Página 1 de 1
Oil Drums

Publicado:
25 Ago 2011, 15:08
por m606paz
Oil drums being stored on a US military base abroad.
Location: Okinawa, Ryukyu Islands
Date taken: December 1957
Photographer: John Dominis
Que les parece para pintar los tambores que llevaremos a AC???
De que color serán?

Publicado:
25 Ago 2011, 15:54
por martinelterrible
Los vas a llevar enteros o cortados a lo largo en mitades?

Publicado:
25 Ago 2011, 15:57
por m606paz
Enteros...No comprendo la pregunta...
A view of the many fuel tanks being stored on a military base.
Location: Morocco
Date taken: 1957
Photographer: Loomis Dean


Publicado:
25 Ago 2011, 16:19
por martinelterrible
...........

Publicado:
25 Ago 2011, 16:24
por martinelterrible
...........

Publicado:
25 Ago 2011, 16:49
por m606paz
Ahhhhhhh.....
No es mala idea, te matan con el precio de las Hamburguesas y encima crudas.....

Publicado:
25 Ago 2011, 17:09
por m606paz

Publicado:
25 Ago 2011, 18:07
por martinelterrible
para que usarian tanto metanol???....la napalm se hace con nafta...y para grapa no sirve....

Publicado:
27 Ago 2011, 19:04
por Patman
El metanol sera para algo de aviacion?
Los tambores normalmente son verde oliva. Aunque tambien los e visto color arena. El mio lo tengo pintado color arena.

Publicado:
27 Ago 2011, 19:45
por martinelterrible
Pat,imagino que eran negros,mira que nam no fue ww2,mucha logistica estuvo en manos de contratistas,como la provision,imagino que los tambores tendrian los colores comerciales en gral,azules,blancos o negros...de todas formas,por norma,el color deberia marcar el contenido,pero vaya a saber uno....para colmo se ven casi todas las fotos B&W
un abrazo
PD,se me ocurre muchas cosas con el metanol...pero en esas cantidades? vaya a saber...

Publicado:
27 Ago 2011, 23:28
por fepago
el methanol se utiliza como aditivo en motores de aviacion, tanto jets como a piston, mas en la epoca de esa foto:
It used to be commonplace for large piston engines to require special fluids to increase their take-off power. Similar injection systems are also incorporated in some turbo-jet and turbo-prop engines. The power increase is achieved by cooling the air consumed, to raise its density and thereby increase the weight of air available for combustion. This effect can be obtained by using water alone but it is usual to inject a mixture of methanol and water to produce a greater degree of evaporative cooling and also to provide additional fuel energy.
For piston engines, methanol/water mixtures are used and these may have 1 percent of a corrosion inhibiting oil added. The injection system may be used to compensate for the power lost when operating under high temperature and/or high altitude conditions (i.e. with low air densities) or to obtain increased take-off power under normal atmospheric conditions, by permitting higher boost pressure for a short period.
Both water alone and methanol/water mixtures are used in gas turbine engines, principally to restore the take-off power (or thrust) lost when operating under low air density conditions. Use of a corrosion inhibitor in power boost fluids supplied for these engines is not permitted.
The methanol and water used must be of very high quality to avoid formation of engine deposits. The water must be either demineralised or distilled and the only adulterant permitted in the methanol is up to 0.5 per cent of pyridine if required by local regulations as a de-naturant. In the past there were several different grades of water/methanol mixtures, e.g. 45/55/0 for turbine engines, 50/50/0 for piston engines (this was also available with 1% corrosion inhibiting oil and was designated 50/50/1) and 60/40/0, however, with decreasing demand Shell now only supplies 45/55/0. The table shows the principal characteristics of Shell demineralised water and of the commonly used methanol/water blend.

Publicado:
28 Ago 2011, 11:37
por martinelterrible
si pablo,la inyeccion de agua metanol es de ww2,pero....tanto...metanol..

Publicado:
28 Ago 2011, 13:20
por fepago
y de los jet, lea lo que puse en ingles:
Both water alone and methanol/water mixtures are used in gas turbine engines, principally to restore the take-off power (or thrust) lost when operating under low air density conditions

Publicado:
28 Ago 2011, 13:22
por fepago
F-80 Shooting Star Specifications
Primary Function: Fighter-bomber (T-33 is trainer version)
Contractor: Lockheed
Crew: One (Two in T-33 Trainer)
Cost: $93,456
Powerplant
Allison J33, with 5,400 lbs. of thrust (with water-alcohol injection) Dimensions
Length: 34 feet, 6 inches
Wingspan: 38 feet, 10 inches
Height: 11 feet, 4 inches
Weights
Empty: 7,920 lb -- P-80A
Maximum Takeoff: 16,856 lb
Performance
Speed: 580 mph
Ceiling: 46,800 feet
Range: 1,090 miles
Armament
Six .50 caliber machine guns and eight 5 inch rockets or 2,000 lbs. of bombs

Publicado:
28 Ago 2011, 23:36
por m606paz
Gracias pablo por la excelente explicacion!
Podes agregar bajo que condiciones y por que se utilizaba el metanol??