Arctic Air Mass
An air mass that develops around the Arctic, it is characterized by being cold from surface to great heights. The boundary of this air mass is often defined by the Arctic front, a semi-permanent, semi-continuous feature. When this air mass moves from its source region, it may become more shallow in height as it spreads southward.
Aero Linx: Aircraft Wrecks in Arizona and the Southwest
With their ideal climate and sparsely populated land, Arizona and the southwestern states were used extensively to train Air Force and Navy pilots. The height of this training took place from World War II thru the 1960’s. With the many air bases training thousands of pilots came many mishaps. There were over 500 aircraft accidents in Arizona alone during WWII, and over another 600 by the end of the 1960’s...
"Everything went smoothly following the launch... This is the third GPS Block IIF that we've placed on orbit and the process seems to get better with each launch. We were able to decrease the timeline for checkout of the vehicle and it's clear we're on the right track for future success."
Source: Col. Bernard Gruber, GPS director at SMC, following the acceptance of satellite control authority of its third Global Positioning System Block IIF satellite during a ceremony at Schriever Air Force Base in Colorado Oct. 26.
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