RMI-30 622-4938-007

Rockwell Collins - Radio Magnetic Indicator
Part Number :


RMI-30
FEATURES
  • Provides aircraft heading information on a calibrated servo-driven compass card read against a fixed lubber line
  • Heading flag monitors servo error, compass valid, and instrument power
  • Normally used with VIR-30/32 Navigation Receivers or ADF-60 ADF System
  • Models available with 5 or 28 Volt, Blue-White Lighting (see table below)
  • Models available with black or gray color bezel (see table below)
  • Models available for rear mount applications (see table below)
SPECIFICATIONS
FAA TSO: C6c Environmental: RTCA DO-138
Dimensions: 3.375"H x 3.375"W x 7.310"L Weight: 2.6 lbs.
Altitude: 15000 ft. max. Temperature: -15 to +55C (operation)
Pointer 1 Color: Day-Glo yellow (-001 thru -007 units) White (-021 thru -027 units) Pointer 2 Color: Day-Glo green (-001 thru -007 units) White (-021 thru -027 units)
HDG flag Color: Day-Glo rocket red Lubber line Color: Day-Glo arc yellow
Numerals Color: White Background Color: Black
Bearing Pointers Positioning Accuracy: Less than +-2.0 degrees Bearing Pointers Sensitivity: Better than +-0.5 degrees
Bearing Pointers Dead Zone: Less than 1.0 degree Bearing Pointers Response: Greater than 180 degree per second undamped
VOR 1/2 Positioning Accuracy: Within +-2.0 degrees (w/ square wave input) VOR 1/2 Sensitivity: Better than +-0.5 degree
VOR 1/2 Dead Zone: Less than 1.0 degree VOR 1/2 Response: Greater than 180 degrees per second undamped
Heading Display Interface: Signal: 3-wire synchro. References: 2 wire Heading Display Positioning Accuracy: Within 1.0 deg.
Compass Card Sensitivity: Better than +-0.1 deg Compass Card Dead Zone: Less than 0.2 degree
Part NumberRadio Magnetic Indicator Description:
622-4938-001 Black Bezel, 28V lighting
622-4938-002 Black Bezel, 5V lighting
622-4938-003 Gray Bezel, 28V lighting
622-4938-004 Gray Bezel, 5V lighting
622-4938-005 Special Gray Bezel for rear mount applications, 5V lighting
622-4938-006 Special Gray Bezel for rear mount applications, 5V lighting
622-4938-007 Black Bezel, 28V lighting, NAV indication instead of VOR
622-4938-021 Black Bezel, 28V lighting
622-4938-022 Black Bezel, 5V lighting
622-4938-023 Gray Bezel, 28V lighting
622-4938-024 Gray Bezel, 5V lighting
622-4938-025 Special Gray Bezel for rear mount applications, 5V lighting
622-4938-026 Special Gray Bezel for rear mount applications, 5V lighting
622-4938-027 Black Bezel, 28V lighting


PLEASE NOTE:
THE ABOVE LISTED PART NUMBERS REFLECT THE DIFFERENT UNITS ORIGINALLY AVAILABLE BY THE MANUFACTURER AND DO NOT NECESSARILY INDICATE OR REFLECT THE CURRENT AVAILBILITY OF THESE DIFFERENT UNITS BY SOUTHEAST AEROSPACE OR THE AFTERMARKET

 

622-4938-001
- Radio Magnetic Indicator

NSN: 5826-01-296-3914

Price Condition Delivery
$650.00 OH OUTRIGHT IN STOCK

SEA Repair Capabilities: Yes

622-4938-002
- Radio Magnetic Indicator
Price Condition Delivery
$1,000.00 OH OUTRIGHT IN STOCK
$850.00 OH EXCHANGE IN STOCK

SEA Repair Capabilities: Yes

622-4938-003
- Radio Magnetic Indicator
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-004
- Radio Magnetic Indicator
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-006
- Radio Magnetic Indicator
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-007
- Radio Magnetic Indicator

NSN: 5826-01-370-9328

Price Condition Delivery
$650.00 SV OUTRIGHT IN STOCK

SEA Repair Capabilities: Yes

622-4938-021
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-022
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-023
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-024
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-025
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-026
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

622-4938-027
- RMI
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

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

The use of a Radio Magnetic Indicator in an aircraft offers several benefits that improve navigation situational awareness and pilot workload.

A very basic ADF indicator without a moveable compass card simply points to a selected beacon. The pilot must calculate the bearing needed based on the aircraft's current heading. Most if not all ADF indicators without a knob to turn the compass ca rd are very old and obsolete.

Most ADF indicators include a knob to turn the present heading so that the bearing to the beacon can be read against the compass card.
 

 


The RMI provides all of the ADF indicator functions with automatic rotation of the compass card via the aircraft's compass system. Therefore, whenever the aircraft turns then the compass card will turn.

An RMI always automatically points to the bearing to a beacon. This is a more logical form of indication even over VOR type of navigation since there is no OBS, To-From, radials, etc.

 

 

 

 


More advanced RMI indicators offer even more flexibility and features by offering dual needle for ADF and VOR bearing and multiple ADF/VOR navigation.

 

 

 

 

 

 

 

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