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Part #: 2592920-444

Model: RD-444





Part Number :

  • Radio Deviation Indicator
  • Provides the following displays:
  • Compass data
  • Heading select knob and marker (heading bug)
  • Course select knob and marker
  • Compass annunciator
  • Compass flag
  • Glide slope deviation
  • Glide slope flag
  • VOR to-from pointer
  • VOR/LOC deviation
  • Navigation flag
  • Should be located on the aircraft instrument panel, along the control wheel vertical centerline - within 15° of the viewing the pilot's line of sight
  • Clamp mount installation
  • Contains two heading error CT's and two course error CT's
  • May replace, or be replaced by, the RD-44, except the RD-44 does not have a second course error synchro, second heading error synchro or comparison monitor differential synchro
  • The comparison monitor differential synchro provides the heading input to the CM-200 Comparator Monitor (making the RD-44 not compatible with CM-200)



Dimensions:  (Case) 4.010 ± .010" W x 4.010 ± .010" H x 7.8" max D    Weight: 5 lbs. max 
Power Requirements: (Aircraft) 28 Vdc @ 1.1 Va Max VOR/LOR Deviation Input: 1k ohms ± 5%
Glide Slope Deviation Input:  1k ohms ± 5% VOR/LOC Flag Low Input: 1k ohms ± 5%
VOR/LOC Flag High Input: 45k ohms minimum Glide Slope Flag Low Input: 1k ohms ± 5%
Glide Slope Flag High Input: 45k ohms minimum To-From Pointer Input: 200 ohms ± 10%
Part Number: Description:
2592920-444 HSI


Price Condition Status

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

In relation to NE (New) parts, many OEMs change their prices and availability without any notice to dealers or the industry. Therefore, through the REQUEST or RFQ indication, we ask that customers contact us for the most accurate price and availability.

In relation to SV & OH parts, the used parts aftermarket in the aviation industry is not an infinite supply. It is a dynamic, constantly changing market that is significantly affected by and susceptible to highs and lows in supply and demand. Therefore, although we attempt to, at times, we are unable to predict the exact moment when an item may be available. Once again, through the REQUEST or RFQ indication on our website, we ask that customers contact us for the most current and accurate price and availability.

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 75% of the original exchange price. That is, it cannot cost SEA more than 75% 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.