Part #:

Model: 332D-11A

Collins Aerospace - Vertical Gyro
Part Number :

  • SIMILAR to 332D-11 but transmits additional pitch and roll attitude information for the radar antenna
  • Contains capabilities for fast and normal erection
  • Provides monitor signal to indicate proper erection and speed
  • Transmits pitch and roll attitude for flight director indicator
  • A source of attitude reference information used in integrated flight systems and automatic flight control systems
  • Three-wire 400 Hz synchro outputs conforming to ARINC specification are provided in both pitch and roll axes
  • Equipment features built-in starting cycle, roll cutout, and monitoring circuits
  • Fast erection is automatic during starting
  • Both manual recycling and self-testing can readily be provided by appropriate external wiring
Size: 5 5/8" x 6 3/16" x 7 3/4" Weight: 7.2 lbs
Connector: Bendix Pigmy MS3112E-18-32P Mates with MS3116E-18-32S Power Req.: Starting: 60 VA (550 mA at 115 Vac) Running: 35 VA (300 mA at 115 Vac)
Output Type: Synchro: 204 mV/degree +/-10%, 3-wire, 400 Hz synchro outputs in roll and pitch axes Output Type: Radar: 51 mV ac/degree +/-10%, 2-wire, transformer outputs in pitch and roll axes for radar antenna orientation
Output Loading: Synchro: Up to three servoed Bendix type AY500-5 synchro control transformers or equivalent plus two 10k resistive loads Output Loading: Radar: 10k Maximum for each axis
Null Voltage: 40-millivolt maximum no load Erection Cutout: Internal: 4-9 degress bank External: Provision is made for external cutout, such as external switching rate gyro
Synchro Accuracy: 20-minute maximum angular error Erection Accuracy: 0.5 Degree of vertical within 3 minutes after energizing
Output Accuracy: +/-0.5 Degree Roll Erection Cutout: When bank exceeds 9 degrees
Erection Rate: Normal: 1 - 3 degrees per minute Fast: 5 degrees per minute minimum Free Drift: 0.6 Degree per minute maximum
Operating Temperature: -54C to +70C Storage Temperature: -65C to +70C
Ambient Humidity: 0 - 95% Altitude: -1000 to +40000 feet
Vibration: 5 to 500 Hz at 0.036" double amplitude or 5g    


- Vertical Gyro

NSN: 5826-00-348-3874

Price Condition Delivery

SEA Repair Capabilities: No

- Vertical Gyro
Price Condition Delivery

SEA Repair Capabilities: No

- Vertical Gyro
Price Condition Delivery

SEA Repair Capabilities: No

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact

According to the overhaul manual, it is recommended that the gyromotor bearings be replaced according to the Service Bulletin level of the specified unit.

Without Service Bulletin 13, the recommended interval for overhaul is every 1000 flight hours.

With Service Bulletin 13, the recommended interval for overhaul is every 2000 flight hours.

With Service Bulletin 26, the recommended interval is overhaul is every 3000 flight hours.
Southeast Aerospace exchanges are based on the return of an undamaged, economically repairable core unit with identical part number as the unit shipped to the customer. An "economically repairable" core is defined as one where the cost to repair/overhaul (or Repair Cap) does not exceed 80% of the original SV/OH exchange price billed. Should the Repair Cap exceed 80%, the customer will be billed the additional amount. In the event this amount exceeds the Outright Price for the unit, the customer would only be billed the difference between the Outright Price and SV/OH Exchange Price with the core returned as-is to the customer.

Here is an example of such a transaction:

$1000 Exchange Price charged to customer
$1000 x .8 = $800 Maximum Allowable core repair charge or Repair Cap

$2000 Cost to repair core unit
- $800 Less Core repair cap
$1200 Additional billing amount.

2200.00 Total Cost of transaction

Please Note:
SEA offers exchange on new items as well. However, repair cap as indicated above is still based on SV/OH exchange price.

Negotiating the exchange price of a unit only limits the allowable repair cap for the core unit. Southeast Aerospace's exchange transactions are based on the return of economically repairable core unit. Once the core is received and evaluated, the core repair cost incurred by SEA cannot exceed 80% of the original exchange price. That is, it cannot cost SEA more than 80% of the original OH/SV exchange price collected from the customer. Therefore, when and if an SEA exchange price is discounted, there is a risk that additional charges may be assessed once the core is returned and evaluated.

For more information, please refer to these other Exchange FAQs