Aircraft flight data recorder SENTRY25

CVRFDRretrofit

SENTRY25 extends the SENTRY architecture to 25-hour cockpit voice recording in CVR and CVFDR configurations, using the same enclosure, the same interfaces and the same ED-112A certification basis. It is built so that meeting the 25-hour requirement is a recorder swap rather than an installation program.

FPGA architecture, SWaP optimized

• FPGA-based architecture with SWaP optimization, tailored for modern airframes
• Reduced footprint and low mass support direct replacement of legacy recorders without introducing new aircraft constraints
• Lower steady-state power draw preserves electrical margin for mission and cabin loads
• Contains no software, so recording is licence-free and no proprietary software is needed to retrieve the data
• Optional safety-critical soft-core processor available for third-party software

Upgrade, not re-installation

• Service bulletin upgrade path for operators already flying SENTRY 2-hour CVR or CVFDR units
• No wiring changes, no mounting changes, no panel modification
• Adapter trays where the bay was built around a legacy envelope: 70-0182-00 ARINC 757, 70-0183-00 ARINC 757A, 70-0184-00 ARINC 747
• Same dimensions, weight, titanium enclosure, interfaces and optional RIPS as SENTRY, so aircraft already carrying a SENTRY keep their installation approval basis

Recording duration

• 25 hours of cockpit voice

Product numbers

• FDS84-2401 SENTRY25 CVR
• FDS84-2501 SENTRY25 CVR with RIPS
• FDS84-3401 SENTRY25 CVFDR
• FDS84-3501 SENTRY25 CVFDR with RIPS

Specifications

• 3.3 in H x 4.9 in D x 6.0 in W (85 x 124 x 152 mm), base recorder
• 4.5 lb (2.04 kg), titanium enclosure
• 28 V DC, 4.5 W nominal
• Crash survivable to EUROCAE ED-112A
• Patent-pending memory protection system

Interfaces

• Ethernet 10/100 Base-T
• ARINC-717, 64 to 1,024 WPS
• ARINC-429, minimum two inputs
• RS-422/485
• Analog and discrete sensor inputs
• Two rotor speed inputs
• Four audio inputs, high or low fidelity

Certification

• Maintains the SENTRY ED-112A certification basis and memory protection approach
• TSO certification, including the ED-112A software, scheduled for completion October 2026

Availability

• Now accepting orders
• Certification scheduled for completion October 2026, shipments beginning January 2027
• Part numbers defined, so fleet planning and budgeting can proceed now

Installation note
Beacon position and the optional RIPS module change the installed envelope. Regional beacon requirements apply, including Canada's mandate for non-lithium Underwater Locator Beacons

Retrofit-Ready

• 25-hour cockpit voice recording is a global standard, not a regional one
• The United States, Canada and Mexico require it on existing aircraft, which makes it a retrofit requirement today
• EASA, Singapore and other authorities require it on newly produced aircraft, so it is already the specification new-build programs are designed around
• Operators running mixed international fleets face both, and the answer is the same recorder either way
• Most retrofits happen during scheduled maintenance, which makes recorder envelope and wiring impact the deciding factors

Check your fleet
Compliance checker at flightdata.aero/25-hr-cvr-mandates returns your position by aircraft category

Tell us how many SENTRY units you have in service and we will map the service bulletin upgrade across your fleet. customersupport@flightdata.aero