A rebuilt 28 liter Allison V12 aero engine – 1,150 BHP

This is a rebuilt WWII Allison V-1710 V12 aero engine and it is currently for sale on eBay with a buy-it-now price of $37,500.

The Allison V-1710 was the only liquid-cooled V12 aircraft engine developed by the United States to see service in World War II. It powered a host of important aircraft, including early versions of the P-51 Mustang and Lockheed P-38 Lightning.

Quick Facts – The Allison V12 V-1710 Aircraft Engine

  • The Allison V-1710 is a 28 liter (1,710.6 cu in) V12 aircraft engine that first entered production in the 1930s. It was originally designed as a new engine of 1000 hp intended for use in a new generation of bombers and fighters.
  • The United States Navy had planned to use the Allison in its rigid airships, particularly in the USS Akron and USS Macon, but both were lost in accidents before this happened.
  • The Allison V-1710 was built in naturally aspirated, supercharged, and turbo-supercharged forms for various roles. Most were built for use in the Lockheed P-38 Lightning and Curtiss P-40 Warhawk. In total, nearly 70,000 copies of the Allison V-1710 were built.
  • The engine you see here is a newly rebuilt Allison V-1710-35, it is listed for sale on eBay for $37,500 and it ships from Wichita, Kansas.

The Allison V-1710 V12 aircraft engine

The Allison V12 would be one of the great aircraft engines of World War II and it would enjoy a long post-conflict second life, both in aviation and in specialist motorsport roles.

Video above: This is amateur footage of an Allison V-1710 being started up and running at the Classic Jets Fighter Museum at Parafield Airport in South Australia.

The engine began development in 1929 as a new engine for a new generation of fighter and bomber aircraft that would be capable of higher speeds, higher altitudes, higher payloads and longer flight times. long.

Plans for the use of rigid airships

The original plan was to use the engine in three key aircraft types, streamlined bombers, fighters and rigid airships – namely USS Akron and USS Macon.

Ultimately both airships would be lost in accidents before the engine was ready, the USS Akron was destroyed in a major storm off the coast of New Jersey in 1933 killing 73 of 76 on board .

The USS Macon was destroyed in similar circumstances two years later, in 1935, when damaged in a storm and lost off the California coast of Big Sur.

Description of the imageThe United States Navy dirigible USS Akron flying over the southern end of Manhattan, New York in the United States, circa 1931.

Fixed-wing use in World War II

The real home of the all-new Allison V-1710 would be in the American fixed-wing aircraft. The Allison was fitted to early versions of the North American P-51 Mustang, as well as the Lockheed P-38 Lightning, Curtiss P-40 Warhawk, North American F-82 Twin Mustang, and Bell P-39 Airacobra . .

In its original naturally aspirated form, the engine proved ill-suited to high-altitude work, so it was replaced by the Packard V-1650 engine, essentially a British Rolls-Royce Merlin engine built under license in the United States.

Later versions of the Allison V-1710 would largely solve this problem by introducing both supercharging and turbo-charging.

Original versions of the V-1710 were capable of 1000 hp, later forced induction versions did much more, up to 2900 hp.

Lockheed P-38 Lightning

Description of the imageMany Allison V12s were fitted to the twin-engined Lockheed P-38 Lightning. This example was called “Putt Putt Maru”, and it is Colonel Charles H MacDonald and Al Nelson standing in front. Image courtesy of USAF.

Motorsport and the use of Warbird

After the war, as thousands of military surplus Allison engines poured into the civilian market, they were quickly put to work in motorsport applications, particularly drag racing, land speed racing, tractor pulling and unlimited seaplane races.

In these areas it was not uncommon to see forced-induction Allisons producing over 3,200 hp, although the time between rebuilds was usually very short.

Today, most surviving examples of the V-1710 are mounted on warbirds, including many vintage aircraft that were originally equipped with different engines like the Russian Yak-3 and Yak-9 fighters , the Ilyushin Il-2 and even a Focke-Wulf Fw 190D.

Allison V12 V1710 7 Aircraft Engine

Description of the imageAs you can see from the identification plate this is a V-1710-35 variant, it would have originally been capable of 1150 hp.

The Allison V-1710 shown here

The engine you see here is listed as rebuilt with zero times since the rebuild was completed.

This is the V-1710-35 variant, some quick research shows it should have produced just over 1150hp when new, with the potential to do a lot more.

The seller is currently asking US$35,700 for the motor and it ships from Wichita, Kansas in the United States.

If you want to know more about the engine or make an offer, you can view the list here.

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