Hossfly68 Posted January 17, 2018 Share Posted January 17, 2018 I've been exploring a lot of wintery flying since I downloaded FSRealWX and we're having snow here on the Gulf. Did a lot of real life winter flying when I lived in Memphis, but not a lot since moving to Mobile. Rarely ever did it in the sim, but with real weather again, I've been exploring and I kept losing power at relatively low altitudes. Played with the mixture, but that wasn't it. Didn't have "Failures" checked, so that wasn't it. Thinking back to my real life days in a 152, it almost seemed like carb icing. Hit the "H" key in frustration. Would ya believe?!?!? All this time I thought I was flying a fuel injected Cessna but some bass-ackwards mechanic stuck a carb on it! Did some forum searching and found out that it's a known bug in the FS series dating back to FS98. I didn't keep searching to see if anybody had come up with a cure though. Just thought I'd let everybody else (who didn't know about this) in on the secret. Link to comment Share on other sites More sharing options...
mrzippy Posted January 17, 2018 Share Posted January 17, 2018 My aircraft.cfg says: fuel_metering_type= 0 //0=Fuel Injected, 1=Gravity Carburetor, 2=Aerobatic Carburetor Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
il88pp Posted January 17, 2018 Share Posted January 17, 2018 H is pivot heat. Not carb heat. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
mrzippy Posted January 17, 2018 Share Posted January 17, 2018 H is pivot heat. Not carb heat. I may stand corrected if you are referring to H as (shift+h). It gets confusing, sometimes. Will carb heat also heat up a throttle-body in a fuel injection system? Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
Hossfly68 Posted January 17, 2018 Author Share Posted January 17, 2018 Well, all I know is I hit the "H" key (by itself) and my power came back. Already had the pitot heat on, and asi was functioning correctly. Link to comment Share on other sites More sharing options...
Hossfly68 Posted January 17, 2018 Author Share Posted January 17, 2018 Just one of the posts I found about the problem https://www.flightsim.com/vbfs/showthread.php?221134-Drop-in-RPM-cesna-skyhawk-172SP-in-below-freezing-temps&highlight=Rpm+drop+default+cessna Link to comment Share on other sites More sharing options...
okbob Posted January 17, 2018 Share Posted January 17, 2018 Yep, and real Skyhawks had factory-fuel injection, starting in the middle 1990s with the Lycoming O-360s. Cool beans. Link to comment Share on other sites More sharing options...
il88pp Posted January 17, 2018 Share Posted January 17, 2018 My bad, shift H is pitot heat. Sorry. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
Hossfly68 Posted January 17, 2018 Author Share Posted January 17, 2018 Yep, and real Skyhawks had factory-fuel injection, starting in the middle 1990s with the Lycoming O-360s. Cool beans. Flown em both. But I knew which one I was flying at the time. FS Skyhawk is supposed to be fuel injected. Granted, in the overall scheme of things, it's a tiny problem.. Link to comment Share on other sites More sharing options...
PhantomTweak Posted January 17, 2018 Share Posted January 17, 2018 I'm no expert (X is an unknown quantity, and a Spurt is a drip under pressure. Think about it... :rolleyes: ), but I believe the air intake route, even for an injected engine, can Ice, under the right conditions, no? I don't know what sort of routing or other devices the air intake of an injected engine has, but it seems to me it's possible FS just says "It's NOT a jet. It can have intake icing." Just a thought. I get so few, so seldom, and they die of loneliness so fast, I wanted to get it out before it went out the left ear... :p Have fun, all! Pat☺ [sIGPIC][/sIGPIC] Had a thought...then there was the smell of something burning, and sparks, and then a big fire, and then the lights went out! I guess I better not do that again! Sgt, USMC, 10 years proud service, Inactive reserve now :D Link to comment Share on other sites More sharing options...
mrzippy Posted January 17, 2018 Share Posted January 17, 2018 Just a thought. I get so few, so seldom, and they die of loneliness so fast, I wanted to get it out before it went out the left ear... :p Have fun, all! Pat☺ Sorta like a fart in a windstorm, eh?;) Still thinking about a new flightsim only computer! Link to comment Share on other sites More sharing options...
PhantomTweak Posted January 18, 2018 Share Posted January 18, 2018 Sorta like a fart in a windstorm, eh?;) Well, I don't usually make those out my left, or right, ears, but, ummm....ok... :rolleyes: ;) Pat☺ [sIGPIC][/sIGPIC] Had a thought...then there was the smell of something burning, and sparks, and then a big fire, and then the lights went out! I guess I better not do that again! Sgt, USMC, 10 years proud service, Inactive reserve now :D Link to comment Share on other sites More sharing options...
ianhr Posted January 18, 2018 Share Posted January 18, 2018 You mean "pitot". And it IS carb heat by default. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
mikeandpatty Posted January 18, 2018 Share Posted January 18, 2018 Fuel injection has no "throttle plate" / throttle venturi body as used in a carb; it has a "sorta" throttle plate that is an airflow regulator controlled by the throttle, though and is squirted directly into the intake manifold just upstream of each cylinder head on the air intake stroke. The air acceleration and vaporizing fuel in a throttle venturi causes a temperature drop from OAT, and is lower than OAT. Fuel Injection does not need "carb heat", though icing due to water contamination of fuel can be an issue. A nice article can be seen here: http://www.boldmethod.com/learn-to-fly/systems/carbureted-vs-fuel-injected-engines-in-your-airplane-and-how-it-works/ Link to comment Share on other sites More sharing options...
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