has lready gone out and done it. And so it is with small ultralight generator sets.
There's a lot of good food for thought in that thread Dan. I'll require some time to digest it all. Actually my current requirements for power on the sidecar application (reversing from a parking spot etc.) are so basic & minimal that charging every week at home wouldn't be a nuisance at all., but for most power applications, totally powering a bike, trike etc. that would be rather impractical or impossible for extended range cycling and of course my plan to use a lot of heavy battery weight for car balance and control would be a huge negative.