331A 3G
- Course Indicator typically used in PN-101 Pictorial Navigation System
- Provides controls for course and heading selection
- Contains outputs for autopilot or flight director, VOR Receiver, and additional compass loads
- All models contain bootstrap synchro as additional source of slaved gyro heading information (except -000 model)
- May be front or rear mounted
- Models available with or without internal lighting (see table below)
- Internally lighted models available with 5 or 28 Volt, white, blue-white, or red lighting (see table below)
- Models available w/ EZ/ORZ choke to enable usage w/ 30 or 400Hz OBS resolvers (see table below)
- Model available with gray face color (all other models black)
- Similar to 331A-3F indicator but 331A-3G DOES contain course datum, heading, or bootstrap synchros for autopilot tie-in and additional source of slaved gyro heading information
| DIMENSIONS |
3.175"W x 3.175"H x 6.5"L (-005 versions 6.730"L) |
| WEIGHT |
3.4 lbs |
| ALTITUDE |
from -1000 to 40,000 feet |
| MAGNETIC EFFECT |
5 degrees max deflection of 1-1/2 inch bar magnetic at a distance of 12 miles |
| POWER SOURCE |
26V, 400Hz (also requires 5,28V for lighting depending on unit) |
| WARMUP TIME |
None required |
| PART NUMBER | DESCRIPTION |
| 522-2638-000 |
No internal lighting, black face, NO course datum synchro |
|
522-2638-001 |
No internal lighting, black face, with heading, course datum, and bootstrap synchros |
|
522-2638-002 |
No internal lighting, black face, with heading, course datum, and bootstrap synchros |
|
522-2638-003 |
No internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-005 |
No internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-006 |
28V blue-white internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-007 |
5V white internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-008 |
5V blue-white internal lighting, gray face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-009 |
5V blue-white internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |
|
522-2638-010 |
28V red internal lighting, black face, with heading, course datum, and bootstrap synchros, with EZ/ORZ choke |