SPH-4 PROJECT GUARDRAIL
This SPH-4 Helmet belonged to an US ARMY pilot involved in PROJECT GUARDRAIL II and IV from 1972 to 1976. The helmet has been modified to take the MBU-5/P Oxygen Mask.
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PROJECT GUARDRAIL (Guardrail Common Sensor Program ) was an Airborne Battlefield Signal Surveillance concept started by US ARMY in 1971 (Guardrail I).
As far as 1998 the system has reached the technological level of Guardrail XII.
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The basic aircraft type used in the GUARDRAIL project was the Beechcraft RU-21 Huron. Starting with the piston-engined version of 1971, the type was later upgraded up to the RC-12Q version in 1998.
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The original owner of this helmet was based in Hawaii from 1972 to 1975.
In 1973 he was sent in South East Asia in order to support a Missing In Action (MIA) search program over Viet Nam, under GUARDRAIL II program. During this type of activity the crew flew in civilian clothes.
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In 1976, this same pilot flew GUARDRAIL IV missions along the North Korean border, flying from Taegu AB.
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More on PROJECT GUARDRAIL HERE
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