N2

Noun

alt-of alternative

(aviation) The rotational speed of the high-pressure spool of a two-spool gas turbine engine or the intermediate-pressure spool of a three-spool gas turbine engine, expressed as a percentage of a certain reference rotational speed.

Japanese Meaning

航空工学において、二段式ガスタービンエンジンの高圧スプールの回転数、または三段式ガスタービンエンジンの中圧スプールの回転数を、一定の基準回転数に対するパーセンテージとして表したもの

What is this buttons?

During the preflight checks, the engineers recorded N2 to verify the engine's performance under simulated takeoff conditions.

Google Translation / DeepL Translation

事前点検の間、整備士はシミュレートされた離陸条件下でのエンジン性能を確認するために、高圧軸の回転速度（基準回転速度に対する百分率）を記録した。

Details

Sense（1）

The inputs into the computerized JT9D condition monitoring program for this engine from September 10 through 16 likewise reflected adverse changes in trends of vital operating parameters which were indicative of the possibility of a serious engine malfunction. These data points showed a progressive increase of EGT and fuel flow while N2 showed a progressive decrease over the same period of time.

Google Translation / DeepL Translation

Details

Sense（2）

Alternative form of N₂

N2s

（ plural ）

Details

N2

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N2

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