PPRuNe Forums - View Single Post - HF keying when refuelling represents fire hazard?
Old 24th March 2012 | 18:03
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Machinbird
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Joined: Jul 2009
: ATP+Mil
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From: Not far from a big Lake
Short sea story:
We had two F-4s parked on the bow of USS America CVA-66, and they were from different squadrons. Next morning, the fuel quantities on both aircraft were spinning.

Trouble shooting revealed that one of the fuselage fuel probes in the same location on both aircraft was dangling from its wires inside the tank. These probes were held in their position by snap rings in a groove.

What does that do with HF? Just that carriers have long dipole transmitting antennas spaced along the sides of the bow of the ship. For flight ops the dipoles are horizontal, but when the ship is not flying, they can raise them to vertical.

Did RF couple up to the fuel quantity wiring and cause an explosion inside the probes? I don't know, but we certainly had our suspicions. I never saw that particular malfunction again.
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