LTL TATM LTL - Vol 1
Issue 1.0
22
5.2.1 Technical Log
The supervisor in charge of each shift must fill out a new technical log sheet at the start of his/her
shift.
The test pilot is to ensure that all the relevant information is filled in before the test flight can
commence. i.e.
•
Weather forecast
•
Balloon status
•
Ride Data
•
Inspection and maintenance
•
Un-laden freelift
•
Windspeed
When the balloon is at ride height, the test pilot fills in the remaining data i.e.
Elevated Freelift
Helium Temperature
Measured windspeed and direction
Helium Pressure
Ballonet Pressure
Battery condition
The Operations Manual specifies minimum free lift requirements at various wind speeds up to the
max. operating windspeed.
Freelift and windspeed govern how many passengers may be carried per ride.
Freelift and helium temperature/pressure data can be used to estimate the volume/purity of helium.
This should be monitored carefully as it will highlight any increased helium loss through valve leakage,
envelope damage etc.
The battery voltage must be between the limits specified in the Operations Manual
5.2.2 Monitoring
During the test flight, the pilot should be monitoring the control panel, the gondola, netting and
envelope for any abnormalities or defects.
The control panel may provide the first indication to the pilot that there may be a problem. It is vital
that all pilots are fully conversant with the control panel and it’s relevant sub-systems and the
consequences of their failure.
If any at any point during the test flight the pilot notices any abnormality or defects, the test
ride is to be terminated immediately and the balloon descended.
5.3 Passenger Rides
On completion of a successful test flight, the supervisor will calculate the maximum number of
passengers permitted per flight and sign the technical log.
Passenger flying may now commence.
