Chinook helicopters

  • IASbaba
  • September 2, 2022
  • 0
Science and Technology
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In News: The US Army has grounded its fleet of CH-47 Chinook helicopters after finding the helicopter to be at risk of engine fires. The Indian Air Force (IAF) also operates a fleet of Chinook Helicopters.

Why has the US Army grounded Chinooks?

  • The US Army operates around 400 Chinook helicopters which are medium-lift, multi-role helicopters manufactured by Boeing who perform a variety of tasks in support of Army operations.
  • As per the news, the Chinook fleet has been grounded by the US Army as it is suspected that some engine fires broke out on an unspecified number of helicopters.

About Chinnok

  • India had signed a 3-billion-dollar deal with the US in 2015 for the purchase of 15 Chinook heavy lift and 22 AH-64E Apache attack helicopters.


  • The Chinook is a multi-role, vertical-lift platform, which is used for transporting troops, artillery, equipment and fuel.
  • It is also used for humanitarian and disaster relief operations and in missions such as transportation of relief supplies and mass evacuation of refugees.
  • Chinooks have a unique twin engine, tandem rotor design which has become one of the most visibly recognised symbols of the American armed forces.
  • The helicopter, which can carry around 10 tonnes of load, significantly enhanced IAF’s air lift capabilities.

Source: Indian Express

Previous Year Question

Q.1) With reference to the Agni-IV Missile, which of the following statement(s) is/are correct? (2014)

  1. It is a surface-to-surface missile.
  2. It is fuelled by liquid propellant only.
  3. It can deliver a one-tonne nuclear warhead about 7500 km away.

Select the correct answer using the codes given below.

  1. 1 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3


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