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The turbine and electrical equipment were about the same, though the side louver air intakes were replaced by the large roof-mounted intake first tested on UP 53. [3] UP 61 was used in multiple-unit control tests with diesels starting in 1958. These tests were successful and eventually all but six of the 4,500 hp (3,400 kW) GTELs were equipped ...
Three carbody variants were produced. Phase 1a units had air intake louvers in a continuous line along the top of the long hood and a wide separating strip between the radiator fans. Phase 1b had a "dip" in the long hood handrails that allowed them to better follow the profile of the side walkways.
Louvers were eliminated from the left side of the carbody, but kept on the engineer's side. A rectangular box opening on the roof provided fresh air for ventilation and cooling the air tanks. Pennsylvania and L&N U25Cs also had an extra equipment box and third handrail stanchion on the raised part of the walkway next to the radiator intake.
An automatic louver or damper that controls the fresh air flow into an air handler and modulates to the most energy efficient setting. outside air temperature A measure of the air temperature outside a building.
In the stowed position, the air intake was carried out through the side opening louvers. After blowing off the engine, the heated air came out through the aft louvers. The BT-SV turret did not have a niche, so the radio station was moved to the bow of the hull, where the fourth crew member, the radio operator, was located.
Type of louver in concept Louver used in a Stevenson screen Louver shutters in Italy Louvered cupola bell house. A louver (American English) or louvre (Commonwealth English; see spelling differences) is a window blind or shutter with horizontal slats that are angled to admit light and air, but to keep out rain and direct sunshine. The angle of ...
Three intakes (facing right) on an engine cowling When properly implemented, a NACA duct allows air to flow into an internal duct, often for cooling purposes, with a minimal disturbance to the flow. The design was originally called a submerged inlet, since it consists of a shallow ramp with curved walls recessed into the exposed surface of a ...
The original intake is shown in the top image. The fundamental design of a gas turbine engine is such that the air flow-rate entering its compressor is regulated by the amount of fuel burned in its combustor. For supersonic flight the air entering the inlet also has to be regulated to a similar amount by the design of the entrance of the inlet ...