SAE AS404A
Electric Tachometer: Magnetic Drag (Indicator and Generator).
Standard:
AKA:
- AS404
- Revision: A
- 1954-12-15
- Historical. Access the latest revision: AS404C
- A-4 Aircraft Instruments Committee
To specify minimum requirements for Electric Tachometers primarily for use in reciprocating engine powered civil transport aircraft, the operation of which may subject the instruments to the environmental conditions specified in Section 3.3. This Aeronautical Standard covers magnetic drag tachometers with or without built-in synchroscopes.
History:| Standard | Published | Revision | Status |
|---|---|---|---|
| AS404C | 2001-07-01 | Latest | |
| AS404B | 1959-02-01 | Historical | |
| AS404A | 1954-12-15 | Historical | |
| AS404 | 1948-11-01 | Historical |
- SAE AS 404
- Aerospace
- Avionics
- Aircraft instruments
- Flight control systems
- Flight management systems
- Electrical Systems
- Displays
- Smoke detection
- Instrument panels
- Parts
- Safety
- Fire detection
- Tests and Testing