Pratt and Whitney R-4360 Wasp Major - AngeTheGreat's Engine Simulator

This massive 4362 cubic inch, or 71.48 liter, radial 28 made of 4 banks of what are basically their own radial 7 engines joined to a common crank and block was the engine used in the Boeing B-50 Superfortress. It produces a tectonic level of power, about 2650 horsepower in its lowest power form as the R-4360-4, naturally aspirated and the earliest version. Later versions made over 3000 horsepower and when supercharged with "power recovery turbines" in the R-4360-51 VDT as in the B-50 they made 4300 horsepower. It turns out the old version I made was quite janky with the cam and spark timing, and I did a strange thing with the crank angles that made it all even harder to figure out. So by deleting perhaps a few hundred characters worth of garbage the engine runs far better now. It makes beyond 6000 pound-feet of torque and I did the same "propeller simulation" as I did with the radial 12 aero engine but tuned for larger props and approximating an airspeed nearing 400 mph, which incidentally is near the 394 mph top speed of the B-50 Superfortress.
The catalog is working again:
catalog.engine...
Even so, also my Drive folder:
drive.google.c...
#angethegreat #enginesimulator #b50 #superfortress #waspmajor #prattandwhitney

[@cloudtaker633]

Ah yes, P L A N E

[@linkfreeman1998]

Can u make a sim of the rather average P&W R-1830? I mean, its really common u know.

[@Avetho]

The video will be uploaded shortly :P

[@-SBR4Z-]

What would this sound like if it rev to 10k....?

[@Avetho]

I would love to do that, but if this beast revs about 1k more than it does now it will break the simulation. Not to mention the very large stroke of the engine prevents it from reaching those speeds as I've learned by trying to brute force JP's Trans Am engine to F1 rpms and failing to get more than another 1500 rpm or so before the flame front can't keep up with the piston XD

[@-SBR4Z-]

Oh ok!

[@mizake01]

@@Avetho can the simulation assume proper combustion, flame front, etc. to allow 10K rpm? no one expected chevy to make a 8.5k-rpm 5.5 ltr engine, a 10k-rpm v12, v10 from cosworth for aston, red bull, 12-rotor Wankels, and so on. but, there was a market, a demand, and Willpower. existing designs can overcome hurdles with time, patience. so, imagine a near future where hobbyists, experimental aircraft builders, financiers, and others use a 10K-rpm scaled-down 4360 for THAT TORQUE!!!!, perhaps in a hybrid electric configuration. excuse my excitement. but, what if? we have CAD; we have CNC; we have additive (3D) manufacturing; and who knows what'll turn up in the next 5, 10, 15 years. For example, i remember "Impossible demands" from governments to war-time industries and how those industries responded. in 1939, taking just about 5 years to invent AND mass produce a 4360ci motor with 6k-lb-ft of torque was unimaginable, but by 1945 . . . i'm 50, a teacher, and i learned on Pratt-Whitney radials in the miami public school system's high school powerplant tech program at George T. Baker in the early 1990s. I DID NOT imagine I would discover this animation on the interweb tubes 30 years later!!!! WOW. You make the future bright. Thank you.

[@ashleydorsey2538]

How many cylinder banks are there...

[@Avetho]

Way too many. In other words, 28 individual banks that make the program take a tectonic amount of time to load because its not designed for this level of mechanical insanity. It was hard but oddly kinda fun to make this monster XD

[@ashleydorsey2538]

@@Avetho and i thought the engines i made were crazy in engine sim (I'm Lioneltrains203)

[@mulletbubbles9909]

Supercomputer?

[@Avetho]

Not exactly, I only have a Ryzen 5 with 32 gigs of ram and a GTX 1660, its just that Ange's latest version of the program has greatly improved in regards to resource efficiency, so larger engines can be simulated without running out of audio processing time, but even so 28 cylinders on my system needed 2.2 kHz sim frequency which is extremely low compared to the default 10 kHz. I maybe could've squeezed 2.3 kHz out of it but when I tried I had a lag spike that upset the very careful balance I needed to maintain and the sound got very broken for a little bit.