#Piaget watch serial number lookup how to#
#Piaget watch serial number lookup plus#
#Piaget watch serial number lookup professional#

Flight tests revealed no significant problems with the prototypes and production began in September 1958 when the first of 182 Model 204s rolled off the assembly line.

#Piaget watch serial number lookup plus#

Tests on these helicopters (Bell Model 204) were successful and Bell and the Army signed a contract to build 200 production medevac versions plus 100 outfitted as instrument trainers to teach pilots to fly at night and in bad weather. It performed so well that Bell earned a contract to produce three more prototypes in February 1955. The Army designated this prototype the XH-40 and the first one flew on October 22, 1956. They joined with Lycoming to develop the XT-53 to Bell Helicopter specifications, and this new engine eventually powered the prototype Huey. Lycoming had not designed this engine for a specific application but Bell engineers saw great potential in this power plant. At about the same time, the Lycoming Company was developing the XT-53 engine with Army backing. Compared to the reciprocating piston engine, the turbine was lighter, smoother, easier to maintain, and much more reliable.Testing the H-13D gave Bell the confidence to incorporate a turbine engine in the Army's new transport helicopter design. The turbine engine represented a revolutionary step in the development of helicopters, and the Army saw it as a critical component in the new medevac helicopter design. Bell called this modified H-13D test aircraft the Bell Model 201 but the Army gave it the designation XH-13F. Bell was already flying an H-13D equipped with a French-designed, American-made, Continental XT-51 gas turbine engine. The Army held the company in high regard, based on the excellent service rendered by the piston engine-powered Bell 47 during the Korean War. The helicopter could climb to a service ceiling of 1,824 m (6,000 ft).Bell Helicopter Corporation enjoyed several advantages in competing for this contract.

It could carry a payload of 360 kg (800 lb) a distance of at least 365 km (227 miles) and cruise at 184 kph (114 mph). The Army specifications described an aircraft that weighed 3,600 kg (8,000 lb), fully loaded. Army launched a design competition for a new medical evacuation (medevac) helicopter. The concept for this aircraft sprang from the cold, muddy battlefields of the Korean War, where the original MASH (Mobile Army Surgical Hospital) helicopter, the Bell 47, recovered thousands of wounded soldiers and delivered them straight to critical care units. They usually heard the unmistakable whop-whop-whop of the main rotor blade long before they saw a Huey. People knew it not just on sight but by sound, too. For a time, the Huey was one of the most recognizable aircraft in history.

Army as a derivative of the original designation HU-1A - Helicopter, Utility, Model 1A. military operated them and they ranged to every corner of South Vietnam and into Cambodia and Laos. What the jeep was to Americans during World War II, so was the Huey to those who fought in Vietnam. Keep Calm And Continue Collecting: Advice For An Up And Down Watch Market

#Piaget watch serial number lookup how to#

You may also enjoy:Д¦ Ways To Spot A Fake Watch, Even If You DonвЂ™t Know How To Spot A Fake WatchДecoding Omega References: 14 Magic Digits And Codification Tables Revealed * This article was first published on Octoat How To Spot A Fake Omega Wristwatch. Paul Altieri is the founder and CEO of the popular pre-owned watch site BobвЂ™s Watches.

You might also enjoy 6 Ways To Spot A Fake Watch, Even If You DonвЂ™t Know How To Spot A Fake Watch.

And, as always, you must trust the seller.

#Piaget watch serial number lookup professional#

While this checklist is a great way to help you spot many fake Omega watches, there will still be some counterfeits that are such faithful reproductions that you should have them examined by a professional before purchasing.ДЄnytime you purchase a watch, it is important to do your research. The movement of Omega Constellation Reference 2652SC from 1952: note the copper-colored plating (photo courtesy Robert-Jan Broer/Fratello)