engine shut down

Jeff;

I don't know what the syllabus is on this, perhaps Jim or Tom can chime in, but if you brief your thought to the instructor, perhaps it can be included after some low-power maneuvers, if a full shut-down / feather is required. Perhaps simulating a shutdown with a zero-thrust power setting would be appropriate?

I agree that going from 380° CHT to no power at all, sounds bad, but these engines are fairly robust. Shock cooling, if handled as suggested, really isn't an issue.

Mike
ABS Technical Advisor

You asked: <<<What risk do I have by performing this during a cold month>>>
According to the 4 hour BEST flight syllabus for multi engine BPPP training “Guide to Initial Pilot Checkout: Normally Aspirated Barons” available for download on the ABS website: Propeller feathering/unfeathering is only required on the initial checkout (i.e.: Pilots first BPPP flight – see BEST Flight Training Record). After that is just “simulated” engine failure and maneuvering.

The syllabus mentions in item #11, Simulated engine failure/single engine maneuvering: Simulate engine failure, troubleshooting (if time permits) and feathering
Simulate engine failure with a gradual throttle reduction
Do not initiate failure with mixture or fuel selector controls

Simulated engine failure to zero thrust
12”MP/prop on detent
Single engine maneuvering
Single engine approach and landing

The point of all this is, if not the first BPPP flight, the “simulated” engine failure and subsequent maneuvers can be accomplished with 12”MP/prop on detent which, if temperatures are monitored, should not harm the engine in any way. If first flight, then monitoring temperatures and restart procedures is all that more important.

Jim
ABS Technical Advisor
BPPP Instructor & Ambassador
CFII/MEI, A&P/I-A

Attachments:
BPPP BEST Flight Training Record, see “multi engine operations”
Guide to Initial Pilot Checkout: Normally Aspirated Barons