A civil aircraft performing instrument flight shall observe instrument flight rules.

进行仪表飞行的民用航空器，应当遵守仪表飞行规则。

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Examples of this type of control include formation flying, instrument flight, and landing.

这类操纵的例子包括编队飞行，仪表飞行和着陆。

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Several business aircraft, regional jets and helicopters certified for instrument flight rules are included in this certification.

这次论证包括根据仪器飞行规则所鉴定的几架商业飞机、地域性飞机和直升机。

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This includes flying under both visual flight rules and instrument-rated rules.

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He's also an instrument-rated pilot and wrote Free Flight with passion and authority.

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Pilots who are not instrument-rated and do not file flight plans had been banned from flying near 30 major metropolitan areas for national security concerns.

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