Water injection by G system on a helicopter. Econologie.com » News and new » Water injection by G system on a helicopter. September 18, 2006 May 26th 2016 Christophe A major first, water injection work via a G system “takes off”… in a helicopter. Learn more and discuss about the forum. On the same subject :What are the different types of pool robots?Water injection in engines: in briefEnergy saving certificates: how to benefit from them?Roof insulation work: comparative guide 2020Real estate: focus on environmental standards in 2021Water engine: the facts and results on the water injection engineWater doping on the helicopter: a farce?Renewable energies: advantages and disadvantages