Search results
Results from the WOW.Com Content Network
A A&TWF – Acquisition and technology work force a – Army AA – Assembly area AA – Anti-aircraft AA – Aegis ashore AAA – Anti-aircraft artillery "Triple A" AAAV – Advanced Amphibious Assault Vehicle AAC – Army Air Corps AAD – Armored amphibious dozer AADC – Area air defense commander AAE – Army acquisition executive AAG – Anti-aircraft gun AAK – Appliqué armor kit (US ...
A meta-analysis of 21 studies found that the F&P Text Level Gradient system did not lead to effective reading fluency interventions. [ 8 ] Matthew Burns, a reading researcher at the University of Florida, has studied assessments within the F&P Text Level Gradient system and found that they result in 54% total accuracy and correctly identify low ...
The Northrop F-89 Scorpion is an all-weather, twin-engined interceptor aircraft designed and produced by the American aircraft manufacturer Northrop Corporation.It was the first jet-powered aircraft to be designed for the interceptor role from the outset to enter service, [1] as well as the first combat aircraft to be armed with air-to-air nuclear weapons in the form of the unguided Genie rocket.
The shoulder-fired personal defense weapon was to weigh less than 3 kg (6.6 lb), with a magazine capacity of at least 20 rounds. [16] The handheld personal defense weapon (pistol) was to weigh less than 1 kg (2.2 lb), although a weight of 700 g (1.5 lb) was deemed desirable; it was to have a magazine capacity of at least 20 rounds. [16]
Part of the Long Range Strike Bomber (LRS-B) program, it is to be a stealth intercontinental strategic bomber that can deliver conventional and thermonuclear weapons. Named "Raider" in honor of the Doolittle Raiders of World War II , the B-21 is meant to replace the Rockwell B-1 Lancer and Northrop Grumman B-2 Spirit by 2040, and possibly the ...
The F-106 was the ultimate development of the USAF's 1954 interceptor program of the early 1950s. [4] The initial winner of this competition had been the F-102 Delta Dagger, but early versions of this aircraft had demonstrated extremely poor performance, being limited to flying at subsonic speeds and relatively low altitudes. [5]
The conversion led to production of the P-51B beginning at NAA's Inglewood, California, plant in June 1943, [41] and P-51s started to become available to the 8th and 9th air forces in the winter of 1943–1944.
The Fujita scale was adopted in most areas outside of the United Kingdom. [citation needed] On February 1, 2007, the Fujita scale was decommissioned, and the Enhanced Fujita Scale was introduced in the United States. [7] The new scale more accurately matches wind speeds to the severity of damage caused by the tornado. [citation needed]