Airplane Factory SLING 4
Pilot Operating Handbook
Page | 4-18
DC-POH-001-X-C-3
Revision : 1.3
4.9
Cruise
Refer to section 5 for recommended cruise figures/settings.
4.10
Descent
Optimum glide speed
- 65 KIAS.
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 (i.e. wing with near
empty tank down) as, despite the baffling, this may lead to fuel running
towards the outer edge of the tank and exposing the fuel lift pipe to suck
air, thereby starving the engine of fuel and leading to an engine
stoppage. This poses a particular threat when at low altitude, typically
prior to landing.
WARNING
If a fuel lift pipe is exposed to air, the pump will suck air into the engine
(from the empty tank) and engine failure will result. When one tank is
empty, or close to empty, the fuel selector valve should be switched to
the fullest tank.
Avoid operation below the normal operational oil temperature (90 to
110 °C / 194 to 230 °F).
WARNING
It is not advisable to reduce the engine throttle control lever to minimum
on final approach or when descending from very high altitude. In such
cases the engine can become over-cooled, although unlikely, and a loss of
power may occur. Descent at increased idle (approximately 3000 rpm),
speed between 65 to 75 KIAS and verify that the engine instruments
indicate values within the permitted limits.
Содержание SLING 4
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