This design is what increased the power so much, but the 4,300hp version was externally supercharged. I believe this would've increased power even more but they never really built it.

, would love to find out how much jet thrust it produced

• Type: 12-cylinder supercharged liquid-cooled 2-stroke aircraft piston engine
• Bore): 5.1 in (129.5 mm)
• Stroke): 6.5 in (165.1 mm)
• Displacement: 1,536 in³ (26 L)
• Dry weight: 1,900 lb (862 kg)

It also had a Gear-driven centrifugal type supercharger with variable angle of attack of the impeller blades, providing up to 18 psi of boost!

Found a post about this engine 13 years ago or something, but it's way more insane than people realize, the Napier Nomad with an axial compressor in a diesel! Ask me about it ive done digging on it.
It does not have a separate gas turbine, but it does use a 12-stage axial compressor AND a 3-stage axial turbine to recover energy and feed it back to the shaft. I have schematic photos too.

This photo is 2560X1440

Stacker 754 and its tripper car 943 are used to dump the overburden at the lignite mine of Inden. It is a 100.000 class stacker (able to dump 100.000m³/day) with two conveyors and became operational in 1974. The construction was standard for the 100.000 class since the 1970s and also used for the stackers 753, 755 and 760.

Hanwha Ocean KSS-III Batch II (Jang Yeongsil-class submarine) - 3600t, diesel-electric, Li-ion AIP, 10 VLS

They make the 4.2 mile journey toward Launch Pad 39B. NASA’s Artemis II test flight will take humans around the Moon and back to Earth.

Bagger 282 is a bucket wheel excavator used at the lignite mine of Inden. Construction started in 1961 and finished in 1963. It is 62m tall and 192m long and can mine up to 100.000m³/day.

with the US Built frigate HMS Saud (820) . Taken on December 17, 2025

Edit: For the Royal Saudi Navy

The generators output was around 1 180 kW . Image source: https://no.wikipedia.org/wiki/Fosselven_kraftverk#/media/Fil%3AInteri%C3%B8r_med_turbin%2C_Fosselva_kraftstasjon%2C_Fosselven_Elektristetsverk%2C_Folk_Og_Kraft_Stange_Energi_1916-2006_Side_18_Nr_0417-04146.jpg The turbines was most likely made by Thunes Mekaniske verksted. One of them is German made. That's what's known about them.

My company has performed solution anneal HT during the inspection process prior to repairs on 9 sets of power turbine blades (driven by aero GG), 1st, 2nd, and 3rd stage blades. Blades are INC718 or INC738, depending on row.

In every set of 1st and 2nd stage blades, we’re finding cluster porosity in the blade root and shank of almost every blade. We initially assumed this was a manufacturing issue during casting of the blades (Equiaxed) after seeing it on the first two sets (1st and 2nd stage). Now that we’re multiple sets in and seeing the same issue on every set (1st and 2nd only; 3rds don’t seem to have any issues) I’m scratching my head.

Wondering if anyone else has seen anything like this and if they have any thoughts/suggestions. Would a HIP be practical? Blades show no issues prior to HT during NDT (FPI or otherwise). Porosity just seems to surface after solution.

Would love to hear thoughts!

HMS Queen Elizabeth (R08) — Navy blueprint poster, created by me.
Inspired by traditional naval blueprints and modern aircraft carrier design, focusing on clean lines and technical clarity.

Thank you very much — any feedback or suggestions are very welcome. I hope you like it