• There seems to be an uptick in Political comments in recent months. Those of us who are long time members of the site know that Political and Religious content has been banned for years. Nothing has changed. Please leave all political and religious comments out of the forums.

    If you recently joined the forums you were not presented with this restriction in the terms of service. This was due to a conversion error when we went from vBulletin to Xenforo. We have updated our terms of service to reflect these corrections.

    Please note any post refering to a politician will be considered political even if it is intended to be humor. Our experience is these topics have a way of dividing the forums and causing deep resentment among members. It is a poison to the community. We appreciate compliance with the rules.

    The Staff of SOH

  • Server side Maintenance is done. We still have an update to the forum software to run but that one will have to wait for a better time.

A New A2A P51 in the works.

trucker17

Charter Member
As the title says.
A2A has been working on the P51H Lightweight Mustang. It will be released under their AF (Aircraft Factory) LOGO.
The aircraft will be released once Lewis finishes up the red tape.......
 
Actually, this has been known for a couple of years now, but it's nice to know it's close to release. I've been waiting forever for this one it seems. :)

Thanks for the heads up.
 
Interesting, I always wondered what became of Chanute AFB after it was closed. I did my Tech School there in the Summer of 1966.
 
Their Airplane Factory titles are still very nicely done aircraft, but with slightly less detail and minus any accu-sim ability and at a lower price than the full detailed accu-sim aircraft.
 
Flaviossa,

The lightweight Mustang was developped and tested during WWII but never saw service in significant numbers!

it did serve with ANG units after the war though.

Dumonceau
 
The P-51H was a design progression of the P-51 line. The H model, although based on the D model, was almost completely redesigned to be much lighter in weight and much faster than the D model. The P-51H was a successful redesign and entered production in 1945, but World War II ended before any H models entered combat. With the end of the war, the production contract was cut and only 555 were produced. The H model did not see combat in Korea, reason being the USAF had far more P-51D's still in service and plenty of spare parts for the D model and the H models were relegated to National Guard units.
 
I think there were some problems that were never completely ironed out, like the retraction of the tail wheel, perhaps due to a lack of urgency since the war had ended.
 
The P-51H was the direct result of the experimental lightweight Mustangs that North American began working on in early-mid 1943, which included the XP-51F, XP-51G, and XP-51J. The lightweight Mustangs came about after the USAAF wanted to know why their fighter planes were heavier than British fighter planes, and why, for instance, that a comparable Mark of Spitfire could climb to a set altitude in 2/3 the time it would take the Mustang, or why the Fw 190 had twice the roll rate of the Mustang. Thus, they wanted to know if the design could be improved to match or better the performance of those other nation's fighters. Edgar Schmued of North American Aviation was sent to Britain in February of 1943 for two months to meet with British designers to compare design and production techniques (this included visits to de Havilland and to Rolls-Royce, where he was shown the latest Merlin engine (2200 hp, 120-in MP), which he wanted to get installed into a new Mustang design).

Here is some interesting information that Schmued wrote about, after studying the 'whys' that the American fighters were built heavier than their British counterparts. "First, the high angle of attack-load factor was 12 in America, but only 11 in England. Second, there was a side-load factor on the engine mount in America of 2G, which the British didn't have at all. Then the landing gear load factors that we used were 6G's, but were only 4G's in England. We used all of these factors to help whittle out a good deal of weight in a new design."

With the XP-51F, for example, which was essentially an entirely new design, they were able to shave 600 lbs. They did new things like making part of the engine cowl at the engine mount a structural member of the engine mount, and on the fuselage, aft of the firewall, they used .042 skins rather than .065 skins. Just about everything throughout the aircraft, including the main and tail gear, were redesigned to save on weight. The lightweight Mustangs are also sometimes referred to as the 'plastic Mustangs', as there was much more use of phenolic resin (an early plastic), such as using it to back some of the parts made of thinner aluminum. Some general characteristics of the lightweights included a longer canopy, which helped smooth out the airflow much better than the D-canopy, and the radiator scoop was stretched out for the same reason. Smaller main wheels and redesigned landing gear allowed for the leading edge of the wings to no longer be angled at the leading edge root.

The P-51H started coming off the assembly line at Inglewood in mid-1945, alongside some of the last D-models Inglewood would produce. The P-51H would never see combat in WWII or in the Korean War, but they were active throughout the late 40's and early 50's with the Air National Guard. The P-51H utilized the Merlin V-1650-9 engine, which produced 2,218 hp with water injection (this same engine can be and has been fitted to D-models, with some minor modifications as outlined in a tech order). Currently there are two P-51H's that are airworthy and flown, and I know of at least one other, maybe two, which be made airworthy.

It should be added, that while the XP-51F, G, and J never reached factory production, it wasn't the fault of North American, but rather a change in planning (a change of mind) by the USAAF. All of the experimental lightweight Mustangs achieved or exceeded their design goals. NAA's chief test pilot, Bob Chilton, for example, referred to the XP-51F as his favorite of all of the Mustangs built.
 
Back
Top