Tek. nr. D.224554; Radar ranging installation, G.A. of radar ranging installation. Hawker Aircraft Limited, Kingston-on-Thames Tek. nr. A.199123; G.A. of ballasting-radar head & ranging unit. Hawker Aircraft Limited, Kingston-on-Thames Tek. nr. D.185239; G.a. of radar ranging installation. Hawker Aircraft Limited, Kingston-on-Thames Tek. nr. D.225310; G.A. of radar ranging installation. Hawker Aircraft Limited, Kingston-on-Thames