Some technical inaccuracies
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Just wanted to point out some small things I noticed. Note, I am not a TBM pilot IRL, this just comes from some things I've read in the POH and seen online.
Firstly, the elevator anti-servo tabs are incorrectly simulated. On the real TBM they work much like the tab on the stabilator of a cherokee; the tab moves in conjunction with elevator deflection. https://www.youtube.com/watch?v=-LVYY-tjs-k see timestamp 10:13 as he moves the elevator up (video is a TBM 900, but to my knowledge, they function exactly the same. This also means that when the tab is trimmed, it should move in the opposite direction as what is currently simulated in the TBM.
The next thing I noticed is with the propeller control. In the manual for the Black Square TBM it says: In single engine aircraft, the propeller blade pitch system is usually configured to drive the blades into their fully fine position automatically when oil pressure is lost. For this reason, a decrease in indicated oil pressure is expected while exercising propeller pitch on the ground.
However, the TBM 850 POH reads: Regulation is obtained through propeller blade pitch variation : counterweights drive propeller blades toward high pitch (low RPM) whereas oil pressure delivered by governor drives back blades toward low pitch (high RPM).These are two very small things, and quite frankly, not noticeable at all. Just wanted to point them out before the next update :)
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Thank you so much for your kind words and commentary! I always appreciate any small corrections.
I believe I have fixed the anti-servo tab movement as soon as I discovered it was an anti-servo tab, as opposed to a trim tab, but that would not have made it to the public build yet. I will double check before releasing the next version.
I will also have to check the oil pressure behavior while exercising the propeller (it will become obvious to me when adding the tablet interface to the TBM), because I recognize the language you quoted in the manual as being from my piston engine aircraft manuals, and it's obviously not applicable to a turbine engine aircraft in the same way.
Thanks so much for taking the time to write. One might think that I would become irritated with such nitpicking on my products, but to the contrary, when they are of this nature it tells me that people are enjoying the technical details in my aircraft with the specificity that I designed them to be. Thank you!
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Thank you very much for the fast reply! I am glad to hear you've looked into it. I am very happy with your TBM, and it has quickly become one of my favorite aircraft in flight simulation. Your attention to detail is unmatched, which is what makes your aircraft standout!
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@Black-Square said in Some technical inaccuracies:
One might think that I would become irritated with such nitpicking on my products, but to the contrary
All your products are so close to perfection... all we have left is nitpicking. 🙂
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@Lemny said in Some technical inaccuracies:
@Black-SquareAll your products are so close to perfection... all we have left is nitpicking. 🙂
Indeed, they're really fantastic.
One other thing I noticed, and I'm not sure this is wrong, is that the prop blades don't seem to move to the fully feathered position until after engine shutdown. Is that correct, or am I doing something wrong?
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I genuinely have no idea how you manage to create such in-depth aircraft that operate with such high fidelity, look and sound incredible and fly like a dream. You are a shining beacon of the FS payware community - thank you!
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@WingC3 Make sure you are pulling the propeller lever to the fully feather position (all the way back, the around the little curve for fully feathered) for 15 seconds before putting the condition lever to cutoff. This is the procedure according to the checklist.
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@Spitzbuebe I am. Are you saying that when you shut down yours the are fully feathered (graphically) before you shut the engine down? For me, that's true in the Duke, but not in the TBM. The TBM prop spins down as if it's feathered, but the blades don't actually rotate until the condition lever is cutoff.
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@WingC3 I haven't really noticed. I think the prop animation changes once it drops below a certain rpm and the blade angle becomes visible, so it may be a limitation of the animation. I don't have the duke so I'm I don't know if there were changes to the animation in that plane.
