XP-65/F7F Development

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Mankind was already at the Pacific Ocean; Manifest Destiny was specifically for white Americans, a group that, at the time, barely included the Irish.
 
America was already sea to shining sea before manifest destiny too.
For some reason citizens of the USA thinks the term Americans apply only to them .
 
America was already sea to shining sea before manifest destiny too.
For some reason citizens of the USA thinks the term Americans apply only to them .
WHITE citizens of the USA, that is! Native American citizens, African American citizens, Asian American citizens of the US and Latin American citizens of the entire western hemisphere know better.
Cheers,
Wes
 
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"Americans" applies to anyone from North or South America, and perhaps residents of "Little America" in the Anarctic. It's really the REST of the world that calls U.S. citizens "Americans," and the press. Almost nobody else I know makes that mistake.
 
America was already sea to shining sea before manifest destiny too.
If you mean the continent, of course: If you mean the United States, then no.

WHITE citizens of the USA, that is! Native American citizens, African American citizens, Asian American citizens of the US and Latin American citizens of the entire western hemisphere know better.
Sadly, all too true. At least I don't have any problems with people who are Native Americans, African Americans, Asian Americans and Latin Americans. Admittedly I don't currently have any as friends, but I've never selected friends on the merit of their ethnicity.

"Americans" applies to anyone from North or South America, and perhaps residents of "Little America" in the Anarctic. It's really the REST of the world that calls U.S. citizens "Americans," and the press. Almost nobody else I know makes that mistake.
I'm not really sure how citizens of the US became known as Americans... I guess United Statesian doesn't sound as good.
 
I'm not really sure how citizens of the US became known as Americans... I guess United Statesian doesn't s
How about "Yankees"? A lot of people around the world use the term to refer to us. Not popular with Red Sox fans or our misguided friends in Dixie.
What is a Yankee? If you're in Eurasia/Africa, it's someone from the Americas. If you're in South/Central America, it's somebody from North America. If you're in Canada or Mexico it's someone from the US. In the US it's somebody from the North. If you're in the North, it's New England. In New England, the word "real" gets attached and it's someone from Vermont. In Vermont it's the three counties that constitute "The Northeast Kingdom". Ayup.
Cheers,
Wes
 
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Let's get back onto topic: The F7F

Okay, I did some research and the F4U used an R-2800 and it flew in 1940...
 
I was looking into the use of the 37mm M4 versus the M3 (anti-tank) and found the biggest difference: The M3's barrel was 154.3" versus the M4's 89.5"; Other differences would include the ammo weight: The M3's total weight was 1050g, versus the M4's 900g; the mass of the projectile itself was 750g for the M3, and 608g for the M4.

A longer barrel helps accuracy because of rifling, and the effect of spinning the bullet up to speed: What effect does it have on muzzle velocity and explosive gas force?
 
The cartridge for the M4 sported less propellant charge than for the M3 gun. More propellant = needs longer barrel.
 
I don't think that blowing up a barrel was that easy with US/Western standards of the day. Barrel lenth, thickness/strength and rifling is directly depnedant on projectile size and weight, as well as amount and type of propellant used. No point in having a gun barrel being to long if the amount of propellant is modest.
 

License built or purchased Mosquito's would have helped the Night Fighter Squadrons.
 
License built or purchased Mosquito's would have helped the Night Fighter Squadrons.
License built would have taken too long and purchased meant choosing the USA night fighter needs over other priorities, at the time almost everyone wanted more mosquitos.
 
So, the M3 needed the full length?
Spin has sod all to do with anything in this discussion. Use the appropriate rate of twist in the rifling and you can spin any projectile at the right speed to stabilize. Lower velocity just calls for a quicker twist in the rifling.

The AA/AT/tank gun round used a LOT more propellant than the 37mm aircraft gun. firing it out of short barrel would have resulted in a LOT of muzzle flash and a considerably lower muzzle velocity compared to the full length barrel, even if better than the short round.

Please look up the actual differences and not focus on quicky comparisons like barrel length. You can get .357 magnum revolvers with barrels from 2-2 1/2 inches to 8 inches. Huge change in velocity. You can also fire .38 specials in a long barreled revolver and sometimes equal a .357 from a short barrel.

Most (all?) cannon were much more restricted in the ammo they fired than small arms. They didn't want to make up new firing tables/charts for different velocities/projectiles.
 

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