920TH AIRCRAFT CONTROL AND WARNING SQUADRON
APO 677, New York, New York.
August 1956
AHOPS
SUBJECT: Monthly AC&W Activity Report (RCS: 64-21)
TO: Commander
64th Air Division (Defense)
ATTN: ADCS
Pepperrell Air Force Base.
In compliance with 64th AD (D) Regulation 55-35, dated 27 February 1956, the following report is submitted for the month ending 31 July 1956.
AFSC |
AUTH |
ASSIGNED |
PRESENT |
TDY |
LEAVE |
OTHERS |
1644 |
2 |
1 |
1 |
0 |
0 |
0 |
1121B |
0 |
1 |
1 * |
0 |
0 |
0 |
3044 |
1 |
1 |
1 |
0 |
0 |
0 |
3034 |
1 |
1 |
1 |
0 |
0 |
0 |
27330 |
6 |
23 |
23 |
0 |
0 |
0 |
27350 |
10 |
5 |
5 |
0 |
0 |
0 |
27370 |
5 |
2 |
2 |
0 |
0 |
0 |
29130 |
2 |
1 |
1 |
0 |
0 |
0 |
29150 |
6 |
1 |
1 |
0 |
0 |
0 |
29170 |
1 |
2 |
2 |
0 |
0 |
0 |
30332C |
0 |
2 |
2 |
0 |
0 |
0 |
30352C |
5 |
2 |
2 |
0 |
0 |
0 |
30372 |
5 |
2 |
2 |
0 |
0 |
0 |
30433A |
0 |
2 |
2 |
0 |
0 |
0 |
30433B |
1 |
1 |
1 |
0 |
0 |
0 |
30453A |
0 |
1 |
1 |
0 |
0 |
0 |
30453B |
0 |
0 |
0 |
0 |
0 |
0 |
30473 |
0 |
1 |
1 |
0 |
0 |
0 |
TOTAL |
45 |
49 |
49 |
0 |
0 |
0 |
* Cross-Training from 59th FIS for approximately 90 days
(2) Director activity for the month of July 1956.
Name of Director |
Lacy 1/Lt. |
Richard 2 /Lt. |
90º Beam Intercepts |
0 |
0 |
Identification Intercepts |
0 |
0 |
No. of A/C Directed |
72 |
81 |
Simulated Intercepts |
40 |
20 |
GCI/GCA |
0 |
0 |
GCI/NAVAIDS |
0 |
0 |
Actual ECM |
0 |
0 |
Synthetic ECM |
0 |
0 |
Assist to Aircraft |
0 |
0 |
FIS Cross Training |
X |
X |
AC&W Cross Training |
X |
X |
(3) The 15-J-1C was operational during the entire month.
(4) Two hours of ECM Training was conducted on 9 July 1956 by T/Sgt. Roy E. Samuel, Radar Maintenance Supervisor. Subject material was obtained from the Air Training Command, Staff Officer ECM Familiarization Textbook, dated may 1955.
(5) Two 27350’s were lost during the month, and two 27370’s from the 926th AC&W Squadron are enroute to this unit.
(6) The inter-communications set-up in Surveillance was revised and detailed block diagrams have been prepared by the Wire Maintenance section for purposes of future operational planning and increased maintenance efficiency.
(1) Radar Maintenance
(a) Magnetrons in both upper and lower beams were changed because of double moding. The first magnetron installed in upper beam intermittently misfired at currents above 40 a. A second one was installed and is operating normally.
(b) All plan 12 PPI Scopes were dismantled and inspected and overhauled. Major replacements were three CRT’s and four retainer rings on the gear driving mechanism for the yoke assembly. Other minor parts were changed and all scopes cleaned, lubricated and aligned.
(c) The FPS-3 trigger became intermittently unstable as the antenna rotated between 160 and 170 degrees and occasionally at other azimuths. Slight detuning of the lower beam stalo, tilting of the antenna upward, or any adjustment that reduced the intensity and extent of lower beam video would stabilize the trigger. The unstable condition is related to anomalous propagation and occurs whenever the permanent echo pattern is considerably greater than normal. The 924th AC&W Squadron is experiencing the same difficult along 350 degrees azimuth toward this station. Their trigger interference disappeared when our FPS-3 transmitter is disabled. The FPS 502 was checked throughout with particular emphasis on the AFC and ? systems. The magnetron, delay line, RF oscillator, and numerous tubes were replaced. Excellent operation is being obtained at the present time.
This section unreadable
GEORGE A MIDDLETON
Major, USAF
Commander