Standard:

• ARP427

Reaffirmed:

• 1991-05-01

Revised:

• 1958-02-15

Revision:

• Historical. Access the latest revision: ARP427A

Issuing:

• A-4 Aircraft Instruments Committee

Scope:

This Aeronautical Recommended Practice covers two types of two unit Pressure Ratio Instruments each of which consist of of a Transducer and an Indicator. The Transducer computes the ratio of two pressures and converts this ratio to a synchro electrical signal which is transmitted to the Indicator.Type I - All material in this document applies to this classification only.Type II - Additional material for this classification will be added to superseding issues as the state of the art permits.

History:

Standard	Published	Revision	Status
ARP427A	2001-07-01	Latest	Reaffirmed
ARP427	1958-02-15	Historical	Reaffirmed

AKA:

• SAE ARP 427

Sector:

• Aerospace

Topic:

• Avionics
• Aircraft instruments
• Aircraft displays
• Flight control systems
• Flight management systems
• Displays
• Smoke detection
• Instrument panels
• Parts
• Safety
• Fire detection
• Tests and Testing