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Posted (edited)

https://1drv.ms/u/s!AlTIEjrYOEqigrFY7dMfD_PH4zlnQw

And this for climb at 82%.

There are only 2 settings for prop speed, and the 72 and 42 500 both have the same engines.

And finally - I almost predict what you are you gonna say now - these are from Limitation charts, not performance.... and yes I can read graphs - oh believe me !

Edited by GeeBee

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Hey @46Pilot Lets say you are down at 9000ft and ATC tells you to maintain 210kts, how would you maintain that speed or any speed ATC gives you at the lower altitudes with the PLs in the white notch, CLs in Auto and I'm guessing Power Management still in CRZ withoutt overspeeding? Thanks.

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To 46 pilot:

Thank you very much for your insights into this matter and for your general flying tips.I am an (amateur) real life pilot and I have no doubts that

your words on the PL white notch position are indeed correct.When in this position ,the airplane seems to behave as she should behave for this

type of turboprop.Ever since I applied this,the airplane seems to have the correct speeds and engine temperatures.

I do have one question:when on the ground after landing and with the right engine in hotel mode,if I then want to shut down the right engine,do

I take it out of hotel mode first (letting the props rotate),or do I shut the right engine down in hotel mode?The manual seems to have nothing to 

say on this matter.Thanks for any replies!

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Posted (edited)
4 hours ago, Novej757 said:

Hey @46Pilot Lets say you are down at 9000ft and ATC tells you to maintain 210kts, how would you maintain that speed or any speed ATC gives you at the lower altitudes with the PLs in the white notch, CLs in Auto and I'm guessing Power Management still in CRZ withoutt overspeeding? Thanks.

You can anytime reduce the power levers out of the notch to keep the speed under the limit. Also, from top of descend all the way down to the runway, we continuously keep the hand on the levers and adjust them to keep as much as possible a constant speed. Also, for the airplanes with older engines or with engines approaching the end of time (they need to be replaced), usually the ITT tends to go over the limit, also when cruising we reduce a little bit the power levers, to keep the ITT a little bit cooler.

Edited by 46Pilot
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Posted (edited)
4 hours ago, theophile said:

To 46 pilot:

Thank you very much for your insights into this matter and for your general flying tips.I am an (amateur) real life pilot and I have no doubts that

your words on the PL white notch position are indeed correct.When in this position ,the airplane seems to behave as she should behave for this

type of turboprop.Ever since I applied this,the airplane seems to have the correct speeds and engine temperatures.

I do have one question:when on the ground after landing and with the right engine in hotel mode,if I then want to shut down the right engine,do

I take it out of hotel mode first (letting the props rotate),or do I shut the right engine down in hotel mode?The manual seems to have nothing to 

say on this matter.Thanks for any replies!

It doesn't matter. The role of hotel mode it's to provide electricity and air for conditioning. For example, in real life, you land at an airport and taxi to the parking position. There, you engage prop brake and continue to use the engine no 2 in hotel mode until the GPU is connected to the aircraft, after that you can shutdown the engine. There is no reason to release the parking brake now. At startup, you will need to use the hotel mode, because the ground crew have to disconnect the GPU before propeller rotation, to take the chocks etc. All of this in hotel mode. After everyone is away from the aircraft, only then you can release the propeller brake. Rarely, after shutting down the engine with prop brake engaged, we release the prop brake for the maintenance personnel to work something at the engine and after they finish we re-engage the propeller brake for the following engine start. I hope it's clear now.

Long story short, it doesn't matter, you can do it however you want, but there is no reason to release the propeller brake before engine shutdown.

Edited by 46Pilot

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Posted (edited)

@Novej757 don't forget that the PLs in AUTO are always providing maximum power for the condition. It's like driving a car with the gas pedal constantly floored. 

@46PilotIs the Hotel model necessary to connect/disconnect the GPU?  No other turboprop comes to my mind which has such a function.

I've parked on the parking position next to ATRs quite a few times and only very seldom they used the Hotel mode and it is unbelievable noisy!

Edited by FDEdev
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Posted (edited)

Yes, it is VERY noisy!

No, it is not required for the GPU to be connected, but without it you don't have any electrical power source. The batteries feed only a few things and they drain quickly. Another interesting info is if the batteries are dead, you cannot connect the GPU, because the GPU feeds the aircraft through them and even with GPU on and plugged-in, the AVAIL light on the upperhead panel with not come on (even if you press the button, there will not happen anything). 

You can either plug in the GPU, turn on the batteries then connect the GPU by pressing the pushbutton, and after everything is done, start the engine no 2 in hotel mode, or turn on the batteries and start directly in hotel mode, if no GPU available, for example. 

Edited by 46Pilot

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Interesting, on e.g. the Dash7 and 8 we always started one or both engines and the GPU was removed afterwards. Same for shutdown. Connect GPU, then shutdown the remaining engine.

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