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Synchros, General Specification for

2019-06-05
CURRENT
AS20708C
This specification relates to Synchros, 60 and 400 Hz. It is not complete in itself, but shall be used in conjunction with MIL-DTL-81963, in which the latter shall be recognized as forming an inherent part of this specification. This standard requires a Qualified Products List (see 6.4).
Standard

Precision Control Motors – 400 Cycles

2017-11-30
CURRENT
ARP497B
This recommendation establishes objectives for high performance control motors to be used with aeronautical and associated equipment in protective enclosures or completely within the shell of the aircraft so that they are subjected only to the internal climatic conditions of heat, cold, shock, vibration, altitude, and humidity. Control motors larger than size #23 are not covered in this document.
Standard

Speed Variation of D-C Motors

2017-10-26
CURRENT
AIR857A
The scope of this SAE Aerospace Information Report (AIR) is a review of the factors contributing to speed variation of d-c motors, a presentation of typical data showing speed variation as a function of certain variables for representative motors, and a recommendation of a means of improving communications between motor users and manufacturers. The following analysis is limited to variations in voltage, torque, temperature, and altitude of the same magnitude as in MIL-M-8609.
Standard

Synchro, 60 and 400 Hz, Size 23

2017-05-18
CURRENT
AS20708/94C
This specification covers the detail requirements for 115 volt, 60 and 400 Hz, size 23 synchros (see 6.1).
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