Airplane Factory SLING LSA
Pilot Operating Handbook
Page | 7-28
Date of Issue: 07 July 2014
Revision : 1.3
7.18
Propeller
The propeller is a Warp Drive, 72 inch, composite, ground adjustable, 3
blade composite propeller or a Whirlwind, 70 inch, composite, ground
adjustable, 3 blade propeller.
7.19
Fuel system
The airplane has a fuel tank located in the inside leading edge of each
wing. Each tank is equipped with a vent (underneath wing) and finger
screen (on tank outlet / fuel pick-up). A drain valve is located in the lowest
point of each tank. Each tank outlet leads to a fuel selector valve situated
on the central console in the cockpit. Fuel return lines return excess fuel
supplied by the fuel pump to the fuel tank. The system is configured as in
the diagram below.
Volume of each wing tank is 75 liters (19.8 US gal), (73 liters / 19.28 US gal
useable).
NOTE
For technical data refer to documentation
supplied by the propeller manufacturer.
WARNING
The fuel lift pipe in each fuel tank is situated adjacent to the lower
inside wall of the tank. The aircraft should at no time be subjected to a
sustained side slip towards a near empty fuel tank which is in use (i.e.
wing with near empty tank down) as, despite the baffling, this may have
the consequence that the fuel runs towards the outer edge of the tank
exposing the fuel lift pipe to suck air, thereby starving the engine of fuel
leading to engine failure. This poses a particular threat when at low
altitude, typically prior to landing.