Test de la NASA al Speedy 1964.

[pooh]

Al tanto.
NASA test of 1964:

High temperature: 48 hours at 71º C (160F) followed by 30 minutes at 93º C (200F). Pressure of 0,35atm and relative humidity not over 15%.

Low temperature: Four hours at -18º C (0 F).

Temperature-pressure: 1.47x10-5 psia and temperature raised to 71º C (160F). Temperature then lowered to -18º C (0F) in 45 minutes and again raised to 71º C (160F) in 45 minutes. This cycle was repeated fifteen times.

Relative humidity: 240 hours in relatuve humidity of at least 95% and at temperatures varying between 20º C (68F) and 71º C (160F). Steam had a pH value of between 6,5 and 7,5.

Oxygen atmosphere: Exposure to 100% oxygen atmosphere at a pressure of 5.5 psia and a temperature of 71º C for 48 hours.
Vibration: Three cycles of 30 minutes (lateral, horizontal and vertical), the frequency varying from 5 to 2000cps and back to 5cps in 15 minutes. Average acceleration per impulse 8,8g.

Shock: Six 11 millisecond shocks of 40g each in six different directions.

Acceleration: Linear acceleration from 1g to 7,25g within 333 seconds.
High pressure: Exposure to 1,6atm for one hour.

Decompression: 90 minutes in a vaccum of 0 10-6 atm and a temperature of 71º C and 30 minutes in the same vaccum but at a temperature of 93ºC.

Acoustic noise: 130dB over a frequency range from 40 to 10000Hz for 30 minutes

Results of the tests :

In 1965, NASA chose the Omega Speedmaster Professional as the official chronograph for the space program.

Por si no es suficiente les puedo dejara mi suegra. .

 

[Jesús]

Environmental tests and test results for the chronographs are outlined in the attachment to this memorandum. The following major discrepancies were found during environmental testing:

a) Rolex - It stopped running on two occasions during the Relative Humidity Test and subsequently failed during High Temperature Test No. 1 when the sweep second hand warped and was binding against the other hands on the dial. No further tests were run with the Rolex chronographs.

b) Longines Wittnauer - The crystal warped and disengaged during the High Temperature Test. The same discrepancy occurred on a second Longines Wittnauer during Decompression Test No. 8. No further tests were run with Longines Wittnauer chronographs.

c) Omega - It gained 21 minutes during the Decompression Test and lost 15 minutes during the Acceleration Test. The luminescence on the dial was destroyed during testing. At the conclusion of all testing the Omega chronograph operated satisfactorily.

The results of operational evaluations by the astronauts show a unanimous preference for the Omega chronograph over the other two brands because of better accuracy, reliability, readability and ease of operation.

 

[4Hz]

En resumidas cuentas, el Speedy es duro de narices, un poco más y lo ponen en la vía del tren a ver si aguanta...

Saludos

 

[ST200]

Son impresionantes las pruebas que hacian pasar a estos relojes, y seguro que el Speedmaster tuvo competencia con relojes de las mas prestigiosas marcas...

 

[santi]

Son impresionantes las pruebas que hacian pasar a estos relojes, y seguro que el Speedmaster tuvo competencia con relojes de las mas prestigiosas marcas...

Excelente, mas o menos lo habia leido, pero no expuesto de forma tan ordenada.
Tambien anduvo Rolex pero falló...

Unas fotos de mi Speedy

Recordais el monolito de Odisea en el Espacio 2001??

 

[javileon911]

que bonito es y que buen reloj, imprescindible, y con esas fotos mas. Menos mal que este lo tengo.Que sino me haces comprarme otro santi.