Comments by "Titanium Rain" (@ChucksSEADnDEAD) on "Why F-35 Don't Fly During Thunderstorms" video.

The OBIGGS has been sort of an ordeal because after the system was redesigned, a maintenance check found that the tubing got damaged so they put the restriction back in place. The video did address it but it was easy to miss. The damage in the Japan incident was not fully explained but the implication was that because the F-35 isn't a huge metal cage like other aircraft, there was no "Faraday protection" so there was damage even though they were still good enough to land.
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@akita2438 I don't know if the redesign had a problem because it seems the issue was somewhere else, in the tubing. I'm not up to speed with the investigation and what caused the tubing to get damaged. There's no "oversight" per se, if you have too much exposed metal skin it stops being a stealth aircraft. The fact is that when non-stealth aircraft are pitted against stealth in exercises they get the floor wiped with them. There's just too much at stake to prioritize lighting protection when the aircraft can be repaired if hit by lighting, but there's no repair if they get split in half by a missile.
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@kalbing I'm not saying it was a missile but they're not made to make a "hole". They either use fragmentation, in which cube and bowtie shaped pieces of metal are shot out like an omnidirectional shotgun blast, or continuous-rod warheads. The continuous rods are interesting because they're long rods of metal welded at the tips in a an alternating zig-zag, so when the warhead explodes the rods separate but remain joined at the tips, forming a circular "concertina". When the stretched circle impacts aircraft, it slices them through.
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Not sure what the alternative is. You do realize that if you're going to call it a drive shaft, then all jet engines have drive shafts. The turbine stages are connected by shafts to the compressor stages. All that's happening here is a gearbox that takes that high RPM turbine power to a fan. Just like 21st century cutting edge airliners have turbofan engines where the fan is connected to the jet engine shaft.
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@freezee7547 Additional jet engines are 20th century. That's the way it was done in the past. Jet engines are not very thrust efficient at low speeds. If you want to double the mass of gas used for thrust, you only need to double the energy input. If you want to double the speed of the jet exhaust, you need to quadruple the energy input - because velocity is squared in the kinetic energy equation. This means that jet engines are most efficient at cruise when velocity. When you have an hovering aircraft (moving slow) the jets are dumping supersonic airflow to keep it in the air, and so the energy use is very inefficient. A fan moves a larger amount of air mass with less energy, so you get great thrust with minimal fuel consumption because it's being driven by the turbine stage of the main engine.
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@freezee7547 "how about the reliable and maintenance when they are the keys for those in aviation?" - Jet engines are more maintenance intensive than a shaft and fan. "Or find the mechanics every time in war zone" - They'll be at the base waiting for the aircraft?
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