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A-4 Aircraft Instruments Committee Reaction and response times Metals Fuel systems

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Standard

CARBON MONOXIDE DETECTOR INSTRUMENTS
1991-05-01
HISTORICAL
AS412A
This Aeronautical Standard covers the basic type of carbon monoxide detector instrument used to determine toxic concentrations of carbon monoxide by the measurement of heat changes through catalytic oxidation.
Standard

CARBON MONOXIDE DETECTORS, (SIGNAL ASSEMBLY)
1948-11-01
HISTORICAL
AS412
This specification covers the basic type of instrument for detection of toxic concentrations of carbon monoxide whose operation is based on measurement of heat changes through catalytic oxidation.
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

Compass; Magnetic, Pilot’s Standby
1999-04-01
HISTORICAL
AS5604
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

DIRECTIONAL INDICATING SYSTEM (TURBINE POWERED SUBSONIC AIRCRAFT)
1991-05-01
HISTORICAL
ARP416
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

Directional Indicating System (Turbine Powered Subsonic Aircraft)
2008-02-16
HISTORICAL
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

Exhaust Gas Temperature Instruments
2008-02-16
CURRENT
AS428
The exhaust gas temperature instruments covered by this standard are of the electrical servo null balance type, actuated by a varying emf output of one or more parallel connected Chromel-Alumel thermocouples.
Standard

FIRE AND HEAT DETECTORS
1947-12-01
HISTORICAL
AS401
This specification covers the following basic types of instruments, or combinations thereof, intended for use in protecting aircraft power plant installations, auxiliary power plants, combustion heaters and other installation where fuel, oil or similar fires may occur.
Standard

FIRE AND HEAT DETECTORS
1949-10-01
HISTORICAL
AS401A
This specification covers the following basic types of instruments, or combinations thereof, intended for use in protecting aircraft power plant installations, auxiliary power plants, combustion heaters and other installation where fuel, oil or similar fires may occur.
Standard

FUEL AND OIL QUANTITY INSTRUMENTS
1956-12-15
HISTORICAL
AS405A
This Aeronautical Standard covers two basic types of instruments as follows: Type I - Float Instruments Type II - Capacitance Instruments
Standard

MANIFOLD PRESSURE INDICATING INSTRUMENTS
1993-05-01
HISTORICAL
AS411A
This Aerospace Standard covers two basic types of manifold pressure instruments as follows: Type I - Direct Indicating Type II - Remote Indicating
Standard

MINIMUM PERFORMANCE STANDARD FOR FUEL AND OIL QUANTITY INDICATING SYSTEM COMPONENTS
2008-02-16
CURRENT
AS8029
This AS defines components in "Capacitance Sensor" and "Non-Capacitance Sensor" type Fuel and Oil Quantity Indicating Systems. "Non-Capacitance" systems may employ any measurement technique current in the art including, but not restricted to, float, ultra-sonic and fiber optic devices. The definition of the individual components contained herein is related to the specified Total Installed System accuracy of the entire Fuel or Oil Quantity Indicating System which is a part of the airframe manufacturer's type certification approval data. This data shall be available from the subject airframe manufacturer as published in the operating manual for the aircraft type, model number and configuration. The Fuel or Oil Quantity Indicating System may incorporate optimum compensation based upon measurement of dielectric constant, temperature or density to correct for variations in fuel or oil characteristics due to temperature grade variations or additives.
Standard

Manifold Pressure Indicating Instruments
2008-02-16
CURRENT
AS411B
This Aerospace Standard covers two basic types of manifold pressure instruments as follows: Type I - Direct Indicating Type II - Remote Indicating
Standard

Overspeed Warning Instrument (Turbine Powered Subsonic Aircraft)
2008-02-16
CURRENT
ARP435
This ARP covers an electro-mechanical pneumatic device which is calibrated to provide control contacts that can be made to operate a warning device whenever the indicated airspeed (IAS) reaches a maximum value as defined by the operating limit speed curve for the specific model aircraft.
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