Replacing the recorder paper, rewinding the recorder, adjusting the recorder zero
adjustment, and refilling/cleaning the inkwell and pens.
Rotating beam projector, cloud height detector, and the ceiling height recorder.
Cloud height is determined by the angle of the projected light beam reflected from
the base of the clouds directly overhead the receiver.
A correction factor.
A44. When applying the correction factor would yield an elevation angle less than 45°,
the correction is ignored and the angle is read as is.
After sighting the light spot at the cloud base, determine cloud height by
multiplying the baseline distance by the tangent of the elevation angle.
When clouds are thin, or on hazy days.
High winds may carry lighter 10-gram balloons out of sight horizontally before
they reach the cloud layer.
Cloud height is determined by the elapsed time, in minutes and seconds, that the
balloon takes to enter into the cloud base.
The standard ascension rate of the
balloon used is compared with height values listed in NAVMETOCCOMINST
3141.2 or NAVMETOCCOMINST 3144.1.
To compute sea-level pressure, altimeter setting, and pressure altitude from
A52. Dew-point temperature, relative humidity, and conversion values for the
Fahrenheit and Celsius temperature scales.
The CP-718/UM Density Altitude Computer.
It may also be used to compute the ships course and speed necessary for optimum
relative wind direction and speed when conducting flight operations.
The date and time the outage began or ended, the reason for the outage (if known),
and the name of the person making the entry.
A56. METEM-qualified technicians.
To ensure that routine maintenance is completed as required and that maximum
equipment operational readiness is achieved.