• Thumbnail for Allison Model 250
    250-C20 250-C20B 250-C20F 250-C20J 420 hp (310 kW) 250-C20R 250-C20R/1 250-C20R/2 250-C20R/4 250-C20S 250-C20W 250-C22B 250-C28 250-C28B 250-C28C 250-C30...
    12 KB (1,322 words) - 08:57, 27 June 2024
  • Thumbnail for MD Helicopters MD 500
    work, being furnished with an enlarged main rotor and more powerful Allison 250-C30 engine, capable of producing up to 425 hp. During January 1984, Hughes...
    32 KB (3,281 words) - 08:51, 30 July 2024
  • Thumbnail for Bell 206
    206L used an Allison 250-C20B engine, and a series of model upgrades replaced this engine with more powerful versions; the 206L-1 used a 250-C28, and the...
    48 KB (4,265 words) - 23:30, 28 July 2024
  • Thumbnail for SIAI-Marchetti SM.1019
    Prototype with 317hp (236kW) Allison 250-B15C turboprop engine, one built SM.1019A Production with 317hp (236kW) Allison 250-B15G 400hp turboprop engine...
    6 KB (721 words) - 15:19, 17 August 2023
  • Thumbnail for MBB Bo 105
    main rotor from Westland Helicopter's Scout rotorcraft and a pair of Allison Model 250 turboshaft engines instead of their production counterparts. Sud Aviation...
    58 KB (5,281 words) - 04:23, 15 July 2024
  • Thumbnail for Allison Engine Company
    The Allison Engine Company was an American aircraft engine manufacturer. Shortly after the death of James Allison in 1929 the company was purchased by...
    23 KB (2,514 words) - 12:13, 15 May 2024
  • Thumbnail for SIAI-Marchetti SF.260
    performed the first flight of a turboprop-powered SF.260TP, powered by an Allison Model 250 engine flat-rated at 350 shp. This variant was marketed towards the...
    42 KB (5,042 words) - 08:42, 16 May 2024
  • Allison Transmission Holdings Inc. is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products...
    50 KB (4,596 words) - 13:28, 5 April 2024
  • Thumbnail for Eurocopter AS355 Écureuil 2
    AS355 F1 Powered by two Allison 250-C20F engines, 2,400 kg (5,291 lb) Maximum weight. AS355 F2 Powered by two Allison 250-C20F engines, 2,540 kg (5...
    29 KB (2,503 words) - 09:04, 2 April 2024
  • Thumbnail for Sikorsky S-76
    initial production aircraft, these engines were Allison 250-C30s, a variant of the popular Allison 250 engine that was developed specially for the S-76l...
    47 KB (4,370 words) - 20:01, 22 July 2024
  • Thumbnail for Maule M-7
    MX-7-180C Millennium MX-7-250 Starcraft MX-7 with Allison 250 turboprop engine MX-7-420 Starcraft Turboprop MX-7-235 with Allison 250 turboprop engine MXT-7-160...
    8 KB (690 words) - 23:58, 17 April 2024
  • Thumbnail for Cessna 210 Centurion
    production year 1986, 40 built. Prop Jet Centurion 250 Cessna turboprop conversion of P210 powered by Allison 250-B17 engine. One converted, flying in 1984. No...
    27 KB (2,870 words) - 20:34, 24 July 2024
  • Thumbnail for Partenavia P.68
    long, retractable gear AP68TP-600 "Viator", with two 328 hp (245 kW) Allison 250-B17C turboprops, has a 2850–3000 kg (6283-6614 lb) MTOW and was certified...
    16 KB (1,341 words) - 23:40, 24 February 2024
  • Thumbnail for Bell 407
    includes 35% larger main cabin windows. The more powerful Rolls-Royce/Allison 250-C47 turboshaft allows an increase in Maximum Takeoff Weight and improves...
    25 KB (2,297 words) - 16:46, 30 July 2024
  • by Messerschmitt-Bölkow-Blohm of Ottobrunn, Germany, powered by two Allison 250-C20 turboshafts, and 8 anti-tank missiles. It was based on the mechanical...
    2 KB (126 words) - 04:30, 13 June 2022
  • Thumbnail for Kamov Ka-226
    offers much better performance compared to production Ka-226s powered by Allison 250-C20R/2 engines. It was reported earlier that deliveries of Ka-226 helicopters...
    14 KB (1,306 words) - 17:11, 4 May 2024
  • Thumbnail for Rolls-Royce AE 2100
    developed by Allison Engine Company, now part of Rolls-Royce North America. The engine was originally known as the GMA 2100, when Allison was a division...
    21 KB (1,922 words) - 02:57, 8 February 2024
  • Thumbnail for Beechcraft Bonanza
    certified a conversion of Beech A36 Bonanza aircraft to be powered by an Allison 250-B17C turboprop engine. Continental Voyager Bonanza (A36) Standard aircraft...
    56 KB (5,788 words) - 01:44, 30 July 2024
  • Thumbnail for Britten-Norman BN-2 Islander
    project evolved into the Turbine Islander (BN-2T), equipped with a pair of Allison 250 turboprop engines instead. However, Fairey encountered financial difficulty...
    59 KB (5,666 words) - 19:48, 18 July 2024
  • Thumbnail for Bell 222/230
    222 is the Bell 230, with the 222's LTS 101 engines replaced by two Allison 250 turboshaft engines, plus other refinements. A converted 222 first flew...
    16 KB (1,279 words) - 22:15, 6 June 2024
  • Thumbnail for AgustaWestland AW109
    reoriented to fulfil this in 1969, opting to outfit it with a pair of Allison 250-C14 turboshaft engines. While early considerations had been made for...
    61 KB (5,443 words) - 09:14, 21 July 2024
  • Thumbnail for RFB Fantrainer
    powered by a 545 shp (406 kW) Allison 250-C20B, and the Fantrainer 600, which was powered by a 650 shp (480 kW) Allison 250-C30. According to aerospace...
    18 KB (2,170 words) - 18:08, 16 March 2024
  • Thumbnail for MTT Turbine Superbike
    to head the project. Early models were powered by a Rolls-Royce-Allison Model 250-C18 gas turbine producing a claimed 320 hp (240 kW) at 52,000 rpm...
    9 KB (869 words) - 07:11, 26 May 2024
  • Thumbnail for Cessna 414
    conversion of the Cessna 414, named the Turbo Star Pressurized 414, using Allison 250-B17B engines. Scenic Airlines of Las Vegas purchased the rights to the...
    10 KB (816 words) - 20:05, 23 November 2023
  • Thumbnail for Fairchild Hiller FH-1100
    operators of the FH-1100 were impacted by a serious issue with the Allison Model 250-C18 turboshaft powerplant it used, the exhibited failure rate was...
    23 KB (2,276 words) - 12:23, 14 May 2024
  • Thumbnail for Bell 427
    relatively straightforward twin-engine development of the Bell 407 with two Allison 250-C22B engines. However, Bell concluded that the payload-range performance...
    11 KB (986 words) - 20:28, 31 December 2023
  • Thumbnail for Bell 430
    main rotor. Although both the 230 and 430 are powered by Rolls-Royce (Allison) 250 turboshaft engines, the 430's engines are 10% more powerful. Other changes...
    12 KB (864 words) - 09:36, 16 July 2024
  • Thumbnail for Allison T56
    The Allison T56 is an American single-shaft, modular design military turboprop with a 14-stage axial flow compressor driven by a four-stage turbine. It...
    28 KB (3,001 words) - 03:30, 19 August 2023
  • Thumbnail for Mil Mi-34
    Mayor Office. Mi-34A – Luxury version, intended to be powered by an Allison 250-C20R turboshaft engine. None built. Mi-34M1 and Mi-34M2 – Proposed twin-turbine...
    6 KB (673 words) - 14:46, 9 January 2024
  • Thumbnail for Fuji T-3
    the Fuji T-7, a turboprop variant of the T-3. with a 400 shp (300 kW) Allison 250 engine.  Japan Japan Air Self-Defense Force Data from Jane's Aircraft...
    5 KB (488 words) - 00:10, 13 May 2023