Microsoft Flight Simulator | Blacksquare Piston Grand Duke |Flight Levels Tutorial |

Supplemental tutorial for the Flying the Duke series. How to manage the engines from critcal altitude to 30000 feet
#blacksquare #justflight

[@johnwithanr]

Thxs for these tutorials. We all need help flying this fantastic aircraft.

[@V_F_Diaries]

You very welcome and glad I’m able to help

[@juliashenandoah3965]

Good trick keeping the heater back up by using the second heating system. This can also be used when the primary heating system the Janitrol fuel burner fails. Which it does rather often...

[@V_F_Diaries]

It hasn't failed yet for me in the sim but im sure it will

[@adilakram2586]

How did you manage to get this aircraft @25K with manifold 35.5 as I can see in this video your cruise settings . I am also trying to climb with these settings but my manifold pressure decreased near to around 23k and with max throttle my manifold pressure is 33 even during cruise @25K. I am following the performance tables with max payload of around 6990LBS at take off. weather is clear skies ISA. Please help or if possible can you make a video from take-off to 30K? I really appreciate!.

[@V_F_Diaries]

I really should do another video with this…I created this tutorial before they fixed the turbocharger being over powered. The quick answer is to start leaning the mixture slowly, it changes based on atmospheric conditions, but a good rule of thumb will be fl200. You’ll see fuel flow start to drop at this altitude. As you slowly lean fuel flow will come up, when you see it drop again lean more do this from fl200 to fl250. Manifold will drop when past the critical altitude and operating above fl260 shows that throttle operate at full on the charts, and you may need to shallow your climb to maintain airspeed. This method will get you to fl300.

[@MrHenreee]

Do you leave the mixture full rich on climbout to FL250? I noticed the manual says that you don't really need to change it, but am not sure if that applies to all situations.

[@V_F_Diaries]

Yes mixtures are kept full rich to 25000’ (critical altitude) the turbocharger maintains it till then. Then you will start your leaning procedure when climbing above that

[@V_F_Diaries]

I want to add that it’s 25000’ Density altitude so it can fluctuate you might start to see a fall of passing FL240 or it might not start falling off until as high as FL260 it depends on the atmospheric conditions on that day

[@V_F_Diaries]

pilotinstitute.com/how-to-calculate-density-altitude/ Here is a good explanation on how to calculate density altitude for when your flight planning your trip

[@Torcsen]

In the manual it says 243KTAS@ FL300@75%. I'm getting approximately 300KTAS. It seems like you too are cruising alot faster?

[@V_F_Diaries]

Yes but true airspeed doesn't account for wind, a good tailwind will push you alot faster across the ground. The true airspeed calculations I have done are pretty close to the book.

[@Torcsen]

Hm... Yeah. Before you got established at cruise you had 190kts IAS. But I see you are doing 170kts indicated at FL300 after leaning. At standard atmosphere that corresponds to approximately 280kts true airspeed.

[@V_F_Diaries]

@Torcsen yeah your right…ill have to check that out

[@Torcsen]

@@V_F_Diaries I actually found a thread on justflight forum regarding this issue. Blacksquare has responded and acknowledged the issue. I think its only a Grand Duke issue

[@V_F_Diaries]

You know what come to think of it i shouldn’t be able to get 1700nm range either no matter what lean setting i use