Altitude performance
-
Hello,
Great airplane.
Is there any altitude calculation performance for this aircraft?
And optimum cruising altitude?
The manual only refers to 31.000ft ceiling, but I climbed with full weight and it struggle to get there (250kts and, I think, appropriate N1). Maybe I'm doing something wrong.
Anyway, there is, or full weight should climb to top ceiling easily?
Thank you! -
The Max Altitude Ceiling spec for any aircraft is by definition the maximum altitude it can achieve at max weight, and the climb performance at or near that altitude will normally be less than 500 fpm. No aircraft can "easily" achieve Ceiling Altitude.
-
Hello,
Great airplane.
Is there any altitude calculation performance for this aircraft?
And optimum cruising altitude?
The manual only refers to 31.000ft ceiling, but I climbed with full weight and it struggle to get there (250kts and, I think, appropriate N1). Maybe I'm doing something wrong.
Anyway, there is, or full weight should climb to top ceiling easily?
Thank you!@tcarmona said in Altitude performance:
it struggle to get there
No, that's exactly what it's like in 'real life'. In my 146 days I can't recall going above FL280 (this was after the engines had received the 'roll-back' MOD that had restricted it to FL260) and in the RJ, it was possible to make it to 310 but it required careful handling and 'coaxing'.
-
The Max Altitude Ceiling spec for any aircraft is by definition the maximum altitude it can achieve at max weight, and the climb performance at or near that altitude will normally be less than 500 fpm. No aircraft can "easily" achieve Ceiling Altitude.
@retiredman93231 Hello
Thank you very much for your answers.
I am a PPL pilot so I have the notion of air density, pressure altitude in relation with weight for the performance of an aircraft.
I flown this plane at 35.000 feet easily, pushing beyond limits (we are in virtual world so no worries), that's not my problem, those are the experiments you do on first days with the aircraft. :-)
When you turn to real simulation, that's the funny part, so what I am asking is for the step climb (with loosing fuel weight along route). This Airbus equivalent table:
![Screenshot 2022-05-29 132438.jpg]
Maybe a ceiling of 31.000ft is to low for such kind of management. I am not a commercial pilot, I don't know.Thank you again!
-
I’d have to look, but I doubt there is any kind of step climb table in the performance section of the flight manual.
This is an aircraft designed for high density, point to point regional routes with the longest sectors around 2-3 hours. It does carry lots of fuel, so it has impressive endurance given it’s role as a “regional” jet - but it never really was ‘economized’ to be operated that way.
Any efficiency gained from step climbing would be negligible.
A 146, especially the -300, with a hefty load and lots of fuel will struggle to get anywhere in the upper twenties, definitely
God forbid you need the engine anti-ice on, you’ll be struggling to get above 1000 ft/min some days.
-
@retiredman93231 Hello
Thank you very much for your answers.
I am a PPL pilot so I have the notion of air density, pressure altitude in relation with weight for the performance of an aircraft.
I flown this plane at 35.000 feet easily, pushing beyond limits (we are in virtual world so no worries), that's not my problem, those are the experiments you do on first days with the aircraft. :-)
When you turn to real simulation, that's the funny part, so what I am asking is for the step climb (with loosing fuel weight along route). This Airbus equivalent table: ![Screenshot 2022-05-29 132438.jpg]
Maybe a ceiling of 31.000ft is to low for such kind of management. I am not a commercial pilot, I don't know.Thank you again!
-
@tcarmona You are trying to compare chalk to cheese; it's an impossible (and fairly nugatory) exercise.
-
@tcarmona You are trying to compare chalk to cheese; it's an impossible (and fairly nugatory) exercise.
-
I’d have to look, but I doubt there is any kind of step climb table in the performance section of the flight manual.
This is an aircraft designed for high density, point to point regional routes with the longest sectors around 2-3 hours. It does carry lots of fuel, so it has impressive endurance given it’s role as a “regional” jet - but it never really was ‘economized’ to be operated that way.
Any efficiency gained from step climbing would be negligible.
A 146, especially the -300, with a hefty load and lots of fuel will struggle to get anywhere in the upper twenties, definitely
God forbid you need the engine anti-ice on, you’ll be struggling to get above 1000 ft/min some days.
-
@plhought Understand, thank you for your answer. With the required N1, climbing at 250kts IAS, with full weight you can see the struggle, that was the reason I asked. Thank you.
-
@tcarmona If it helps, for optimal climb performance I'd suggest using TO mode for take-off and initial climb, then switch to TGT 820c until approx. 15,000ft when you can increase to 840c. Cruising at 740c usually works out OK.
