Tag Archives: Aviation

A Brief History of Pilots and Astronauts Wrist Watches

The pilot wrist watch is an instrument which has been present in the cockpit since the very beginning of aviation.

The evolution of pilot watches shows aviation has always relied on cutting edge technology, setting trends for all other fields, including watchmaking.

The first ever timepiece for a pilot dates back to 1904.

It was created by Cartier and named Santos, after one of the first European aviation pioneers. It was nowhere near the aviation watches that came later, because in front of being reliable and easy to read-out (these criteria for pilot watches came later), it was stylish.

Image Credit: wristwatchreview.com

The story is, that Santos, after he made his first flight received a German Archdeacon Aviation Prize for the stunt. The legend says that in the course of celebration Santos complained to his friend, Louis Cartier, that it was hard for him to check what time it was using his pocket watch. This was how the first pilot watch was created. It also was one of the very first wrist watches ever created.

Cartier established the role of an aeronautical watch, as it served several functions. Watch could be used to calculate the fuel consumption, air speed, lift capacity, navigation and finally, it was useful for time keeping.

A second major step was made when an aviation watch was established marketing-wise, as a product. It was when Louis Bleriot made his first flight across the English Channel, or La Manche Channel. The name of the channel depends on your place of residence. The Channel crossing was yet again motivated with money. A thousand pounds prize was offered to anybody who did it first.

It was also the beginning for the media to doubt the technological advance, as the French newspaper Le Matin claimed, the contest was impossible to win, as  there was no chance whatsoever of crossing the Channel by a plane. As we all know, Louis Bleriot did it, with a Zenith on his wrist.

After crossing the Channel he said: I am very satisfied with the Zenith watch, which I usually use, and I cannot recommend it too highly to people who are looking for precision.

After all Bleriot was a hero. And this was one of the first examples of using brand endorsement in marketing. Again, on the cutting edge of aviation.

The greatest steps in development of the aviation wrist watches were yet to happen.

The first use of an airplane in war, as a weapon was a major step. The watches were also to evolve during that period, as they started to get used as navigation instruments. The main purpose of a watch here, was to make a coordinated attack possible at a precise moment. British pilots flew with the pocket watches Mark IV.A (1914) and Mark V (1916).

These watches were produced by Doxa and had a sign of being destined for aviation (Letter ‘A’ with an arrow) use on the back of the case. Needless to say – they were one of the first standard issues.

Image Credit: zenith.watchprosite.com

A peculiar feature of these watches was their long crown housing. The purpose of that was to make them fittable into the instrument panel, and in that way during the flight they were just another gauge there, hence the name – cockpit watch.

It was during the WWI when the first luminous hands appeared on a watch, as night flying required the watch to be still readable in the poor light conditions.

Some of the cockpit watches did have anonymous producers from all around Britain, nevertheless some of them were not anonymous, as the four known manufacturers of Mark V watches were Zenith, Omega, Doxa and Electa.

Longines was another manufacturer that is associated with the aviation timepieces even today. Longiness in the period between the World Wars was an official Olympics timekeeper, as Omega is today. It was also between the WWI a II when Charles Lindbergh made his non-stop solo Atlantic crossing.

Needless to say, he used a Longines watch.

During the Lindbergh’s Atlantic flight Longines was a navigation instrument, as time was the main way of telling where he was. Over the Ocean there are no landmarks, just water all around the horizon. The watches were not so accurate as they are now. Longines used an idea of a rotating inner dial that could be set in order to get rid of the lack of accuracy.

The pilot listened to a minute beeps over the radio and aligned the dial using the signals as a reference. Here is how a rotating bezel was invented. Lindbergh’s watch also allowed the pilot to determine an hour angle with a decent precision. This was a large navigational help.

Image Credit: timelyclassics.com

In 1939 WW2 started. Again the technology was on a quick development curve, as new inventions in the field of aviation were created. When Adolf Hitler reestablished the Luftwaffe back in 1935 the German industry started to prepare for a conflict. So did the watch industry as well.

RLM (Reichs-Luftfahrtministerium, or Reich’s Ministry of Air Transport) was seeking for a standard issue watch for the bomber crews. The design was similar to the Lindbergh’s watch with the hour angle indication, but the B-Uhr was ultimately looking different. And it is so iconic that it is a model for any aviation watch today.

Beobachtungs-uhren (Observation watches) were a standard issue, but they were owned by Luftwaffe, not the pilots. They had to return them after the flight. The watch during the flight was synchronized (manualy) with a radio beep from the base. It was a common method these days, and this is an early form of contemporary Radio Controlled watches.

Five companies manufactured the B-Uhr: A. Lange & Söhne, Wempe, Lacher & Company/Durowe (Laco), and Walter Storz (Stowa). Wempe and Stowa used Swiss movements.

Image Credit: eibnek110.blogspot.com

As the Jet Age arrived, with the rising speeds of the aircraft the watches had to be more and more accurate.

The Cold War watches were much larger in size. When it comes to that period aviation timepieces, they were modelled after British made Smith W10. Whole array of clones emerged, manufactured by companies such as Hamilton, CWC and MWC.

The CWC watch basically established the model for a contemporary aviation watch. Nevertheless there are still some features that are more common nowadays.

Image Credit: heirloom2.com

Another feature that was first introduced in military watches were the tritum-lit hands. Tritum, being a radioactive isotope is luminous in the darkness. Tritum tubes on hands of the watch provide 20 years of illumination.

One of them is a GMT hand. GMT hand, usually set according to the Greenwich timezone allowed the pilot to calculate the time in different timezones.

One of the most famous watches that featured the GMT hand was the Rolex GMT Master, including a two-toned blue-red bezel, which is called by watch specialists a pepsi bezel. The GMT hand on GMT master goes around the dial once every 24 hours, and was set for the London timezone. The bezel has 24 hours on the scale. If 24 was aligned with 12 on the main dial, then the watch indicated the Greenwich time. But in order to check what time it was in different timezones the pilot only had to rotate the bezel as a point of reference.

Image Credit: Rolex

Rolex GMT Master was a standard issue watch for Pan Am pilots for a long time.

During the Cold War, besides aviation, space was a major research field. This field also required new watches, as lack of gravity was a factor that certainly had an influence on the accuracy of a timepiece.

NASA used Bulova electronic clock in their first space missions. Nonetheless the astronauts, as they were pilots at the same time, were stuck to wearing their own wristwatches. In this respect Yuri Gagarin worn a Sturmanskie watch, while Scott Carpenter used a Breitling Navitimer.

But it was the Omega Speedmaster that was an ultimate astronaut watch. NASA chose this very watch to go to the Moon after a long testing phase: the  Speedmaster was the only watch to fulfil all the agency’s requirements.

On one of the Apollo missions though, astronauts reported that due to the low, near vaccum pressure on the Moon,  one of the watch crystals popped out.

Image Credit: NASA

The 1970s were a boom time for electronic watches, and this kind of watch was mostly used on Skylab or Mir missions.

“Astronauts had the option of wearing two watches in space, and lots of digital watches began riding up in the early 1970s,” said Jim Lovell, an American astronaut. The introduction of quartz movements was a milestone which set the new standards as to the watch accuracy.

Nevertheless in July 1980 U.S. Navy requested a mechanical, manualy wound watch to be its standard timepiece at the time. It might seem odd, but even today most of the pilot watches feature an analog dial instead of digital display.

Contemporary pilot watches feature functionalities that are specifically suited for aviation.  Here we will describe just two watches that are used quite extensively and will enlist the features that make them good aviation watches. The are hundred more types around that have similar or better features and each pilot makes his choice based on his/her style and needs.

First one is Breitling Emergency.

This watch has a feature that might become lifesaving for a downed pilot. The watch contains two mechanisms. The first one has a standard quartz watch that features a digital chronograph and second timezone display along with an analogue dial. The second one is a distress beacon with an antenna, that can be used by a downed pilot to call for help.

Image Credit: Breitling

According to the Breitling website, the watch transmits a first digital signal on the 406 MHz frequency intended for satellites and lasting 0.44 seconds every 50 seconds; as well as a second analog signal on the 121.5 MHz homing and rescue frequency, lasting 0.75 seconds every 2.25 seconds.

Breitling Emergency can be often spotted on the wrists of the Western pilots. As the Breitling company claims, if the transmitter is used in a real emergency the watch will be replaced for free.

The second watch – Citizen Promaster Skyhawk AT JY0080-62E – is used by Polish Air Force F-16 pilots. It is a standard issue watch, which has several aviation related features.

It is radio controlled, so there is no need of setting the time manually and it can indicate time for all the timezones.

Complications (this is what a function of a watch is called) include a chronograph, a timer, two alarms, GMT time and a perpetual calendar. The Eco-Drive solar charging rids the watch of the battery maitenance.

The final feature of the Skyhawk that is so peculiar for aviation watches is the so called slide-rule bezel. This bezel allows the watch user to perform many kinds of calculations, including aviation related ones, such as fuel consumption, unit conversion, square root. Skillfuly used it is a great aid in navigation, as many of the calculations are still done in your memory, e.g. on intercept missions.

Here below is the Skyhawk on the wrist of the Polish Viper driver Lt. Michał ‘Poidog’ Kiczynski, flying the F-16 in the 32 AB in Łask.

Image Credit: Jerzy Siminski

So, if Santa’s brought you one of the above aviation wrist watches for Christmas, with this short and incomplete story about the most famous models, you know a bit more about its history now

Jacek Siminski for TheAviationist

Top Image credit: Omega


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Russian MiG-31 Foxhound jets grounded after one crashes near Vladivostok

On Dec. 14, a Russian Air Force MiG-31 Foxhound, possibly involved in a post-modernization test flight.crashed near Vladivostok on Dec. 14.

According to the Russian MoD, one of the engines failed but, until the exact reason of the failure will be found, all the 80 MiG-31 Foxhounds currently serving in the Russian Air Force were grounded.

Fortunately, both pilots survived and even managed to direct the plane towards an uninhabited area before ejecting.

Back in April a Foxhound from Kazakhstan also crashed – that time one of the crew members died and the other was wounded. The aircraft in Kazakhstan had undergone a general overhaul 4 months earlier.

Since the Foxhound is one of the cornerstones of the Russian Air Defense system the issue is quite serious.

Mig-31 are currently being modernized in a way to provide operational capability at least until 2028. As we reported months ago,  modernizing all of the Russian MiG-31s to BM standard, which includes new radar with a range of 320 km, new avionics and fire control system, would cost over 50 billion rubles.

Image Credit: Wiki

Jacek Siminski for TheAviationist


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U.S. drones to be nuclear powered?

It has emerged that Sandia National Laboratories, the U.S. government’s principle nuclear research and development agency, and defense contractor Northrop Grumman are working on powering the next generation of drones with nuclear power.

With nuclear powered drones, endurance could stop being measured in hours and would be measured in months with excess power used to power better communications and surveillance equipment.

Sandia and Northrop started the project to try and resolve three problems associated with drones with what they call “ultra-persistence technologies”:  insufficient “hang time” over a potential target, lack of power for running sophisticated surveillance and weapons systems, and a lack of communications capacity.

The Sandia-Northrop project team looked at power supplies for large to medium sized UAVs before finally settling on nuclear power: not surprising, since Northrop Grumman patented a Helium Powered nuclear reactor as long ago as 1986 and its widely known designs for nuclear powered aircraft date back as far as the ’50s.

The project team found that nuclear power provided far more time on target and intel per mission than any other power source by quite a margin. It was also the most cost effective power source in that it eliminated the need for expensive support infrastructure near hostile territory.

And it would enable drones to carry more weapons or reconnaissance sensors.

Sandia went out of its way to say that the project is now complete and that no equipment was built or tested and this project was nothing more than a feasibility study, perhaps showing how sensitive this technology is.

There are worries that public opinion would not accept the idea of such a potentially dangerous technology, hence Sandia’s rather over the top statement.

Fears of this technology are understandable after the amount of drones that have been lost, both during combat operations and training. The risk is turning the drone into a sort of dirty bomb or the sensitive technology falling into the wrong hands of terrorists or enemy forces.

Therefore there will be no nuclear powered drones. For the moment….

Richard Clements for TheAviationist.com

Image credit: Reuters

F-16 reaches 4,500 milestone. With a cool desert camo Block 52 model for Morocco.

With a ceremony for employees, customers, former executives and elected officials, including U.S Rep. Kay Granger and Fort Worth Mayor Betsy Price, Lockheed Martin celebrated the 4,500th delivery of the F-16 at its Fort Worth production facility, in Texas, on Apr. 3, 2012.

The 4,500th example is a F-16 painted in desert camo and is a Block 52 model destined for Morocco.

The first production orders for the F-16 date back to 1975. Since then the Fighting Falcon (nicknamed “Viper” in the fighter pilots community) has been produced in partnership with 5 countries and sold to a grand total of 26 countries.

The Fort Worth company has a further 70 F-16s on order book, planes destined to Morocco, Turkey, Egypt, Oman and Iraq, which should keep the production line open until at least 2016.

Lockheed Martin, that has recently announced a new variant, the F-16V, including a new glass cockpit, a new mission computer and data-link architecture, as well as a brand new active electronically scanned array (AESA) radar, is hoping to surpass the sales figures for the F-4 Phantom which stood at 5,195 many of which were replaced by the F-16.

Image credit: Lockheed Martin

One of the highlights of the ceremony was a video of an interview with retired test pilot Phil Oestricher, who also attended the ceremony, which included footage of the January 1974 accidental first flight, when Oestericher took the plane airborne during a high speed taxi test after encountering severe control problems. The video below (although not being the one showed at the ceremony) shows that first flight test “accident”.

Written with Richard Clements

Sun n' Fun 2012 air show

Sun ‘n Fun is a “Fly-in” and airshow held each annually at Lakeland Linder Regional Airport in Lakeland, Florida, usually in April.

Participants include pilots flying their own homebuilt, vintage, restored ex-military aircraft, as well as some current display team and soloist. Among the others (including the Commemorative Air Force’s B-29 “Fifi”, world’s last flying Superfortress; the Black Diamond team and several military and civil aircraft in static display), this year’s edition featured the USAF Thunderbirds, the U.S. Navy F-18 East Tactical Demo of the VFA-106 “Gladiators” and the USMC AV-8B Harrier Demo  of the VMA-542.

The accompanying selection of photographs was taken by Al Clark during the practice airshow, Friday, Mar. 30, and during the official airshow on Saturday, Mar. 31. The photos were taken from off the airshow grounds in order to facilitate better photographic opportunities.

If you want to know which other planes were at Lakeland during the last weekend, the following video provides an overview on some of the hundred other aircraft attenting Sun n’ Fun 2012.