2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21
In aviation, time and some other indicators are measured using aviation watches, chronometers, stopwatches, which operate on the principle of mechanical oscillations of a pendulum. The mechanism of such devices is driven by the consumption of a certain supply of mechanical energy contained in the spring. Popular aircraft-mounted options are the AChS-1 watch, which includes a conventional time chronometer, stopwatch, and flight period tracking mechanism.
Application
Modifications under consideration are intended for the following purposes:
- Display the current time (hours/minutes/seconds).
- For separate recording in hours and minutes (modifications AChS-1M, AChS-1MN).
- Count down the flight time of an airplane, helicopter or other aircraft.
- Keep a record of small time intervals in minutes and seconds.
The stopwatch scale on the AChS-1 model is designed for 60 minutes, on the AChS-1M and MN variations - for 30 minutes. The second hand is located in the center, simultaneously acts as a stopwatch and works in this mode only if the stopwatch is on.
The normal daily indicator functions non-stop, and the device,determining the flight time, and the stopwatch have separate control. On the front of the device there are scales (3 pcs.) And pen heads (2 pcs.).
Purpose of the left handle
The left crown, which is equipped with aviation watches, performs several functions:
- Serves for winding.
- Designed to move the hands of the main daily element.
- Used for sea start and deactivation of the flight time mechanism.
Maximum winding of the spring guarantees operation for 72 hours. In order to achieve optimal accuracy, it is advisable to start the device every two days. The temporary flight mechanism is controlled by pressing the handle on the left, at the first action it is activated, a red color is formed in the signal gap.
Pressing the crown again turns off the flight time. The arrows indicate the presence of the aircraft in the air, the scale indicates this in red and white. The next (third) press returns the hands to their original position (to "12"), a white color is displayed in the signal niche.
What is the right head for?
The right handle aviation watch with a stopwatch is adjusted when starting and stopping the daily mechanism, stopwatch, as well as to return the minute and second hands to the initial position.
The stopwatch cycles through a full stage with three clicks. At the first touch, the stopwatch mechanism is activated. The second press stops it, and the third -returns the arrows to their original position.
Features
Aviation watches are equipped with electric heating with a thermostat that maintains the temperature regime within 20 degrees. The element is connected to the on-board network at direct current. The recommended switching temperature is below five degrees. Before the flight, you should check the factory of the watch, set the exact time indicator on them.
To do this, you need to turn the crown to the right clockwise when the second hand passes the “12” phase, stopping the movement. Next, you need to remove the left handle until it stops, rotating it in a circle from right to left, set the exact time. After the current parameters have been set, the left head is returned to its original position. To start the clock, turn the right knob from left to right.
After takeoff clearance is obtained, activate the flight time mechanism, and after landing, turn it off by pressing the left stick.
Technical indicators
Aviation mechanical watches (ACS) have the following characteristics:
- Coating the dial and hands with white paint or reflective paste.
- Duration accuracy error per day – ±20 sec.
- Duration of a full winding movement - 72 hours.
- Recommended frequency of rewinding is every two days.
- Heating circuit voltage (DC) - 27 V.
- Electrical heating resistance - 50 Ohm.
- Built-in backlight power supply - 5.5 V from mains 400Hz.
- The weight of the device is 650-750 grams, depending on the model.
- Dimensional values of AChS-1 – 8591.4 mm.
Description of items
Aircraft on-board clocks consist of a kind of engine (winding springs), devices responsible for the current time, stopwatch, flight period, course, as well as a regulator, control elements and electric heating with a temperature controller, built-in backlight (ACHS-1MN).
The current time device works non-stop from the engine, and the flight time and stopwatch turn on and off autonomously. To view the readings, a dial with scales (3 pcs.) Is designed:
- For indications of the current time - the main (large) scale.
- Sector "Flight time" - for fixing flight time.
- Sector "SEC" - for counting the functions of the stopwatch.
The clock is controlled by two heads (handles).
Wrist modification
The Molniya plant in Chelyabinsk produces a unique project - an aviation wrist watch, which is an exact copy of the ASF device. The dial of the compact model completely copies the design of the original aviation watch, equipped with appropriate scales that make it possible to measure time intervals in hours, minutes and seconds.
The material for the watch case is stainless steel. The new line has two modifications: with a special black PVD coating and withoutcoatings. An individual image, a commemorative inscription, a wish can be applied to the back cover using the engraving method.
Such an original gift will please any person associated with aviation or just a connoisseur of quality things. The wrist version most closely resembles aviation watches, which are mounted on almost all types of domestic aircraft.
Conclusion
Summing up the review of aviation watches, it can be noted that this is a reliable, unpretentious device that provides maximum accuracy of the current time, flight period parameters, and has a stopwatch function. Due to high quality indicators, the device in question and its modifications have been used in aviation for many years.
Flight watches with a stopwatch do not require special care, one winding is enough for three days, and electric heating ensures their normal operation at any outside temperature. On the Internet you can find many ads for the sale / purchase of ASF models, while their price is quite high. Additionally, the quality of the device and their popularity is confirmed by a wrist copy, which is in great demand and exactly repeats the design and design of the on-board variation.
Recommended:
Overview of the mechanical stopwatch SOPpr 2a 3 000
A stopwatch is a special device that can measure time very accurately, down to a fraction of a second. Often they are used for measurements with an accuracy of 100th of a second. In this article we will talk about the features of the mechanical stopwatch SOPpr 2a 3 000
Military watch. Men's watch with army symbols
Military watch is a chic accessory equipped with a variety of additional features and functions. Today they are used not only by soldiers and officers in the army. Every man will be pleased to receive such a watch as a gift. Especially if he has to regularly visit extreme conditions
Watch Quartz - quartz watch
Remember the old Soviet joke about the grandmother who came to the store to buy a wall clock with a cuckoo, and asked for change “there are those little ones under the glass”?
Aviation watch. Mechanical aviation watch AChS-1
AChS-1 mechanical aviation watch combines a century-old history of craftsmanship and simple beauty. Well-known world brands use modern technologies and create more and more new models based on the design of these watches. For many years, famous brands have been equal to aviation watches to get a semblance of perfection in their vision
Famous watch brands. Wrist watch brands
Why does a person need a watch, if today electronics allows you to control time without them? Modern watch brands are primarily designed to create an image, stylish, fashionable, sporty or prestigious. They tell a lot about their owner
