8 ms·
It sounds like it's electric powered. As much as I love brushless motors, I think a model of that scale and quality would have deserved actual jet engines.
by Ecco 5mo ago
It sounds like it's electric powered. As much as I love brushless motors, I think a model of that scale and quality would have deserved actual jet engines.
- wazoox 5mo agoAFAIK the only existing small jet engines for RC planes are much too small for this one.
- ncrc74 5mo agoThere are certainly turbines available that could power the model. He chooses not to.
- jcims 5mo agoThey've been scaling these things up over the past decade. The JetCat P1000 can exceed 200lbs of thrust. What they really for this kind of build are RC turbofans, which are extremely uncommon. This thing puts out over 300lbs of thrust at full throttle: https://www.frankturbine.com/en/FT1500.html https://www.frankturbine.com/en/FT1500.html
- ncrc74 5mo agoTyler Perry owns the airplane and the property. He has said that he does not fly turbines due to the fire risk in a crash. His property is surrounded by forest. If he were to cause a forest fire, the negative publicity could have a major impact on his career.
- jcims 5mo agoThat property is gorgeous and Tyler pulls out all the stops for his builds. That channel (Ramy RC) has quite a few of them.
- bombcar 5mo agoThe closeness of the trees to the runway kept giving me extreme pucker ...
- gosub100 5mo agoThank you for inadvertently answering a question I had, which was who owned that estate. I'll preempt future comments that lithium batteries can catch fire too. I agree with that statement but still think the risk is mitigated by not going with gasoline fuels.
- ajross 5mo agoRC-scale tiny turbines are sort of a boondoggle. They are loud, dangerous, and quite frankly reliability disasters. Expected component lifetimes are in the hundreds of hours, most folks overhaul them every 20-50 hours of use, and they fail in the air with shocking regularity (just check youtube). It's one of those "impressive that it works at all" kind of things. If that's what you want to see in the air, then do it. If you want to watch your one-off custom plane that represents hundreds or thousands of hours of labor fly, you push it with a fan.
- rwmj 5mo agoIs that a physics thing, or just jet engines are hard and RC budgets aren't very big?
- dijit 5mo agoI wonder if it's not a: "maintaining this kind of engine is a heck-of-a-lot of work and is why there are so many aviation regulations and the reason engine overhauls are forced and cost millions-of-dollars" kind of thing.
- lstodd 5mo agoMostly physics. It's hard to do small jets, mostly because small things get too heat-stressed I sorta watched a guy trying to build a hoverboard out of 50-kgf jets, it was crazy, hilarious and didn't go anywhere because flying a backpack of kerosene on four totatally unreliable jets ain't much fun in the end. They also cost about $5K each at the time.
- dylan604 5mo agoJust yesterday, someone posted a link to a Veritasium video[0] explaining how a jet engine internal temps of 1500°C work when the components have a melting point of 1250°C. I couldn't imagine doing that at a small scale by hobbyists. [0]https://www.youtube.com/watch?v=QtxVdC7pBQM https://www.youtube.com/watch?v=QtxVdC7pBQM
- JKCalhoun 5mo agoIf it had been gas-powered motors, I would have agreed with you. The electrics sound close enough to my ear like actual jet engines though.