Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: EAW034604 / 2147353)

' RAF Portland Type 54 radar on 200ft tower. This was before the construction of the ROTOR radar station with its underground R1 operations room. This was in operation 20th February 1953 until the 17th June 1956. '

Dywedwch wrthym pam mae’r cynnwys hwn yn amhriodol *(gofynnol)

Dewis categori *(gofynnol)

Os ‘Arall’ rhowch fanylion (dewisol)

Eich enw (dewisol)

Eich cyfeiriad e-bost (dewisol)

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