Really loving these videos. Super surprised and disappointed that even with REP the engine functionality has so many discrepancies vs the real thing. Thanks so much for the video!
Great video!! Just what I had been searching for. Clear, as simple as is sensible without unnecessary fluff, covers both real and Sim, showing while talking through the procedure, plus tips about off nominal cases. Pretty close to perfect IMHO. Thanks hugely from a serious Sim denizen!
@@GeneStuart Thank YOU! You hooked me as a sub(!) Watched another of your pc-12 vids, going to watch as many as I can. I really relate to your approach, it speaks to me as I try to fly a pretend plane that does not work quite the way the real thing does(!!) In any case - thanks much for your efforts, can't help but think others will find your vids extremely understandable and useful. And BTW thanks for the first (only?) explanations of hot vs hung start that make any sense (at least to me). (Others I have heard say stuff like 'they are the same thing' - really? If so, why two different terms for the 'same thing'?
That's great to hear! I make these videos in hopes that they help, so I always appreciate it when someone takes the time to let me know. And about the hot start vs. hung start -- they are definitely different and, in fact, have almost nothing in common. 😁 So, I'm glad I could clear that up.
In x-plane 11 (maybe 12 too), you can save a view by entering ctrl-numpad number (eg. ctrl-8) . I've done this for the overhead panel (among others) so that I can get a clear view of the panel quickly. Many thanks for your videos. It is helpful to see how someone with real life experience in the PC-12 manages the aircraft. Cheers.
Yes! Pilatus/Pratt don't require it to be open unless you're operating on an unimproved surface where FOD might be an issue, or unless you're in icing conditions. Most operators want it open during surface and low altitude operations though, just to be safe. It doesn't raise your temps too much, so generally the added protection against FOD is worth the fuel cost.
I got the Carenado PC12 for MSFS, I'm loving that plane. Been flying it for a month straight and can't get myself to fly anything else. Not complaining though
Enjoying the content, very informative. Curious, are you familiar with the REP package for this aircraft? I'm under the impression (desktop simmer) that it does a better job of modeling several things you've brought up in your videos. Keep the great content coming, thanks for sharing with us!
Thanks for watching, and thanks for the kind words! Motivates me to keep posting. As far as the REP, I do have it installed. I installed it before ever really playing around with the base version without it, so I'm not sure how much improvement there is over the original. But, apparently the REP does model the mid-start ITT rollback (which I have noticed in the sim... pretty cool). According to the developer, it does a bunch of other stuff for the engine like makes the spool time more realistic, models hot start behavior, and tracks engine damage if you over-temp it, etc. It claims to make engine temperatures more realistic too, but they still aren't great. I'd give them a C- for temps... They're pretty inaccurate during several phases of flight. But, still might be an improvement over the original. Still worth getting I think.
@@GeneStuart thanks for the response. I'm afraid I don't see the crosswind problem as the feathered prop would tend to be equally impacted both top and bottom. I'm not a turbine guy, but I could imagine that having too much back pressure in the exhaust during startup could be a problem that would give rise to a tailwind limitation for startup. But for a feathered prop, it's hard to see how a tailwind would be a problem. Could it be that your reasoning dates back to an unfeathered prop, not the PC-12 specifically? Thank you for sharing your knowledge and experience.
Think of it more in terms of tailwind component, not a direct tailwind. Take a quartering tailwind, for instance. Even though we feather the prop during shutdown, we always install prop anchors before leaving the airplane because the prop will windmill in a strong enough wind, even though it's feathered. Any time there's surface area exposed, the wind can grab on and start to rotate the prop. It doesn't take much to get it moving. You are right that backflow through the engine is another reason for the tailwind limitation. Counterpressure on the exhaust flow can result in higher hot section temps... not a good thing. In a strong tailwind it's also possible to ingest exhaust back through the intake which leads to diminished combustion and higher temps. For a variety of reasons, airplanes work better when the airflow is nose to tail. Cheers!
@@GeneStuart sure, there will be small differential pressures on the blades caused by the airflow not being consistent due to interacting with the aircraft and ground leading to windmilling, but that is pretty negligible and would happen in a headwind as well as a tailwind, so I'm afraid it still doesn't make sense as support for a tailwind limitation. I'm sorry if I'm being dense.
@@GeneStuart I thought the POH might add some clarity, so I checked the POH available online. I couldn't find a tailwind limit looking at engine start in sections 2, 3, and 4, and searching for "tailwind". Of course, there are likely many versions of it, though. If you happen to know what version has the limit and/or where it is in the POH, I would appreciate the pointer.
Really loving these videos.
Super surprised and disappointed that even with REP the engine functionality has so many discrepancies vs the real thing.
Thanks so much for the video!
Thanks for watching! 😁
Took me a while to get this: *this is a SIMULATION!* So freaking REALISTIC!
The MSFS2020 version is even better!
Great video!! Just what I had been searching for. Clear, as simple as is sensible without unnecessary fluff, covers both real and Sim, showing while talking through the procedure, plus tips about off nominal cases. Pretty close to perfect IMHO. Thanks hugely from a serious Sim denizen!
Thank you so much! It's great to get feedback like this, and it's nice to know my videos are helping my simmer and pilot friends out there. Cheers!
@@GeneStuart Thank YOU! You hooked me as a sub(!) Watched another of your pc-12 vids, going to watch as many as I can. I really relate to your approach, it speaks to me as I try to fly a pretend plane that does not work quite the way the real thing does(!!) In any case - thanks much for your efforts, can't help but think others will find your vids extremely understandable and useful. And BTW thanks for the first (only?) explanations of hot vs hung start that make any sense (at least to me). (Others I have heard say stuff like 'they are the same thing' - really? If so, why two different terms for the 'same thing'?
That's great to hear! I make these videos in hopes that they help, so I always appreciate it when someone takes the time to let me know. And about the hot start vs. hung start -- they are definitely different and, in fact, have almost nothing in common. 😁 So, I'm glad I could clear that up.
In x-plane 11 (maybe 12 too), you can save a view by entering ctrl-numpad number (eg. ctrl-8) . I've done this for the overhead panel (among others) so that I can get a clear view of the panel quickly. Many thanks for your videos. It is helpful to see how someone with real life experience in the PC-12 manages the aircraft. Cheers.
Thanks for the tip! Your glider videos are beautiful.
I have been watching all your PC_12 videos and have learned so much. Later I plan on getting training for rating in the PC-12. God bless!
That's wonderful to hear. Thanks for watching! Cheers!
Great informational video!
Thanks for watching!
Awesome content, glad to see you’re posting again!
Thanks, Matt! Glad to see you back too!
Does the inertial separator stay open during start?
Yes! Pilatus/Pratt don't require it to be open unless you're operating on an unimproved surface where FOD might be an issue, or unless you're in icing conditions. Most operators want it open during surface and low altitude operations though, just to be safe. It doesn't raise your temps too much, so generally the added protection against FOD is worth the fuel cost.
I got the Carenado PC12 for MSFS, I'm loving that plane. Been flying it for a month straight and can't get myself to fly anything else. Not complaining though
Yeah, it's pretty great. Not perfect, but I love it.
I'm in the exact same situation, it feels like home flying the PC-12 although I knew nothing about the plane before the MSFS version!
Enjoying the content, very informative. Curious, are you familiar with the REP package for this aircraft? I'm under the impression (desktop simmer) that it does a better job of modeling several things you've brought up in your videos. Keep the great content coming, thanks for sharing with us!
Thanks for watching, and thanks for the kind words! Motivates me to keep posting. As far as the REP, I do have it installed. I installed it before ever really playing around with the base version without it, so I'm not sure how much improvement there is over the original. But, apparently the REP does model the mid-start ITT rollback (which I have noticed in the sim... pretty cool). According to the developer, it does a bunch of other stuff for the engine like makes the spool time more realistic, models hot start behavior, and tracks engine damage if you over-temp it, etc. It claims to make engine temperatures more realistic too, but they still aren't great. I'd give them a C- for temps... They're pretty inaccurate during several phases of flight. But, still might be an improvement over the original. Still worth getting I think.
Doesn't the prop go flat (no angle of attack) at shutdown? If so, why would a tailwind spin it the wrong way?
A feathered prop is less susceptible to windmilling, but it can still windmill in a crosswind.
@@GeneStuart thanks for the response. I'm afraid I don't see the crosswind problem as the feathered prop would tend to be equally impacted both top and bottom. I'm not a turbine guy, but I could imagine that having too much back pressure in the exhaust during startup could be a problem that would give rise to a tailwind limitation for startup. But for a feathered prop, it's hard to see how a tailwind would be a problem. Could it be that your reasoning dates back to an unfeathered prop, not the PC-12 specifically?
Thank you for sharing your knowledge and experience.
Think of it more in terms of tailwind component, not a direct tailwind. Take a quartering tailwind, for instance. Even though we feather the prop during shutdown, we always install prop anchors before leaving the airplane because the prop will windmill in a strong enough wind, even though it's feathered. Any time there's surface area exposed, the wind can grab on and start to rotate the prop. It doesn't take much to get it moving. You are right that backflow through the engine is another reason for the tailwind limitation. Counterpressure on the exhaust flow can result in higher hot section temps... not a good thing. In a strong tailwind it's also possible to ingest exhaust back through the intake which leads to diminished combustion and higher temps. For a variety of reasons, airplanes work better when the airflow is nose to tail. Cheers!
@@GeneStuart sure, there will be small differential pressures on the blades caused by the airflow not being consistent due to interacting with the aircraft and ground leading to windmilling, but that is pretty negligible and would happen in a headwind as well as a tailwind, so I'm afraid it still doesn't make sense as support for a tailwind limitation. I'm sorry if I'm being dense.
@@GeneStuart I thought the POH might add some clarity, so I checked the POH available online. I couldn't find a tailwind limit looking at engine start in sections 2, 3, and 4, and searching for "tailwind". Of course, there are likely many versions of it, though. If you happen to know what version has the limit and/or where it is in the POH, I would appreciate the pointer.