28 April 1958 MEMORANDOM FOR Commander Task Group 7.4 SUBJECT: Radar Tracking of Sampling Aircraft for Pinsa 1. This will eonfirm conversations held between Colenel Wignall, Dr. R. Batsel and myself on the tracking plen, The purpose ef providing for a tracking system is fundamentally to add plausibility that the sampling mission was conducted in e straight-forward manner. It will not be the intent, hewever, to try to indicate to the U.l.Odservers or to the press, that the tracking system is a Proof that the sampling mission was in faet carried out as shown. 2. To appropriately accomplish the radar tracking scheme, it is requested that TG 7.4% provide a briefing on the radar systen to the observers on D-l or D-2 to familiarise them with the aystem ani equip- — mont. As part of the briefing it would de desirable to have ons of the B-57 B sampling aircraft make a take-off, fly a short pattern, and land so the observers can see how the system operates. 3. On shot day, if the U.K. observers desire it, they will be permitted totrack the sampling aircraft as they carry out their ris- Sion. Selected members of the press should be allowed to * in the AOC in the gallery during thie period. ‘he radars should be set for a range, probably 150 miles, such that the planes in flight will not pass eff the scope. All radars should be set up the same way. lt alec would be desire sacle to plot on the large plotting board a contimous track of the courses followed by the aircraft from take-off to landing. &, We would apprreciate your coments on the above preposal. @. W. JOHNSON Teehnieal Direetor, Pinon . ec: CTF 7~ cTG 7.2 CTU «2 R, Batsel P. Bankhart R, Southwick G. Johnson ( |