Carter wrote on Jun 19
th, 2006 at 6:24pm:
Quote:FYI -- this is also a real world C-130 procedure as with all turboprops - civilian and military - as this gives you efficient RPMs to perform a quick go-around if needed.
Just quick clarification on that point. The C-130 is actually RPM governed automatically (based on turbine speed/load). The RUN detent is just that, RUN.
Your 'flameout' is from the Condition levers being pulled into the Ground Stop area, which, as Chris pointed out, doesn't matter in the air, but when you touch down, the ground contact switches (gear weight) activate the fuel cut and there you go. The only time you need to move the condition levers in the air is to either AIR START or FEATHER the engine.
Thank you, carter. I guess I got so used to flying Majestic's Dash 8 LOL. I just re-read my manual, and on page 31 it does explain just that -
As per the manual:
Quote:Four pedestal-mounted, condition levers are primarily controls for engine starting and stopping and propeller feathering and unfeathering. They actuate both mechanical linkages and switches that provide electrical control. Each lever has four placarded positions as follows:
1. RUN is a detent position. At this position, the lever closes a switch that places engine fuel and ignition systems under control of the speed-sensative control.
2. AIR START is a position attained by holding the lever forward under spring tension. in this position, the lever closes the same switch closed by placing the lever at RUN, and in addition closes a switch that causes the propeller feathering pump to operate.
3. GROUND STOP is a detent position. in this position the lever actuates a switch that causes the electrical fuel shutoff valve on the engine fuel control to close only if the landing gear touchdown switches are closed. The switch also closes the nacelle preheat control circuit making the system operable.
4. FEATHER is a detent position as well. When the lever is pulled toward this position, mechanical linkages transmit the motion to the engine-mounted coordinator and from the coordinator to the propeller and the shutoff valve on the engine fuel control. Switches are also actuated by the lever as it is pulled aft. The results of moving the lever to FEATHER are the following:
a. The propeller receives a feather signal and mechanically and electrically energizes the feather solenoid valve.
b. The fuel shutoff valve on the engine fuel control is closed both mechanically and electricaly.
c. The propeller feathering pump is turned on
d. The nacelle preheat system remains operable only when the aircraft is on the ground (if installed).
My apologies for being wrong about the exact function. Thanks for the correction, carter
The items in the quote above from the manual that are
bold are the direct cause of your engine flameouts on touchdown via these levers. Hope this helps as well in addition.
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Engine flameouts when landing (Read 2628 times)
