Search Results

Standard

Automatic Pilots (Turbine Powered Subsonic Aircraft)

2020-12-22

CURRENT

AS440B

This SAE Aerospace Standard (AS) covers automatic pilots intended for use on aircraft to automatically operate the primary and trim aerodynamic controls to maintain stable flight and/or to provide maneuvering about any of the three axes through servo control. Automatic control functions essential for primary or augmented flight control are excluded.

Standard

Automatic Pilot Installations

2020-04-14

CURRENT

ARP419B

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

Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays

2020-04-01

CURRENT

AIR1093B

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

Aircraft Instrument and Instrument System Standards: Wording Terminology, Phraseology, Environment and Design Standards For

2020-02-20

CURRENT

AIR818E

This Aerospace Standard, (AS), specifies minimum performance standards for _____________ (Instrument or instrument systems) which are primarily intended for use with (vehicles capable of flight), ((fixed wing, rotary wing) aircraft)), (other special modifiers); (and whose purpose is to display _____________ information).

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

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

Airstream Deviation Instrument (ADI)

2008-02-16

CURRENT

ARP794A

This recommended practice covers an instrument which measures and displays angle of deviation of the airstream dependent on mounting location on the aircraft.

Standard

Stall Warning Instrument (Turbine Powered Subsonic Aircraft)

2008-02-16

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.

Standard

Air Data Computers, MPS

2008-02-16

CURRENT

AS417A

This Standard covers air data equipment (hereinafter designated the instrument) which when connected to sources of aircraft electrical power, static pressure, total pressure and outside air temperature (singly or in combination) provides some or all of the following computed air data output signals: Pressure Altitude* Total Temperature* Pressure Altitude (Reporting) Altitude Rate Baro-Corrected Pressure Altitude* Overspeed Warning Vertical Speed* Altitude Hold Computed Airspeed* Airspeed Hold Mach Number* Mach Hold Maximum Allowable Airspeed* qc (impact pressure) Static Air Temperature (*when used as an alternate for total temperature) True Airspeed Others

Standard

TRUE MASS FUEL FLOW INSTRUMENTS

2008-02-16

CURRENT

AS431B

This SAE Aerospace Standard (AS) covers three basic types of true mass flow indicating instruments. Each may consist of an indicator, transmitter and other auxiliary means such as a power supply or amplifier as required.

Standard

Total Temperature Measuring Instruments (Turbine powered Subsonic Aircraft)

2008-02-16

CURRENT

AS793A

This standard covers three basic types of total-temperature-measuring instruments used as a means of determining the total temperature developed by adiabatic heating of the air due to motion of the aircraft through the air. Type I - Flush-type total-temperature sensor Type II - Probe-type total-temperature sensor (electrically heated) Type III - probe-type total-temperature sensor (unheated)

Standard

Automatic Pilot Installations

2008-02-16

HISTORICAL

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

Altimeter, Pressure, Compensated (Turbine Powered Subsonic Aircraft)

2008-02-16

CURRENT

AS415

This Aerospace Standard covers two types of compensated altimeters which indicate, by visual means, the pressure altitude compensated for the static pressure system errors of the aircraft.

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

Fuel and Oil Quantity Instruments (Turbine Powered Subsonic Aircraft)

2008-02-16

CURRENT

AS445

This Aeronautical Standard covers the capacitance sensor type of instrument.

Standard

Single-Degree-of-Freedom Spring-Restrained Rate Gyros

2008-02-16

CURRENT

AS1104

This specification covers that gyroscopic instrument normally defined as a "subminiature rate gyro." The rate gyro, when subjected to an angular rate about its input axis, provides an AC output voltage proportional to the angular rate. The subminiature size category generally includes gyro instruments of one (1) inch diameter or less and three and one-half (3 1/2) inches length or less. This specification defines the requirements for a subminiature spring-restrained, single-degree-of-freedom rate gyro for aircraft, missile, and spacecraft applications.

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.

Standard

Remote Servoed Air Data Instruments for Subsonic Aircraft

2008-02-16

CURRENT

AS791

This standard provides minimum performance criteria for air data instruments intended to provide cockpit indication of: a Indicated airspeed (Vi) b Computer airspeed (Vc) c True airspeed (Vt) d Equivalent airspeed (Ve) e Mach number (M) f Altitude (H) g Vertical speed (Hpr) h Maximum operating limit speed (Vmo) i True angle of attack (αt) j Free air temperature (Tfat) k Total temperature (Tt) These functions shall be derived from a central air data computer (AS 417) and through system wiring applied to the respective indicator.