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Standard

Spark Plug Rating Calibration

1998-08-01
CURRENT
ARP890A
Procedure for obtaining the corrected heat-rating values (indicated mean effective pressure, IMEP) of spark plugs rated in the SAE 17.6 cubic inch rating engine (SAE AS840).
Standard

SPARK PLUGS, AIRCRAFT ENGINE

1961-12-15
HISTORICAL
AS28A
This specification covers aircraft reciprocating engine shielded and unshielded spark plugs.
Standard

Magnetos, Aircraft, Mountings For

1997-04-01
CURRENT
AS12
This specification covers three types of flanges for magneto mountings as follows: 1. Two-bolt Flange, 2. Three-bolt Flange, and 3. Four-bolt Flange.
Standard

Magnetos, Aircraft, Installation Of

1991-07-01
CURRENT
AS14
This Aerospace Standard establishes the diameter - pitch combinations of ISO metric 60 screw threads recommended for use in the aerospace industry for metric module shaft of bearing retaining screw threads.
Standard

LOW TENSION SPARK IGNITER SPARKING VOLTAGE TEST

1992-11-01
CURRENT
ARP846
These specifications contain general information pertaining to the sparking voltage parameter of shunted surface gap spark igniters; test equipment circuitry; bill of materials for test equipment; test equipment operation.
Standard

LEADS, SHIELDED, DETACHABLE SPARK PLUG

1956-03-15
HISTORICAL
ARP489
This specification establishes the requirements for shielded, detachable high tension spark plug leads for reciprocating engines.
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