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Standard

Indicator, Pressure, 1 1/2-Inch, Integrally Lighted

2012-08-22
CURRENT
AS23479A
This specification covers design requirements and all performance requirements for the procurement of single and dual hermetically sealed, integrally lighted, remote indicating, pressure indicators.
Standard

Accelerometer Group, Counting (MS25447 and MS25448)

2012-08-22
CURRENT
AS22145A
This specification covers the design and performance requirements for a single axis, four load-factor level counting accelerometer group referred to hereafter as “equipment.”
Standard

Flight Directors (Turbine-Powered Subsonic Aircraft)

2012-08-22
CURRENT
AS406A
This standard covers flight directors for use on aircraft to indicate to the pilot, by visual means, the correct control application for the operation of an aircraft in accordance with a preselected flight plan.
Standard

Automatic Pilots

2012-08-22
CURRENT
AS402C
This Aeronautical Standard covers Automatic Pilots intended for use on aircraft to automatically operate the aerodynamic controls to maintain flight and/or to provide maneuvering about the three axes through servo control.
Standard

Compass; Magnetic, Pilot's Standby

2012-08-22
CURRENT
AS5604A
This specification covers the design requirements and all performance requirements for procurement of 1 7/8 inch dial pilot’s standby compasses as specified herein.
Standard

Fuel and Oil Quantity Instruments

2012-08-22
CURRENT
AS405D
This Aeronautical Standard covers two basic types of instruments as follows: Type I - Float Instruments Type II - Capacitance Instruments
Standard

Airspeed Tubes Electrically Heated

2002-08-14
CURRENT
AS393B
This aeronautical standard covers two basic types of instruments as follows: Type I - Pitot Pressure, straight and L-shaped, 12 and 14 volt nominal, 2 wire circuit. Type II - Pitot and Static Pressured, straight and L-shaped, 12 and 24 volt nominal, 2 wire circuit.
Standard

Estimation of Total Error in Altimetry

2002-05-02
CURRENT
AIR1608A
AIR1608 ESTIMATION OF TOTAL ERROR IN ALTIMETRY proposes a method of estimating overall error of altimetry in order to provide a basis for safe vertical separation of aircraft.
Standard

Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays

2002-05-02
CURRENT
AIR1093A
The purpose of this AIR is to provide recommendations for the minimum dimensions of characters and symbols used in aircraft instrument dials and panel displays as related to the conditions stated in para. 3. Numerous variables influence the legibility of aircraft instrument dial characters. This situation makes it very difficult, if not impossible, to establish an exact act of rules for optimizing all installations. Character size, one of the important considerations, can be optimized where adequate dial space exists. Usually this is not the case and the designer is faced with placing the information in a limited space while continuing to strive for error-free legibility. Appropriate minimum size requirements have been stated herein for guidance in air transport use.
Standard

Minimum Performance Standard General Aviation Flight Recorder

2002-02-13
CURRENT
AS8039A
This standard covers three (3) basic types of flight recorders as defined below: All requirements specified in Sections 3, 4, 5, 6 and 7 of this standard shall be applicable to all recorder types unless otherwise noted.
Standard

Directional Indicating System (Turbine Powered Subsonic Aircraft)

2001-10-01
CURRENT
ARP416A
This recommended practice covers the requirements for gyroscopically stabilized Directional Indicating Systems, which will operate as a 1°/hour latitude corrected, free directional gyro or as a slaved gyro, magnetic compass with 1/2° accuracy.
Standard

Automatic Pilot Installations

2001-10-01
CURRENT
ARP419A
These recommendations cover the mechanical and electrical installation and installation test procedures for automatic pilots of the type normally used in transport type aircraft. The material in this ARP does not supercede any airworthiness requirement in the Civil Air Regulations.
Standard

Stall Warning Instrument (Turbine Powered Subsonic Aircraft)

2001-10-01
CURRENT
AS439A
This standard covers stall warning instruments to provide positive warning to the pilot of an impending stall. Stall, as defined for the purpose of this standard, is the minimum steady flight speed at which the airplane is controllable.
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