Why do we refer to “power” for turboprop engines and “thrust” for turbojet/fan engines?

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In jet engines, I read that thrust is related to the fuel flow rate, whereas in turboprop engines power produced is related to the fuel flow rate. What is the reason and brief math behind this?

turbofan turboprop turbojet

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In jet engines, I read that thrust is related to the fuel flow rate, whereas in turboprop engines power produced is related to the fuel flow rate. What is the reason and brief math behind this?

turbofan turboprop turbojet

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edited 2 hours ago

Pondlife

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up vote
1
down vote

favorite

up vote
1
down vote

favorite

In jet engines, I read that thrust is related to the fuel flow rate, whereas in turboprop engines power produced is related to the fuel flow rate. What is the reason and brief math behind this?

turbofan turboprop turbojet

share|improve this question

edited 2 hours ago

Pondlife

49.6k8133270

asked 4 hours ago

user5349

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user5349 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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In jet engines, I read that thrust is related to the fuel flow rate, whereas in turboprop engines power produced is related to the fuel flow rate. What is the reason and brief math behind this?

turbofan turboprop turbojet

turbofan turboprop turbojet

share|improve this question

edited 2 hours ago

Pondlife

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asked 4 hours ago

user5349

61

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edited 2 hours ago

Pondlife

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share|improve this question

edited 2 hours ago

Pondlife

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edited 2 hours ago

Pondlife

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edited 2 hours ago

Pondlife

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asked 4 hours ago

user5349

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asked 4 hours ago

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asked 4 hours ago

user5349

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61

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New contributor

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Jet engines directly produce thrust by exhausting gas (and in a modern turbo fan also moving a lot of air around them), so fuel flow rate is directly related to the thrust that is generated.

In a turbo prop the engine produces power which, via a gear box spins a propellor that generates the thrust. Since most turbo props have the ability to adjust the propeller pitch the engines power output is not always directly related to the thrust generated at a given time.

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edited 11 mins ago

gsamaras

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Dave

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
3
down vote

Jet engines directly produce thrust by exhausting gas (and in a modern turbo fan also moving a lot of air around them), so fuel flow rate is directly related to the thrust that is generated.

In a turbo prop the engine produces power which, via a gear box spins a propellor that generates the thrust. Since most turbo props have the ability to adjust the propeller pitch the engines power output is not always directly related to the thrust generated at a given time.

share|improve this answer

edited 11 mins ago

gsamaras

6301122

answered 2 hours ago

Dave

58.6k4105213

add a comment | 

up vote
3
down vote

Jet engines directly produce thrust by exhausting gas (and in a modern turbo fan also moving a lot of air around them), so fuel flow rate is directly related to the thrust that is generated.

In a turbo prop the engine produces power which, via a gear box spins a propellor that generates the thrust. Since most turbo props have the ability to adjust the propeller pitch the engines power output is not always directly related to the thrust generated at a given time.

share|improve this answer

edited 11 mins ago

gsamaras

6301122

answered 2 hours ago

Dave

58.6k4105213

add a comment | 

up vote
3
down vote

up vote
3
down vote

Jet engines directly produce thrust by exhausting gas (and in a modern turbo fan also moving a lot of air around them), so fuel flow rate is directly related to the thrust that is generated.

In a turbo prop the engine produces power which, via a gear box spins a propellor that generates the thrust. Since most turbo props have the ability to adjust the propeller pitch the engines power output is not always directly related to the thrust generated at a given time.

share|improve this answer

edited 11 mins ago

gsamaras

6301122

answered 2 hours ago

Dave

58.6k4105213

Jet engines directly produce thrust by exhausting gas (and in a modern turbo fan also moving a lot of air around them), so fuel flow rate is directly related to the thrust that is generated.

In a turbo prop the engine produces power which, via a gear box spins a propellor that generates the thrust. Since most turbo props have the ability to adjust the propeller pitch the engines power output is not always directly related to the thrust generated at a given time.

share|improve this answer

edited 11 mins ago

gsamaras

6301122

answered 2 hours ago

Dave

58.6k4105213

share|improve this answer

share|improve this answer

edited 11 mins ago

gsamaras

6301122

edited 11 mins ago

gsamaras

6301122

edited 11 mins ago

gsamaras

6301122

6301122

answered 2 hours ago

Dave

58.6k4105213

answered 2 hours ago

Dave

58.6k4105213

answered 2 hours ago

Dave

58.6k4105213

58.6k4105213

add a comment | 

add a comment | 

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