|In this photograph the B-720 is seen during the moments of initial impact. The left wing is digging into the lakebed while the aircraft continues sliding towards wing openers. Dec 1984, NASA Photo / NASA photo ECN-31803|
|Following its controlled impact on posts imbedded in the lakebed, the B-720 is sliding sideways and almost enveloped in the large fireball with only the aircraft's nose and right wing-tip exposed. Dec 1984. NASA Photo / NASA photo EC84-31809|
This anti-misting kerosene (AMK) cannot be introduced directly into a gas turbine engine due to several possible problems such as clogging of filters. The AMK must be restored to almost Jet-A before being introduced into the engine for burning. This restoration is called “degradation” and was accomplished on the B-720 using a device called a “degrader.” Each of the four Pratt & Whitney JT3C-7 engines had a “degrader” built and installed by General Electric (GE) to break down and return the AMK to near Jet-A quality.
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