Aircraft clock
ACHS-1MK
Price on request
Aircraft clock
Available on back-order
Description
The AChS-1MK Aircraft Clock is a mechanical onboard timekeeping instrument designed for continuous operation in aircraft and helicopter cockpits. The unit provides accurate display of current time in hours, minutes, and seconds, and allows precise measurement of aircraft flight time using an integrated flight time counter and chronograph mechanism. This functionality is essential for navigation control, flight monitoring, and mission time management during daily and extended flight operations.
The clock features a power reserve of not less than three days after a full winding and a daily accuracy of ±20 seconds. The AChS-1MK is designed for operation in demanding environmental conditions, including temperatures down to −60 °C, and is resistant to vibration loads up to 20 m/s² within a wide frequency range. The unit is equipped with an integrated electric heater with thermostat powered by a 27 V DC onboard supply, ensuring stable operation under low-temperature conditions. The dial and hands are coated for compatibility with red cockpit illumination. Compact dimensions, regulated mass, and rigid mounting design make the AChS-1MK suitable for installation on transport and utility aircraft and helicopters of Soviet and Russian origin operated in severe эксплуатационные environments.
Details
Category: Aircraft instruments
Product name: AChS-1MK Aircraft Clock
Alternative reference: AChS1 MK / AChS 1 MK / AChS1MK / AChS-1-MK / AChS-1MK / A4S-1 MK / A4S1 MK / A4S 1 MK
Type: Mechanical aircraft clock with flight time counter and chronograph
Function: Display of current time and measurement of aircraft flight time
Application: Used on aircraft and helicopters of Soviet and Russian origin
Associated systems: Onboard instrumentation system, cockpit heating and lighting system
Power reserve: Not less than 3 days after full winding
Daily rate accuracy: ±20 seconds per day
Number of jewels: 26
Chronograph range: 30 minutes
Operating temperature range: Down to −60 °C
Winding interval: Once every two days
Shock and vibration resistance: Acceleration up to 20 m/s², frequency range 18–144 Hz
Execution version: Standard and tropical
Overall dimensions: 85 × 91.4 × 91.4 mm
Weight: 655 g
Operating conditions: Rigidly mounted onboard equipment
Construction: Mechanical mechanisms of current time, flight time and chronograph
Heater type: Integrated electric heater with thermostat
Dial and hands coating: Red-light compatible coating (white paint for red illumination)
Heater supply voltage: 27 V ±2.7 V DC
Heater electrical resistance: 50 ±2 Ω
Insulation resistance: Not less than 20 MΩ
Insulation dielectric strength: 500 V for 1 minute
Vibration resistance of heater: Acceleration up to 20 m/s², frequency range 10–144 Hz
Condition: New / Overhauled / Serviceable
Documentation: Test report / Form 1 / Certificate on request
Warranty: 6 months standard (extended available)
Country of origin: Depending on production batch
Packaging: Individual export packing
Logistics: Worldwide shipping, export documentation, inspection, and professional packing available
Payment & delivery
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.
- Description
- Details
- Payment & delivery
The AChS-1MK Aircraft Clock is a mechanical onboard timekeeping instrument designed for continuous operation in aircraft and helicopter cockpits. The unit provides accurate display of current time in hours, minutes, and seconds, and allows precise measurement of aircraft flight time using an integrated flight time counter and chronograph mechanism. This functionality is essential for navigation control, flight monitoring, and mission time management during daily and extended flight operations.
The clock features a power reserve of not less than three days after a full winding and a daily accuracy of ±20 seconds. The AChS-1MK is designed for operation in demanding environmental conditions, including temperatures down to −60 °C, and is resistant to vibration loads up to 20 m/s² within a wide frequency range. The unit is equipped with an integrated electric heater with thermostat powered by a 27 V DC onboard supply, ensuring stable operation under low-temperature conditions. The dial and hands are coated for compatibility with red cockpit illumination. Compact dimensions, regulated mass, and rigid mounting design make the AChS-1MK suitable for installation on transport and utility aircraft and helicopters of Soviet and Russian origin operated in severe эксплуатационные environments.
Category: Aircraft instruments
Product name: AChS-1MK Aircraft Clock
Alternative reference: AChS1 MK / AChS 1 MK / AChS1MK / AChS-1-MK / AChS-1MK / A4S-1 MK / A4S1 MK / A4S 1 MK
Type: Mechanical aircraft clock with flight time counter and chronograph
Function: Display of current time and measurement of aircraft flight time
Application: Used on aircraft and helicopters of Soviet and Russian origin
Associated systems: Onboard instrumentation system, cockpit heating and lighting system
Power reserve: Not less than 3 days after full winding
Daily rate accuracy: ±20 seconds per day
Number of jewels: 26
Chronograph range: 30 minutes
Operating temperature range: Down to −60 °C
Winding interval: Once every two days
Shock and vibration resistance: Acceleration up to 20 m/s², frequency range 18–144 Hz
Execution version: Standard and tropical
Overall dimensions: 85 × 91.4 × 91.4 mm
Weight: 655 g
Operating conditions: Rigidly mounted onboard equipment
Construction: Mechanical mechanisms of current time, flight time and chronograph
Heater type: Integrated electric heater with thermostat
Dial and hands coating: Red-light compatible coating (white paint for red illumination)
Heater supply voltage: 27 V ±2.7 V DC
Heater electrical resistance: 50 ±2 Ω
Insulation resistance: Not less than 20 MΩ
Insulation dielectric strength: 500 V for 1 minute
Vibration resistance of heater: Acceleration up to 20 m/s², frequency range 10–144 Hz
Condition: New / Overhauled / Serviceable
Documentation: Test report / Form 1 / Certificate on request
Warranty: 6 months standard (extended available)
Country of origin: Depending on production batch
Packaging: Individual export packing
Logistics: Worldwide shipping, export documentation, inspection, and professional packing available
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.