Comments by "Orbital_Inclination" (@Orbital_Inclination) on "Electric-powered Stol aircraft undergoing experimental flights with US Navy" video.

  1.  @Iain1962  it has a hybrid-electric system. The 'hybrid' bit of that would indicate it does indeed have on board generation capacity, and there's nothing to say this couldn't be used on the ground
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  2. Most modern aircraft are heavily reliant on electrical systems
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  3. It will generate power on the ground thr same way it generates power in flight, or use a GPU
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  4.  @Iain1962  yes, that's exactly what a hybrid system is. A small fossil fuel engine of some kind providing electrical power generation. As for your second point, to charge a battery, you need to be generating power in the first place.
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  5. It's lb, not £
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  6.  @trs4u  this is a US aircraft, and they tend to work in lbs regardless of where they operate. I've flown a range of aircraft and had to deal with fuel, for example, in lbs, kg and litres interchangeably depending on manufacturer
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  7.  @trs4u  British narration about an aircraft that uses lbs, on a US video hosting website for a global audience, so its perfectly reasonable to use either metric or imperial
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  8. Look at the bots all talking to each other 😂
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  9. It has a fossil fuel engine in the nose, hence the massive exhaust on one side
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  10.  @Iain1962  it has a hybrid system that generates electrical energy. GPU - ground power unit. Sometimes a diesel generator or sometimes just a big battery
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  11. ​​ @Iain1962 hybrid systems are far more efficient, as the turbines are generally smaller than they would be for direct thrust, and can run constantly at an efficient RPM. The aircraft will have batteries like any other aircraft with any kind of electrical system does, as redundancy if nothing else Running a small turbine on the ground is what all airliners do, hence why they all have APUs, which is essentially what the turbine in this aircraft is, as it doesn't directly provide thrust, just electrical power
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  12.  @Iain1962  no, hybrid systems are more efficient because the fossil fuel component works far more efficiently and the losses due to power transmission don't come close to negating that. Obviously it cannot generate power without fuel, that's literally how a hybrid system works. Its still a big improvement over other aircraft of this size which would need to keep a main engine running at an inefficient RPM to get ground power
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  13.  @Iain1962  you seem to think that any burning of any fossil fuels is some kind of gotcha. It's not. Hybrid systems are still more efficient for the reasons I've outlined, even with the energy conversion losses. Direct drive turboprops waste a hell of a lot of energy as heat and noise, and need one engine per prop. This system needs one far smaller turbine to run 8 props, providing far better STOL capability than could otherwise be achieved. No one claimed it was 100% emission or fuel free, its just an improvement over existing tech in that regard. Don't let good be the enemy of perfect.
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  14. ​ @Iain1962 It doesn't make any such claim, it just says it generates power on thr ground, which it does
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