P-39
it took 50 years to build it was the wrights plane
$7,325, they only made 11,870 of them. It was one of the first 50 caliber guns made.
If you are asking about airguns in general not just BB guns, but Pellet guns also. The family of PCP air guns. (Precharged Pneumatic Guns (PCPs) these use a scuba tank to charge the rifle. They can shoot up to a 50 cal bullet and bring down a Moose. As for BB guns alone most will fall into the under 500 feet per second group. Where Pellet rifles can exceed 1000 feet per second. BB guns/rifles are not as accurate as pellet guns/rifles. Because BB guns use a smooth boar barrel where pellet guns use rifling in the barrel.
The Nimrod is an maritime patrol plane that is more of a bomber plane with heat seeking Sidewinder air-to-air missiles for self defense instead of a actual fighter plane. B-52's with 50 caliber machine guns shot down North Vietnamese MIG fighters in 1972, that doesn't make the B-52 bomber (with machine guns) a fighter plane. The world's biggest fighter plane is probably the F-14 Tomcat flown only by Iran (put in to storage in Arizona by the USA) or the F/A-18E/F Super Hornet flown by the US Navy and possibly other countries.
Yes
that depends. but I can tell you a plane can be over 50-100 feet!
The plane.
The North American Datum of 1983 (NAD83), which is defined in metres, replaced The NAD27 in the 1980s. The State Plane Coordinate Systems were also updated, but the National Geodetic Survey left the individual states to decide which (if any) definition of the foot they would use. All State Plane Coordinate Systems are defined in meters, and 42 of the 50 states use the meter-based State Plane Coordinate Systems only.
No. most guns are .68 caliber, however there are some .50 and .43 caliber markers and pistols.
50 square miles is equivalent to 12950 hectares.
Machine guns were developed in the 1890s and improved upon for the next twenty years. The German Army, during World War I, began the large scale use of machine guns (machinin gewehr) on the battle field, primarily as fixed position defensive area weapons. The other countries involved quickly followed suit. One of the first practical machine guns was invented by Hiram Maxim, an American, whose design greatily influenced the machine guns used by Germany, England and France, and later by the USofA. John M. Browing, an American, developed several very practical and successful machine guns in the 1915 to 1925 era, several of which are still in use today, e.g. The Browning .50 MG, officially the .50 BMG also called in slang: "Ma Deuce".
50% of california