the main UL phactor=Power/ Weight...Hybridising aircraft is adding Complexity(ICE) to Simplicity(E). C+E=2C
Looking at it differently. If you want electric (because the heart wants what the heart wants) and battery energy density sucks, then hybrid.I know many of you have been waiting for me to sound in on this
For me - Hybridising aircraft is adding Complexity(ICE) to Simplicity(E). C+E=2C
Ok - I am not a math person.
But I wholly believe one is better off without the other when it comes to UL aircraft for most cases. Go ICE if range is your thing. You just wanna go out a few mornings/evenings a week for an 45min then E is the ticket.
Exception to every rule!
The example in the vid was interesting - "use E to take off and ICE to cruise". To me, why put in the Epower for takeoff to complicate things with extra weight from the batteries for "take off power"? Epower for emergency back up cruise maybe if the ICE fails - thus if you dont have the height if the ICE fails to do a turn around back to airstrip or to get to that field you just did not have enough glide to make! Which makes me wonder on the stats for UL crashes -- more due to a control failure or power failure?
Lots if interesting stuff happening non the less in the aviation world.
Anyway - like Kuiil would say - "I have spoken"
I've mentioned before that eliminating constant-speed props isn't an option for any airplane where a wide speed range is desired. Propellers, whether they're driven by an ICE or an electric motor, have a narrow useful range of RPMs. For example, run your 172's engine at idle (650 RPM) and it probably won't even taxi. Double that to 1300 and it will taxi really fast. Add only 1000 RPM to get 2300 and it takes off and climbs. But try to increase that RPM to, say, 3300, by repitching that 76" prop, and you don't gain anything since the tips are now supersonic and the engine's power is consumed mostly by drag. If we use a smaller prop to get the tip speeds down, we lose propeller efficiency and takeoff and climb suffer.Flip the problem on its head. With the reliability of electric motors, and the life of electric motors, the ability to delivery max power at pretty much any RPM. They are ideal for converting energy to thrust. You can likely eliminate constant speed props...