GDALE14853 Posted March 21, 2020 Share Posted March 21, 2020 Hi, I have the RealAir Beech Duke piston twin, and It's about my favourite GA twin to fly in FSX. I have had one or two issues, though, in weather conditions that could be expected to produce icing. I have suffered progressive power loss, as though air intakes icing up, but have been unable to find any control for 'Hot Air to intakes'. Does the Duke have such a thing, or how else should I recover from the power-loss issue? ASUS main board with Quad-core CPU, 8Gb RAM, Geforce 7200 graphics, using Multicore next to define full CPU usage by FSX Gold SP2 Link to comment Share on other sites More sharing options...
mrzippy Posted March 21, 2020 Share Posted March 21, 2020 (edited) No engine deicing switches in the cockpit? How about hitting the h key? From the aircraft.cfg: [deice_system] structural_deice_type=3 //0 = None, 1 = Heated Leading Edge, 2 = Bleed Air Boots, 3 = Eng Pump Boots I did find these switches in the cockpit for Pitot tube heat and deicing. Edited March 21, 2020 by mrzippy Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
lnuss Posted March 22, 2020 Share Posted March 22, 2020 Try something such as "alternate air." Turbine engine might have heated intakes, but on fuel injected piston engines it's typically just alternate (carb heat is only for carburetors). I don't know how it's configured in that aircraft, but the above should help. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
GDALE14853 Posted March 25, 2020 Author Share Posted March 25, 2020 Yeah, I found the various de-icing switches etc, and Pitot heat certainly works OK, as in icing conditions I soon lost Airspeed indication without Pitot Heat On! The 'Defrost Air' did not appear to be a cure for my loss of power, though! Still experimenting.:) Not yet tried the 'h' key - next time up! Link to comment Share on other sites More sharing options...
pzl 104 Posted March 26, 2020 Share Posted March 26, 2020 Have you tried prop heat? This normally cures the power problem with fuel injected engines in FSX/P3D. If encountering actual icing conditions I would use all of the de/anti-icing equipment available. Defrost air doesn't belong to the de-icing equipment. Link to comment Share on other sites More sharing options...
GDALE14853 Posted March 28, 2020 Author Share Posted March 28, 2020 Must admit, not tried the Prop de-ice heat when I lost power - must have a go at that when I can re-create the 'nasty' flight :pilot: Link to comment Share on other sites More sharing options...
GDALE14853 Posted April 10, 2020 Author Share Posted April 10, 2020 Had another flight in 'Duke' where icing appeared - tried 'Prop Heat' and did not get any power loss! Thanks for the tip pzl 104 - I'll remember that one! Link to comment Share on other sites More sharing options...
GDALE14853 Posted May 12, 2020 Author Share Posted May 12, 2020 Flight out of Stornoway using AS16 weather (real-time) IFR instructed climb to 7000, pitot iced up as entered cloud, switched on all deicing, continued climb, power started decreasing steadily till could no longer maintain altitude, dropped like a stone to about 3000 before power came back! Castigated by ATC! Climb again, got to 7000 but started losing power again! abandoned flight! Guess the Prop Heat isn't curing my power loss in icing conditions after all!:( Link to comment Share on other sites More sharing options...
mrzippy Posted May 12, 2020 Share Posted May 12, 2020 How about pitot heat? Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
tiger1962 Posted May 12, 2020 Share Posted May 12, 2020 Power loss due to icing can be prevented by switching on Carb Heat - there'll be a switch or a pull lever on the lower panel for it somewhere. Sent from my KFDOWI using Tapatalk Tim Wright "The older I get, the better I was..." Xbox Series X, Asus Prime H510M-K, Intel Core i5-11400F 4.40GHz, 16Gb DDR4 3200, 2TB WD Black NVME SSD, 1TB Samsung SATA SSD NVidia RTX3060 Ti 8Gb, Logitech Flight Yoke System, CH Pro Pedals, Acer K272HL 27", Windows 11 Home x64 Link to comment Share on other sites More sharing options...
GDALE14853 Posted May 13, 2020 Author Share Posted May 13, 2020 Well before I start to experience the power loss I get Pitot icing if I've not put the heat switch on for that. Since it doesn't really cause any immediate problem I usually leave it to give me a first indication of icing conditions, and start anti-icing as soon as it appears! The only thing I've been unable to find in the Real Air Duke with respect to anti-icing is any kind of control for Engine Air-intake heating! The Duke has a few pull levers on lower panel for control of various air controls but all seem to relate to cabin air. When my plane is dropping out of the sky with hardly any power available, I've had a go at pretty near any control I thought might have an effect. It just baffles me that I haven't found a cure yet! I have never flown a real-time Duke, (had a very nice trip in a Beech Duchess once), but surprised not to be able to find a control of some sort for anti-icing of air intakes.:confused: Link to comment Share on other sites More sharing options...
mrzippy Posted May 13, 2020 Share Posted May 13, 2020 Heaters for the air intake should be carb heat. Either a panel switch or hit the h key on your keyboard. Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
simtech95209 Posted May 13, 2020 Share Posted May 13, 2020 GDALE..As Mr. Z stated earlier, what happened when you depress the "H" key??. I found that the default Mooney loses power in icing conditions and the only correction is the H key; not prop deice, not pitot heat..nada. It's not mentioned anywhere except it's the toggle for "Alternate Air" in the key assignments. In fuel injected engines, that's what's required IRL. Please let us know how that works for you.. I9-10850K, Mugen 5 cooler, Gigagbyte Aorus Z490 Master, 2TB Samsung 980 Pro M.2, 1TB Samsung 970 Plus, 2TB Samsung 870evo, Corsair RM-850, G-Skill DDR-4 3600, Lian Li LanCool Mesh, Nvidia 3070Ti, Honeycomb Alpha and Bravo, MFG Crosswind pedals, Win10 Pro Link to comment Share on other sites More sharing options...
lnuss Posted May 14, 2020 Share Posted May 14, 2020 Interesting -- posts #3 and #13 have the same info, 10 apart. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
GDALE14853 Posted May 14, 2020 Author Share Posted May 14, 2020 I'll retry the Stornoway flight and give the 'H' key a try - there is no switch or lever for 'Carb Heat' on the panel in VC or 2D as far as I can tell! Link to comment Share on other sites More sharing options...
mallcott Posted May 14, 2020 Share Posted May 14, 2020 Well before I start to experience the power loss I get Pitot icing if I've not put the heat switch on for that. Since it doesn't really cause any immediate problem I usually leave it to give me a first indication of icing conditions, and start anti-icing as soon as it appears! The only thing I've been unable to find in the Real Air Duke with respect to anti-icing is any kind of control for Engine Air-intake heating! The Duke has a few pull levers on lower panel for control of various air controls but all seem to relate to cabin air. When my plane is dropping out of the sky with hardly any power available, I've had a go at pretty near any control I thought might have an effect. It just baffles me that I haven't found a cure yet! I have never flown a real-time Duke, (had a very nice trip in a Beech Duchess once), but surprised not to be able to find a control of some sort for anti-icing of air intakes.:confused: Incorrect operation for ANY kind of heat: Apply application at first sign of power loss, leave on until leaving the area. Boost pumps should be ON at any ambient temperature below 32 degrees. It's in the manual, which is not optional! Link to comment Share on other sites More sharing options...
mrzippy Posted May 14, 2020 Share Posted May 14, 2020 A quick test that I use to do is to sit and stare at the panel and press shift plus h or just the h key on my keyboard and watch to see any panel switches move😠Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
lnuss Posted May 14, 2020 Share Posted May 14, 2020 there is no switch or lever for 'Carb Heat' on the panel in VC or 2D as far as I can tell! If we're still talking about the Duke, there won't be carb heat, since it has fuel injected engines. But there should be a control, perhaps under the panel, for alternate air. Maybe the 'H' key would work, as Zippy suggests. Does that Real Air Duke come with an operator's manual? Perhaps something under emergency procedures would give a clue? Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
Ray Hff Posted May 14, 2020 Share Posted May 14, 2020 You might try closing the cowl flaps. Control is on the left panel. Link to comment Share on other sites More sharing options...
lnuss Posted May 14, 2020 Share Posted May 14, 2020 Cowl flaps won't do much for icing/power loss, and they should be open for taxiing, takeoff and climb, though once at cruise they should be closed until either you're climbing again or you're on the ground. They do, of course, affect engine temperature (not intake air so much, though), and they are primarily to keep the engine from getting too hot and causing engine damage, as well as allowing you to (along with power management) keep them from cooling too fast and causing engine damage. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
Ray Hff Posted May 14, 2020 Share Posted May 14, 2020 If you forget to close cowl flaps in cruise, cooling drag will cause some power loss for a given power setting. Progressive power loss was one of GDALE14853's issues. Link to comment Share on other sites More sharing options...
lnuss Posted May 14, 2020 Share Posted May 14, 2020 Added drag, while it slows you down some, isn't power loss. There might be some slight power loss from the engine temp not being optimized, but not that would match what I understood the OP to say. Of course misuse of the cowl flaps in real life would cause engine damage, which could, indeed, cause power loss. And who is GDALE14853? Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
Ray Hff Posted May 14, 2020 Share Posted May 14, 2020 GDALE14853's the OP. Link to comment Share on other sites More sharing options...
lnuss Posted May 14, 2020 Share Posted May 14, 2020 So it is -- I thought your reference was to a post someone else made, but forgot the specific OP ID -- sorry 'bout that. I gotta pay more attention, but sometimes forget folks' ID that I don't see very often. Larry N. As Skylab would say: Remember: Aviation is NOT an exact Science! Link to comment Share on other sites More sharing options...
GDALE14853 Posted May 16, 2020 Author Share Posted May 16, 2020 Thanks to all you guys for your help. Sure enough, the 'H' key cures the power loss!:) I'm so used to looking to the panel for the appropriate control, and I 'fly' the sim with full yoke, quadrants and pedals, I forget that sim flying has a whole host of commands by keyboard input that I very rarely actually use! At least now I can stop falling out of the sky in cold clouds! I've set a switch on quadrant for Engine de-ice as well:) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now