gotWXdagain
Polished Member
Gas pressure at intake vs Nozzle.
That was my sarcastic way of pointing out that I already mentioned pressures in my previous post.
How much you snort vs how hard you fart.
Gas pressure at intake vs Nozzle.
That was my sarcastic way of pointing out that I already mentioned pressures in my previous post.
Well, technically the Constellation and DC7 ARE pre-FADEC so the answer could be yes...
50 degrees lean of peak doesn't exist in turbine engines, the condition is either fuel on or off. FADEC should monitor the parameters of the engine and adjust as necessary or shut it down before exceeding limits. Whereas non-FADEC engines require a trained mammal to watch temps, pressures, rpms and to intervene before failure occurs.
The P stands for P_______ ? I see what your saying but technically ERP is a ratio, but a ratio of ________ ?
That was my sarcastic way of pointing out that I already mentioned pressures in my previous post.
Uh......A ratio of exhaust gasses.
You gotta be more specific. Oil pressure, hydraulic pressure, brake pressure, bleed duct pressure?
Just saying pressure is about as useless as a pilot telling a mechanic, “The doohickey on the kergigger is making a funny noise. Fix it.”
Yeah, too much bourbon last night! Mea CulpaUh......
Nope!
Don’t forget about water injection. That’s controlling the mixture.
Point of order.....
The Harrier and it’s Pegasus series engine actually does have water injection and a limited onboard storage (about 5 min worth) in order to hover under high gross weight conditions.
That’s an interesting tidbit.
As far as airliners go, 707’s and some early 747’s had water injection. I think the BAC-111 had it to.
Point of order.....
The Harrier and it’s Pegasus series engine actually does have water injection and a limited onboard storage (about 5 min worth) in order to hover under high gross weight conditions.
That’s an interesting tidbit.
As far as airliners go, 707’s and some early 747’s had water injection. I think the BAC-111 had it to.
In the Jo, it's the glow let's you know.I still have vivid memories of long night hauls in the 18. Setting the mixture was easier at night, just watch the grey flame cone coming out the exhaust.
The fuel in a turbine engine is metered by a fuel control unit, there is a mixture but it's based on throttle position, various pressures, and RPM.
Hydromechanical fuel controllers, like in older jets don't include protection for things like over temp, overspeed, stall etc.
Electro/hydromechanical, like in the good old CRJ-200 may have some of those protections or not, and may have some features like the CRJ's N1 speed control.
FADEC gives the computer full control over everything.
That's it in a pretty small nutshell.
Sent from my Moto Z (2) using Tapatalk
I think you ought to be able to burn it up if you really want to.The fuel in a turbine engine is metered by a fuel control unit, there is a mixture but it's based on throttle position, various pressures, and RPM.
Hydromechanical fuel controllers, like in older jets don't include protection for things like over temp, overspeed, stall etc.
Electro/hydromechanical, like in the good old CRJ-200 may have some of those protections or not, and may have some features like the CRJ's N1 speed control.
FADEC gives the computer full control over everything.
That's it in a pretty small nutshell.
Sent from my Moto Z (2) using Tapatalk
Which is why the ERJ was the shizznit. #RJWars
So, what you're saying is... you need some trim to keep from getting too hot??Many older turbine engines had fuel trim selectors that would increase or decrease the fuel flow separately of the throttles.
So if your trim settings were wrong on startup, you could easily smoke the engine if you weren't paying attention.
Man the jib, and keep her close hauled, and mr. Mowet, beat to quarters.So, what you're saying is... you need some trim to keep from getting too hot??
I believe you will find wide concurrence with that assessment.
Just don't go and over-stress the main spar and you'll have yourself a good day.