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  2. T-80 - Wikipedia

    en.wikipedia.org/wiki/T-80

    Both were hybrids of the IS-7 and the T-10 heavy tanks, powered by the GTD-1 turbine engine, weighing 53.5 tonnes and armed with an M65 130 mm tank gun. The turbine engine allowed the tank to reach a maximum speed of 57.3 km/h (35.6 mph), however with only 1,950 liters of fuel on board, their range was limited to only 300 km (190 mi).

  3. Pratt & Whitney JT9D - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_JT9D

    The engine featured a single-stage fan, a three-stage low-pressure compressor, and an eleven-stage high-pressure compressor coupled to a two-stage high-pressure turbine and four-stage low-pressure turbine. The JT9D-3, the earliest certified version of the engine, weighed 8,470 lb (3,840 kg) and produced 43,500 lbf (193 kN) thrust. [7]

  4. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation. Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems.

  5. Turbine engine failure - Wikipedia

    en.wikipedia.org/wiki/Turbine_engine_failure

    A turbine engine failure occurs when a gas turbine engine unexpectedly stops producing power due to a malfunction other than fuel exhaustion. It often applies for aircraft , but other turbine engines can also fail, such as ground-based turbines used in power plants or combined diesel and gas vessels and vehicles.

  6. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    Shaft — The shaft connects the turbine to the compressor, and runs most of the length of the engine. There may be as many as three concentric shafts, rotating at independent speeds, with as many sets of turbines and compressors. Cooling air for the turbines may flow through the shaft from the compressor.

  7. Grubhub to pay $25 million for misleading customers ... - AOL

    www.aol.com/news/grubhub-pay-25-million...

    (Reuters) -Grubhub settled with the U.S. Federal Trade Commission and Illinois Attorney General Kwame Raoul on Tuesday for allegedly misleading customers about order fees, adding restaurants to ...

  8. Today's Wordle Hint, Answer for #1272 on Thursday, December ...

    www.aol.com/todays-wordle-hint-answer-1272...

    Today's Wordle Answer for #1272 on Thursday, December 12, 2024. Today's Wordle answer on Thursday, December 12, 2024, is VYING. How'd you do? Next: Catch up on other Wordle answers from this week.

  9. Attic fan - Wikipedia

    en.wikipedia.org/wiki/Attic_fan

    An attic fan installed underneath a roof A powered attic ventilator , or attic fan , is a ventilation fan that regulates the heat level of a building's attic by exhausting hot air. A thermostat is used to automatically turn the fan off and on, while sometimes a manual switch is used.

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