Original sentence: Alexeev revolutionised the ship-building industry (though in secrecy) by inventing crafts that use ground effect, whereby (in very simple terms) a wing traveling close to the ground is provided with extra lift by the "cushion" of air compressed under it - thereby enabling a combination of greater aircraft weight for less power and/or enhanced fuel economy.Alexeev was the first to create high speed ships on the so-called low submerged underwater wings, the most popular ones beings passenger ships "Raketa", "Volga", "Meteor", "Kometa", "Burevestnik" with passenger capacity up to 150 persons and cruising speed up to 100 km/h.The A-90 boasted two turbojets and one turboprop engine which propelled it to a speed of 400 km/h for 1,500 km at a cruise altitude of 5-10 m
Edited sentence: Alexeev revolutionised the shipbuilding industry (though in secrecy) by inventing crafts that use ground effect, whereby (in very simple terms) a wing traveling close to the ground is provided with extra lift by the "cushion" of air compressed under it - thereby enabling a combination of greater aircraft weight for less power and/or enhanced fuel economy.Alexeev was the first to create high speed ships on the so-called low submerged underwater wings, the most popular ones beings passenger ships "Raketa", "Volga", "Meteor", "Kometa", "Burevestnik" with passenger capacity up to 150 persons and cruising speed up to 100 km/h.The A-90 boasted two turbojets and one turboprop engine which propelled it to a speed of 400 km/h for 1,500 km at a cruise altitude of 5-10 m