AIM-4F Weapon System Evaluator Missile (WSEM)
The WSEM is an item of test equipment that is used to evaluate the performance of the fire
control system during an airborne simulated attack. This is done by permanently recording
the missile preparation signals on a light-sensitive oscillogram. The signals that are
recorded on the oscillogram are recorded in normal missile prelaunch time sequence as
either an analog or digital trace. When the oscillogram is developed, the analysis of
these traces verify the correct timing and magnitude of the signals. The prelaunch signals
supplied to the WSEM may either perform the identical functions as in a tactical missile,
or may be used to serve particular functions in the recording unit of the WSEM. In either
case, these signals are recorded on the oscillogram.
RO-104/AJ G Special Weapon Simulator - McDonnell
Simulator Rocket (MSR)
When installed
on the F-106 aircraft, the recorder simulator RO-104/AJ G (MSR) provides a complete in-flight check, and permanent
record of the presence of the preparation and firing signals normally applied to an AIR-2A
special weapon during an attack run. The complete information for four passes can be
recorded. The MSR is installed on the special weapon ejector rack in place of the tactical
rocket. The recorded data is obtained without rocket expenditure or telemetering equipment
and is available immediately upon completion of flight. The output indications,
representing the presence of special weapon signals, appear as numbers and functions
photographed on Polaroid-type film. A list of the signals recorded, and the
corresponding film indication, appear like this image.
ARMAMENT TEST SET (ATS)
While the WSEM gave an airborne check of the missile circuits and the MSR gave an
airborne check of the rocket circuits, the attached photo of the ATS (Armament Test Set)
tested the missile armament on the ground in a high altitude, high speed simulated
environment known as Short System Ground Check (SSGC) # 5. The armament could also be
manually tested from the 596 unit in the right main wheel well as well as the automatic SSGC # 5 test. Results were displayed on the ATS via lights and tripped circuit breakers. When necessary, successful ATS ground tests could be substituted for airborne
verifications when determining qualifications for standing Alert.
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AIM-4F Weapon System Evaluator Missile (WSEM)
WSEM Tape
Film used from the Special Weapon Simulator, called a MSR for McDonnell Simulator Rocket.
Airman Second Class
Erv Smalley, Feb, 1962, Weapons Calibration Hanger, Kincheloe AFB, Michigan.
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