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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.

 

During this time he was assigned to a period in Viet Nam  in order to support a MIA search program, 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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