Williams claimed the top spot among turbofan makers while Honeywell retained its leadership in the turboprop sector.
Last year Rolls-Royce and Williams shared top honors among engine manufacturers in AIN’s annual product-support survey, each earning an overall average score of 8.0. This year, both companies improved on last year’s score but Williams (with an overall average score of 8.3) out-climbed Rolls-Royce (8.1) and stands alone at the summit.
