Among manufacturers of turbofans for business aircraft, Williams retains the number-one slot in product support but is not alone at the top this year, sharing the honors with Rolls-Royce, which moves up from the number-three slot it held last year.
Rolls-Royce and Williams both scored 8.0 this year, representing a drop of 0.1 for Williams and a gain of 0.3 for Rolls over last year. Honeywell takes second place with 7.9, up from 7.8 last year. CFE, GE and Pratt & Whitney Canada all tie for third this year with 7.6. CFE moves to third from fifth and 7.3 last year; GE drops to third this year from second last year; and P&WC climbs to third this year from fourth last year.
In the individual turbofan type rankings, Honeywell’s HTF7000 series is still top dog, with 8.1 this year versus 8.3 last year. In close second is the engine that made the greatest gain this year–the Rolls-Royce BR700 series, which ranked tenth last year with 7.6 and jumped to second this year with 8.0. Also scoring 8.0 and tying for second place are the R-R Tay (which also placed second last year with 8.2) and the Williams FJ44 (up from third with 8.1 last year). Tying for third are the Honeywell TFE731 (up from seventh last year) and the R-R AE3007 (down from second last year). Two P&WC turbofans tie for fourth: the PW500 series (up from seventh last year) and the PW600 series (up from sixth last year). The GE CF34 takes fifth place again this year with 7.7 (down from 7.9 last year). Tying at sixth with 7.6 are the CFE738 (up from 7.3 and tenth last year) and the P&WC PW300 series (up from 7.5 and ninth last year). Taking seventh place is the P&WC JT15D with 7.2 (down from 8.0 and fourth place last year).
The rankings this year for who provides the best support among the makers of turboprop engines for business aircraft, according to AIN readers, are in exactly the same order as last year. Honeywell retains the top spot, followed by P&WC, Rolls-Royce and Turbomeca. By turboprop engine model, the TPE331 remains at the top spot with a score of 8.5, up 0.1 from last year. In second place is the P&WC PT6A, followed by its PW200-series stablemates in third place. P&WC’s PT6T/B/C turboshaft comes in fourth. In fifth place is the Rolls-Royce 250 turboshaft, and the Turbomeca Arriel turboshaft finishes sixth.