ASG 32 EL Podręcznik lotu - Strona 7

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Flight Manual
Sustainer assisted aerotow
The electric propulsion can be used to assist the aerotow, e.g. in case of
short or wet airfields.
WARNING
The sustainer assisted aerotow is only permissible, if the aerotow
would be also possible without the assistance of the gliders sus-
tainer. The assistance serves to increase the safety margin only.
Referring to the ground roll and take-off distance as well as the
climb rate of the tow the same values as for the unassisted tow
apply.
WARNING
The state of charge of the propulsion battery has to be at least 70%
to guarantee a sufficient amount of energy for the tow.
The proper function of the electric propulsion has to be tested with
a ground run before the tow. An indicated power of at least 26 kW
as well as a speed of at least 2200 rpm have to be achieved with a
power setting of 100% while stationary. See also page 4.10a.
In general, all procedures and limits of the normal aerotow apply. In ad-
dition, the following has to be regarded:
-
Recommended
62 – 75 mph), in case of towing speeds above 130 km/h (70 kts,
81 mph) the sustainer propulsion has no benefit anymore. Hence the
sustainer should be stopped and retracted according the checklist of
section 4.5.1 at a safe altitude in case of high towing speeds.
The following checklist provides a procedure for performing a sustainer
assisted aerotow.
Issue:
15.09.2017
Revision:
TN 12 30.10.21 PA
towing
speed
PA
Flight Manual
100 – 120 km/h
(54 – 65 kts,
Appr.
4.19