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GNC® 250
 

 Specifications 

 Navigation Features

Waypoints: 1,000 User Defined

Flight Plans: 20 reversible routes of up to 31 waypoints each

Comments: Storage for comments on up to 250 waypoints

Checklists: 9 user checklists of up to 30 items each

Messages: 9 scheduled user messages

Map Datums: 124 and 1 user defined

 

  Jeppesen® Database 

Coverage: Americas or International

Airports: Identifier, city/state, country, facility name, lat/lon, elevation, fuel service, control approach information

VORs: Identifier, city/state, country, facility name, lat/lon, freq., co-located DME (or TACAN), magnetic variation, weather broadcast indication

NDBs: Identifier, city/state, country, facility name, lat/lon, freq., weather broadcast indication

Intersections: Identifier, country, lat/lon, nearest VOR

Comm Freq.: Approach, arrival, control area, departure, Class B, Class C, TMA, TRSA with sector, altitude and text usage; also ATIS, clearance delivery, tower, ground, unicom, pre-taxi

Runways: Designation, length, surface, lighting, ILS/localizer freq. and ID, pilot-controlled lighting freq.

FSS: Identifier, reference VOR, freq., usage

MSA: Minimum safe altitude along and in proximity to user-defined flight plan

SUA: U.S. Class B & C with sectors, Int. CTA & TMA with sectors, all SUAs, including MOAs, prohibited and restricted with controlling agency

 Performance   

Certification: TSO C37d Class 4 (VHF Transmitter), TSO C38d Class C (VHF Receiver), AC 20-138 (VFR) (GPS Receiver)

Receiver: MultiTrac8; tracks and uses up to 8 satellites to compute and update position

Acquisition Time: 3 minutes (cold)

Update Rate: 1/second, continuous

Accuracy: 

  • Position: 15 meters (49 feet) RMS (subject to accuracy degradation to 100m 2DRMS under SA)
  • Velocity: 0.1 knot RMS steady state

Dynamics:

  • Velocity: 999 knots
  • Acceleration: 3g's

Comm Features: Auto Squelch Control, standard headset output with sidetone and audio leveling, stuck mike transmission timeout, emergency channel select, autotune frequency selection from GPS database

Navigation Features: Search and Rescue Operation (ladder search), Pilot-Defined Course Selection Capability (OBS) and Waypoint Hold, Closest Point of Approach, Departure and Arrival Frequencies

Planning Features: True Airspeed, Density Altitude, Winds Aloft, RAIM Availability, Sunrise/Sunset Calculations, and Trip, Fuel and VNAV Planning

Interfaces: ARINC 429, Plotting (NMEA 0183 v. 2.0), Aviation, PC Interface, Altitude Serializer, Fuel Sensor, Fuel/Air Data Computer

Temperature:

  • Operating: -30°C to +70°C
  • Storage: -55°C to +85°C

Humidity: 95% non-condensing

 Safety  

Emergency Search: 9 nearest airports, VORs, NDBs, intersections, or user waypoints; also displays nearest to current position and 2 nearest FSS and freq.

Alarms: Arrival, Proximity, Timers, SUAs less than 10 min, 2NM and inside SUA

 Physical   

Size:
  • Unit: 6.25 x 2 x 5.8 inches (159 x 51 x 147 mm)
  • Rack: 6.32 x 2 x 5.64 inches (143 x 51 x 161 mm)

Weight:

  • Unit: 39 ounces (1.11 kg)
  • Rack: 11 ounces (0.31 kg)

Display: High-intensity, four-line vacuum fluorescent with automatic brightness control

 Power  

Source: 10-15 VDC, optional remote rechargeable battery, 115-230 VAC with optional battery charger for simulator operation (no TX)

Remote Battery Life (optional): Up to 2 hours with screen timeout enabled

Data Storage: Separate internal battery protects stored data up to 5 years

Power Backup: Optional remote battery automatically powers unit in case of electric power failure

Specifications are subject to change without notice.

Jeppesen is a trademark of Jeppesen, Inc

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