HABFM-1401001
VERSION: 07_9
FLIGHT MANUAL
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BALLONS CHAIZE
FLIGHT MANUAL
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BALLONS CHAIZE
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PAGE 52/64
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V.1
Using the loading graph and table
Std = Standard atmosphere = Temperature = 15°C, Pressure = 1013,25 HPa - At sea level
The dotted lines indicate the deviation from standard atmosphere (Std - 10° = 5°C)
The load table gives the maximum authorised mass for a 100° envelope temperature for series SW,
JZ, CS and DC; and 115°C for series JZ X. In order to calculate the payload, deduct unladen mass
from total mass. True unladen mass is shown in Section VIII of the present flight manual.
Example:
Balloon Type JZ30, volume 3010 m3, ambient temperature 17°C, desired flight altitude 4000 ft
(1200 m) above sea level.
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On the load graph, find the temperature along the temperature curve.
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Then move up vertically to where it intersects with the line marked "sea level"
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From there, move to the line marked 4000 feet, parallel to a dotted line.
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From this point trace a horizontal line in order to find the buoyancy per 100 m³ on the
vertical axis. This gives us a value between 26 and 27. Use the more restrictive of the two
i.e. 26.
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Find this value in the load table; it gives 783 kg.
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Subtract the unladen mass (197 kg); this gives a payload of 586 kg, to be shared between
the passengers and the gas bottles.
CAUTION: Do not forget to count the two obligatory gas bottles
