Specifications

[P-51D Mustang]

DCS

EAGLE DYNAMICS

 AUTO. In AUTO mode, the supercharger operates automatically, switching from Low to High

blower at an altitude of 14,500 to 19,500 feet, depending on the amount of ram air. The

supercharger switches from High to Low blower at an altitude approximately 1,500 feet below

that at which High blower engages to prevent repeated activation of High and Low blower

modes at borderline altitudes. AUTO mode is the normal setting for the supercharger.

 LOW. Setting the switch to LOW sets the supercharger to Low blower mode manually.

Operating the supercharger in Low blower mode may be desirable for maximum fuel efficiency

when conducting long-range flights.

 HIGH. Setting the switch to HIGH sets the supercharger to High blower mode manually. The

switch must be held in the High position to maintain High blower mode. Releasing the switch

will revert the supercharger to Low blower mode.

An amber jewel indicator light next to the switch turns on when the supercharger is in high blower.

The indicator can be tested by pressing inward.

For a more detailed description of the supercharger system, see the Supercharger section of the

aircraft overview.

2. FUEL BOOSTER SWITCH. Setting the Fuel Booster switch to the ON (up) position provides

electrical power to the booster pumps in the two main and one fuselage tanks. Each booster pump is

engaged by selecting the corresponding tank using the Fuel Selector Valve at the bottom of the front

dash.

For a more detailed description of the fuel system, see the Fuel System section of the aircraft

overview.

3. OIL DILUTE SWITCH. Setting the Oil Dilute switch to the ON (up) position thins the oil with

gasoline, which may be necessary when starting the engine at temperature of 40°F and lower.

For a more detailed description of the oil system, see the Oil System section of the aircraft overview.

4. STARTER SWITCH. The Starter switch is used to start the engine. The switch is spring-loaded

and needs to be held in the ON (up) position to execute a start.

Do not operate the starter for over 15 seconds continuously.

5. PRIMER SWITCH. The Primer switch is used to prime the engine with fuel. The switch is spring-

loaded and needs to be held in the ON (up) position to execute a prime. When the primer switch is

held ON, fuel passes to the primer lines and into the induction manifold. Usually 3 or 4 seconds are

sufficient to prime a cold engine. One second is usually sufficient for a warm engine. The engine

should be primed only when it is turning over.