Is it possible to build a (reciprocating) internal combustion

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Doubt it otherwise it would of been built by now. ICE's don't have the top end grunt needed to go that fast which is why planes don't use them either.

The wheel driven record is held by a GM powered car.

perhaps

https://en.wikipedia.org/wiki/Mercedes-Benz_T80
they had a speed target of 750km/h back in 1939, too bad it was never run.

>>17208770

>439mph on 368cui

Should be supersonic running 642 cui or more, and tonnes of shops make them that size over the country

>>17208770
Are you referring to that Saturn Ion?

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>>17208828
>44.5 litre inverted v12
>3000 hp

NO REPLACEMENT FOR DISPLACEMENT

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>>17208717
No. You'd need ridiculous amounts of engine to get up to that speed, so you'd be loading on more and more weight to get only a little faster. It'd even out fairly quickly, so there hasn't been a wheel-powered land speed record in decades.
There's a reason the convention is to pull the engines off a fighter jet one or two generations behind and stick them into a pointy car.

Even propellers can't go that fast; the fastest propeller-driven aircraft can't break the sound barrier, and it needs four fuckhuge engines and eight propellers to even get as fast as it does.
The crews and ground crews are all deaf, and it causes hearing damage in intercepting fighter pilots at altitude. Way high up where the air is thin, it still manages to produce that much sound.

https://m.youtube.com/watch?v=DWMPe3wF9jQ
not under its own power

>>17209449
The problem comes down to the ingestion of supersonic airflows by the engine, or in the case of prop driven planes, that the tips of the propellers go supersonic before the rest of the propeller / aircraft and destabilize it.

>>17208861
the power creep is exponential, not linear.
you'd also have extra weight from the larger engine and gears needed to each that speed, adding to wheel friction.

>>17209449
The Bear is a turboprop, so a jet engine with a prop. Piston engine aircraft top out at 500mph.

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>>17209486
>>17209449
the issue with the sound barrier with propeller planes isn't ingestion of supersonic airflow. that can be solved with clever ducting. the issue is when the prop blades enter trans-sonic speeds at the tips. since the blade is faster at the tips, the shockwave from the tips usually shatters the prop. if you make a strong enough prop (which is possible), you still have to deal with a continual, rotating, sonic boom in front of the plane until the shaft end of the blade goes above trans-sonic speeds.
they tried experimenting with the XF-94H "Tunderscreech". It had fantastic acceleration due to the variable pitch prop, but was unstable to the point that test pilots refused to fly it. because it changed speeds with prop pitch rather than engine speed, the blades were partially supersonic even when idling on the runway. the shockwave tore up the runway and was strong enough to throw a man. the crew often got nausea and headaches being near it. It was the fastest prop plane ever made, but it paid a huge cost for that.

>>17209572
Holy shit this sounds awesome

>>17208770
>planes don't use internal combustion engines.

>>17209707
They don't need combustion, just heat. Jet engines power by nuclear reactor exist.

>>17209707
Supersonic ones don't

>>17209909
Yes. But that was not the statement.

>>17209909
yes they do. Turbines are ICEs. don't confuse ICE with reciprocating engines.

>>17209572
>test pilots wouldn't fly it
I volunteer. It would be the manliest thing I've ever done, and dying while attempting it would be almost as good.

>>17209945
there were only two prototypes built, one was stripped and used for a museum. the other was scrapped and the engine was salvaged for another testing program. If you want to fly one, you have to build it.

>>17209942
True. I should have said piston engine