The technology in these engines is at least 50 years old, and the >manufacturers....................... have little incentive to improve the >product as long as the money flows in. The aviation community will keep >getting more of the same. Manufacturers actually have lots of >disincentive to innovate given our legal system. The major engine manufacturers effectively monopolize the market and as >a consequence thwart innovation................... In a relatively short period of time we would finally have engines
with at least 1990's technology, and competition would help lower costs.