The reasoning behind these hybrid configurations is to have high output capability at the same time minimizing fuel consumption. We prototyped and tested many technologies in the past due to the business were in, we sell Fallout Shelters/Safe Rooms.
www.northeastsheltersystems.comOver the years we found that simplicity and redundancy is imperative for survival. The backup 14/1 - electric motor design allows use of the battery bank and is resilient from a HAEMP (High Altitude Electromagnetic Pulse) compared to the highly vulnerable 6/1 - INVERTER design. Take a look at my web site, it will show the radius of such a device:
EMP Protection Electromagnetic Pulse
We want to offer our customers a reliable and durable power system that can be repaired by almost anyone in time of crisis. This is why we are leaning towards the proven old technology. We are also focusing on just the 6/1 and 14/1 at low speeds not the twins and the singles at high speeds. The Idler gear is the weak link in these engines and all ours will have Georges bronze gear installed. Lister Type Gears
The twins gears have twice the stress load per given speed than the singles, so we use a Hybrid design to match the twins high output capability for short periods of time all while maintaining maximum durability from the low speed prepped singles. Also with a light load applied the twin could "wet stack". Don't get me wrong, I LOVE the big twins but they consume more fuel and in our application the gas stations might not be open for business for refueling.
Regards
Diesel Guy