Recent content by Andras

I'm gonna repost two videos by Greg. One is turbo vs Supercharging, and the other is power recovery turbines. At 36 minutes is a direct comparison chart between the systems on a R2800. turbocompounding I lied, a third video on the best supercharging system on a Corsair

old video on the power of the turbocharged Allison

If you scroll down to Chapter 14, the Hispano entry, there is a really good explanation of the whole US Hispano issues here https://ibiblio.org/hyperwar/USN/ref/MG/I/MG-5.html

Just in case anyone wants a not-lego P-38 for Christmas https://www.amazon.com/COBI-Historical-Collection-Lockheed-Lightning/dp/B09R9SG4XL/ The F4U/AU-1 Corsair looks pretty sick also.

Another cartridge to consider is the .250-3000 Savage. 6.5x48 with an 90gr bullet at 3,000fps (or 115gr at 2800fps) It's based on a shortened .30-06 case. An interesting coincidence is Savage has the patent on box magazines until 1942.

Greg references that report extensively in his first video on the P-47. He says that Republic apparently used it to refine the P-47 design as they fixed all the problems noted in the P35. That is a P-35, not a XP-41 in the report. starting at around 6:30

Modernized Long Beach with 3-4 VLS arrays. 2 fore, 1 mid, 1 aft.

Laid down in 42, they wouldn't have joined the fleet until 46. OTOH the same slip can turn out 2-3 essex class per hull in the same time. You aren't trading three Alaskas for two fast BBs, you trading the two fast BBs for 4+ Essex class. CB-2 and -3 jammed up a 900ft slip from 2/42 to the end...

You could probably increase the MV with a longer barrel, it was 20lb lighter as it was. The Japanese 20mm cartridge did fire a weak version of the H-S 404 cartridge, 20x94 vs 20x110, due to the weaker steel used: 29,000j instead of 47,000j. Stronger action allows a higher MV. An article here I...

There's a good article on the H-S 20mm in US service at this link. https://ibiblio.org/hyperwar/USN/ref/MG/I/MG-5.html Scroll down to Chapter 14, at page number 574 for the beginning of the US service discussion. (the link begins on 495 so you don't actually have to scroll 574 pages!)...

Since we bumped it, have a 1780hp Allison:

Here's a video on turbocharging vs supercharging in WWII. skip to 36:00 for a direct power comparison for the P-47 turbo vs F4U supercharger on the R2800

Greg's Airplanes and Automobiles channel on y/t has started a P-38 series like the videos on the P-47 he did. It may be of interest. Part 1 Part 2 His 8 part P-47 series is really in depth and y'all would probably like it.

For people interested in the subject Here’s a 587 page pdf history of the US Armor branch from WWI to the end of WWII. http://cdm16040.contentdm.oclc.org/cdm/singleitem/collection/p4013coll11/id/1663/rec/23 from the Forward: "Dr. Robert Cameron’s Mobility, Shock, and Firepower: The Emergence of...

Sorry for the very late bump, but this video just posted about the P-47s range and the influence of the Bomber Mafia on US fighters. It's an hour long. In short, USAAF higher command at first prevented the development of drop tanks, and then, despite a working 200gallon DT available from Jan 43...