AN-5743-2

                                 400267

 

In the A-11, Waltham has taken a historically reliable aircraft clock and updated it for use both civilian and military applications.

It comes  in two versions: a twelve-hour version where the hour hand rotates around the dial once in twelve hours and a twenty-four hour version where the hour hand

rotates around the dial once in twenty-four hours.

The clock contains an unbreakable, anti-magnetic cobalt alloy mainspring and anti-magnetic, temperature compensated hairspring to insure accuracy.

The lever adjusting the rate is accessible without removing the clock from its case. This clock runs independently of the aircraft, and it is not

affected by environmental extremes or system failures.

Waltham can manufacture the A-11 with custom lighting configurations to match instrument panels and special dials to meet specific requirements.

Clock cases can also be painted custom colors to match specific instrument panels.

All Waltham Clocks are produced domestically. Spare or replacement parts are always available. Quotes and inquires are returned within 24 hours.

PARTS NUMBERS

AN-5743-2

22809-S-12

OPERATION

Winding of the clock is accomplished rotation of the knob in a clockwise direction until a stop is reached.

The clock should be wound every seven days.

18 JEWELS, 8-DAY MOVEMENT

SWEEP SECOND HAND

1 7/8” DIAMETER DIAL

Flat Black

LUSTERLESS WHITE HANDS AND NUMBERS

LEVER REGULATION FOR ADJUSTING RATE

Accessible without removing movement from case

UNBREAKABLE MAINSPRING TO INSURE ACCURACY

Anti-magnetic cobalt alloy

ANTI-MAGNETIC HAIRSPRING

COMPENSATION FOR TEMPERATURE, POSITION, AND ISOCHRONISM

DUST AND MOISTURE PROOF CASE

Black anodized aluminium

Available in custom colors

 

Waltham, in cooperation with Douglas Aircraft,

has developed the first ever twelve-minute mechanical clock.

 

We have taken our basic aircraft design and incorporated a tote hand that revolves every

twelve minutes vs. sixty seconds. This allows pilots to better gauge the amount of time elapsed.

The stop, start and flyback of second and minute hands do not disturb the time of day.

The lever for adjusting rate is accessible without removing the clock from its case. The clock contains an anti-magnetic, temperature compensated hairspring to insure accuracy. Not affected by environmental extremes or system failures

 

Lighting: per Douglas Aircraft Company Spec. 7936766

Weight: 12 ounces maximum

Case Finish: Black anodize per MIL-A-8625 Type II, color no. 37038 or Federal Standard 595

 

Jewels: 20-five more than required by military specifications to insure accurate performance

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR#52.208-1. They contain domestic jewels.

Operation and Installation

To wind clock, rotate winding knob in a clockwise direction until a stop is reached

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob       will return to winding position when released.

Wiring

Pin A: 5 Volt AC or DC

Pin B: Common Ground

Lighting

Connector: DTIH-10-6PN

Custom Connectors Available

                     A-13A-1

 

 

 

 

    A-13A-1 P/N 400201

    Weight: 9 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Available in custom color

    Dial and Hand Finish: Fluorescent Luminescent MIL-L-25142

    Spec No: MIL-C-6499E

    NSN: 6645-00-950-8599

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.    Jewels: 20-five more than required by military specifications to ensure accurate performance

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1.

They contain jewels produced by MICROLAP Technologies  Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

 

Operation and Installation

Clocks are furnished with standard 2  inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

 

To set clock, pull winding knob out and rotate as required.

                                 A-13A-2C

                                 A-13A-2E

    A-13A-2 C P/N 400252

    Weight: 9 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Available in custom color

    Dial and Hand Finish: Lusterless White MIL-L-38875

    Spec No: MIL-C-6499C

    NSN: 6645-00-880-5927

 

 

With one-hour elapsed time feature and sweep hand. The start, stop and fly back of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

 Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available.

 

Operation and Installation

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

 Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

 To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

    A-13A-2 E P/N 400202

    Weight: 9 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Available in custom color

    Dial and Hand Finish: Lusterless White MIL-L-38875

    Spec No: MIL-C-6499E

    NSN: 6645-00-150-6526

 

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

 

Operation and Installation

 

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

                                 A13A/L

 

    A13A/L P/N: 400236

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Connector/Power Supply: 67-02E12-60P/5 Volt AC or DC

    Lighting: Red MIL-L-25467

    Spec No: MIL-C-6499 (MOD)

    NSN: 6645-00-353-6659

    Developed for Grumman LAW Drawing 1285CAV117

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

Operation and Installation

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth. Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing. To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

Lighting

    Connector: 67-02E12-60P

    Custom Connectors Available

 Wiring

    Pin 1- Common Ground

    Pin 3- Red Lighting

 

                                 ABU-5/A

 

    ABU-5/A P/N 400270

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Connector/Power Supply: DM5600-3P/5 Volt AC or DC

    Lighting: White MIL-L-27160

    Spec No: MIL-C-26349

 

 

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

 Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

Operation and Installation

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

 Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

 When locating, allow sufficient space for projections shown on drawing.

 To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

 To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

Lighting

     Connector: DM5600-3P

    Custom Connectors Available

 

 Wiring

    Pin 1- Common Ground

    Pin 2- White Lights

 

                                 ABU-9/A

 

    ABU-9/A P/N 400216

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Connector/Power Supply: DM5600-3P/5 Volt AC or DC

    Lighting: Red MIL-L-25467

    Spec No: MIL-C-27298

    NSN: 6645-00-327-4005

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

 

Operation and Installation

Clocks are furnished with standard 2 aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

 When locating, allow sufficient space for projections shown on drawing.

 To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

  To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

Lighting

    Connector: DM5600-3P

    Custom Connectors Available

 

 Wiring

    Pin 1- Common Ground

    Pin 3- Red Lighting

 

                                 ABU-11/A

                                 ABU-11/A NVG

 

    ABU-11/A NVG P/N 400415

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inched flat black

    Connector/Power Supply: DM5600-3P/5 Volt AC or DC

    Lighting: NVG

    Spec No: MIL-C-38207

    NSN: 6645-00-076-3050

 

 

 With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

 Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

 Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

Operation and Installation

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

 o set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

Lighting

    Connector: DM5600-3P

    Custom Connectors Available

 

 Wiring

   Pin 1-Common Ground

   Pin 2-NVG

 

 

    ABU-11/A P/N 400240

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inched flat black

    Connector/Power Supply: DM5600-3P/5 Volt AC or DC

    Lighting: Dual Red and White

    Spec No: MIL-C-38207

    NSN: 6645-00-076-3050

 

 

 

 With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

 Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

Operation and Installation

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

 o set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

Lighting

    Connector: DM5600-3P

    Custom Connectors Available

 

 Wiring

    Pin 1- Common Ground

    Pin 2- White Lights

    Pin 3- Red Lights

 

                                 ABU-24/A

 

    ABU-24/A P/N 400257

    Weight: 10 ounces maximum

    Dial Diameter: 1 7/8 inches flat black

    Connector/Power Supply: DM5600-3P/5 Volt Ac or DC

    Lighting: White MIL-C-25050

    Spec No: MIL-C-27298A (MOD)

    NSN: 6645-21-200-0263

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case. Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

Operation and Installation

 

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

Lighting

    Connector: DM5600-3P

    Custom Connectors Available

 

 Wirin

    Pin 1- CommonGround

    Pin 2- White Lights

 

                                 ABU-43/A

Developed for Boeing/McDonnell Douglas in accordance with LAW MCAIR

Drawing 74J808059-103

 

    ABU-43/A P/N: 400225

    NSN 6645-01-311-5481

    Weight: 10 ounces Maximum

    Lighting: NVG MIL-L-85762

    Connector/Power Supply: DM5600-3P/5 Volt AC or DC

    Specification Number: MIL-C-27298A (MOD)

    Anti-reflective filters can be designed to meet specific requirements

    Approved by the U.S. Department of Defense for night vision weapon systems

 

 

With one-hour elapsed time feature and sweep hand. The start, stop and flyback of second and minute hands does not disturb time of day. The lever for adjusting rate is accessible without removing the clock movement from its case.

 

Clocks contain an unbreakable, anti-magnetic cobalt alloy mainspring and an anti-magnetic temperature compensated hairspring to ensure accuracy. Mechanical clocks are stand-alone, time keeping instruments which are not affected by environmental extremes or system failure.

 

Waltham clocks can be provided with custom lighting configurations to match instrument panels and with special dials to meet specific requirements.

Case: Dust and moisture-proof aluminum. Lusterless black color 37038 or Federal Standard 595.

Jewels: 20-five more than required by military specifications to ensure accurate performance.

All Waltham mechanical aircraft clocks are domestically produced and are certified to conform to FAR # 52.208-1. They contain jewels produced by MICROLAP Technologies Wm. Langer Jewel Bearing Plant.

Spare or replacement parts available

 

Operation and Installation

 

Clocks are furnished with standard 2 inch aircraft instrument case. Instrument panel cutout required as shown on the drawing, together with view of the mounted clock showing interference dimensions in depth.

Two mounting screws and two Tinnerman nuts are available upon request. For mounting with flange behind instrument panel, screws are secured to Tinnerman nuts inserted into mounting holes in clock. For mounting with flange in front of instrument panel, screws are secured to locknuts provided in instrument panel.

When locating, allow sufficient space for projections shown on drawing.

To wind clock, rotate winding knob in a clockwise direction until a stop is reached.

To set clock, pull winding knob out and rotate as required to set time of day hands. Knob will return to winding position when released.

 

Lighting

    Connector: DM5600-3P

    Custom Connectors Available

 

Wiring

    Pin 1- Common Ground

    Pin 3- NVG Green Lighting