Maintenance Manual STEMME S10
Date of Issue Oct. 01, 1990 page: 19
Amendment No.: 9 Date: April 19. 1999
A4010021_B19.doc-19/27.01.14 14:18/27.01.14 14:18
Doc.No.: A40-10-021
Auxiliary Battery (optional)
Location: left leg room or top of the fin, depending on trim requirements.
Utilisation: Supply of avionics especially during soaring flight in order to avoid inadvertent discharge of the
main battery and to ensure sufficient capacity of the main battery for restarting the engine.
Switching: By switching over from the main to the auxiliary battery with the switch "AVIONIC SUPPLY".
Charging: By the generator or externally (maximum charging voltage 14.7 V)
3.7 Communication and Navigation Equipment
The VHF transmitter-receiver is a part of the minimum equipment. Furthermore, equipment approved for
operation in powered sailplanes or not subject to approval may be installed. The mass limits and the centre-
of-gravity range for equipment in the instrument board as well as the limits of current consumption are to be
adhered to.
Locations of the antennas:
− The radio antenna is installed in the rudder.
− The VOR-antenna is installed on the cockpit floor (armada shell).
− The transponder antenna is installed in the tail boom.
3.8 Oxygen Equipment
One or maximum two oxygen system mountings (optional equipment) for one oxygen bottle each are
installed in the upper baggage compartment. The mountings are suitable for oxygen bottles from various
manufacturers, provided the diameter is within a minimum of 132 mm / 5.2 in. and approx. 140 mm / 5.5 in.,
and the total length including regulator is approx. 450 mm / 17.7 in. through a maximum of 520 mm / 20.5 in..
The certification of the powered glider does not include a certain oxygen system and fulfilment of the
requirements must be demonstrated to the authority by the supplier or the facility, which modified the a/c
(normally as a modification of a single a/c).
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