Allison (Rolls-Royce) 250 series
446 aircraft on the U.S. register carry an Allison (Rolls-Royce) 250 series engine, rated at about 250 horsepower. The Bell 206 JetRanger and LongRanger is the model most often fitted with it (243 aircraft). The aircraft carrying it were built between 1962 and 2005.
The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Allison (Rolls-Royce) 250 series (6 codes). FAA spellings: 250 SER 250HP · 250 SER 250HP · 250 SER 317HP · 250 SER 400HP · 250 SERIES · 250 SER.
Fitted to model families
Bell 206 JetRanger and LongRanger243Hughes Helicopters Inc HUGHES 36952Hughes 369 500 series helicopters34Bell 40723Bell 4716Hiller UH-1215Enstrom Helicopter Corp 48012Bell 4308Beechcraft A36 Bonanza7Fairchild Hiller FH-11005Cessna P210 Pressurized Centurion3Siai-Marchetti SM-10193
Bell 206 JetRanger and LongRanger · Hughes Helicopters Inc HUGHES 369 · Hughes 369 500 series helicopters · Bell 407 · Bell 47 · Hiller UH-12 · Enstrom Helicopter Corp 480 · Bell 430 · Beechcraft A36 Bonanza · Fairchild Hiller FH-1100
Where they are owner's state
Delaware46California43Florida32Texas30Missouri18Louisiana18Oregon17Alaska17Montana16Washington12
Kind of aircraft
Helicopters422 (95%)Piston singles16 (4%)Turboprops7 (2%)Piston twins1 (0.2%)
When the aircraft were built by decade
Connections how this engine series links to the rest of the register
Fitted to
- Bell 206 JetRanger and LongRanger 243 with this engine series
- Hughes Helicopters Inc HUGHES 369 52 with this engine series
- Hughes 369 500 series helicopters 34 with this engine series
- Bell 407 23 with this engine series
- Bell 47 16 with this engine series
- Hiller UH-12 15 with this engine series
- Enstrom Helicopter Corp 480 12 with this engine series
- Bell 430 8 with this engine series
Where they are
- Delaware 46 of these aircraft
- California 43 of these aircraft
- Florida 32 of these aircraft
- Texas 30 of these aircraft
- Missouri 18 of these aircraft
Biggest operators
- Air Evac Ems INC 17 of these aircraft
- Temsco Helicopters INC 6 of these aircraft
- Summit Helicopters INC 4 of these aircraft
- Ranger Aviation Leasing LLC 4 of these aircraft
- Magnum Aviation LLC 4 of these aircraft
Analytics
These connections as data: /graph/engine/allison-rolls-royce-250-series.json · about the eFlight graph.
Aircraft newest certificates first · 446
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N305CH | Bell Helicopter Textron 206L-1 |
Rotorcraft | Geco INC Wilmington, Delaware |
Standard | 2026-09-09 | ValidFAA registration status code V: Valid registration. All codes |
| N941SC | Bell 206B |
Rotorcraft | Hover One LLC Lucas, Texas |
Standard | 2026-09-07 | ValidFAA registration status code V: Valid registration. All codes |
| N20316 | Bell Helicopter Textron 206L-1 |
Rotorcraft | Back Nine Aerial LLC New Berlin, Wisconsin |
Restricted | 2026-09-01 | ValidFAA registration status code V: Valid registration. All codes |
| N430NY | Bell 430 |
Rotorcraft | Mcmahon Helicopter Services INC Canton, Michigan |
Standard | 2026-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N16770 | Bell 206B |
Rotorcraft | R & T Aviation LLC Ethel, Louisiana |
Multiple | 2026-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N219SH | Bell 206B |
Rotorcraft | Standard | 2026-08-10 | ValidFAA registration status code V: Valid registration. All codes | |
| N332MH | Bell 206B |
Rotorcraft | Xtreme Aviation LLC Falkville, Alabama |
Standard | 2026-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N2239W | Bell 206A |
Rotorcraft | Individual owner Montana |
Standard | 2026-07-08 | ValidFAA registration status code V: Valid registration. All codes |
| N5000G | Bell Helicopter Textron 206L-1 |
Rotorcraft | Timberland Helicopters INC Ashland, Oregon |
Standard | 2026-07-08 | ValidFAA registration status code V: Valid registration. All codes |
| N250DE | Bell 206B |
Rotorcraft | Akheli99 LLC Anchorage, Alaska |
Standard | 2026-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N348 | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Bhh Leasing #2 LLC Pensacola, Florida |
Standard | 2026-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N160TH | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Co-owned owner Florida |
Standard | 2026-06-23 | ValidFAA registration status code V: Valid registration. All codes |
| N407FC | Bell 407 |
Rotorcraft | Intermountain Medical Transport LLC Salt Lake City, Utah |
Standard | 2026-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N50046 | Bell Helicopter Textron 206L-1 |
Rotorcraft | Orlando Aircraft Sales LLC Orlando, Florida |
Restricted | 2026-06-16 | ValidFAA registration status code V: Valid registration. All codes |
| N150HH | Bell 206B |
Rotorcraft | Cascade Airways LLC Jefferson, Oregon |
Standard | 2026-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N2072M | Bell Helicopter Textron 206L-1 |
Rotorcraft | Orlando Aircraft Sales LLC Orlando, Florida |
Restricted | 2026-06-02 | ValidFAA registration status code V: Valid registration. All codes |
| N13WD | Hughes 369HS |
Rotorcraft | Grayman Group LLC Coeur D Alene, Idaho |
Standard | 2026-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N1107T | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Aviation Advantage INC Tabor City, North Carolina |
Standard | 2026-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N1110Q | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Aviation Advantage INC Tabor City, North Carolina |
Standard | 2026-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N369MP | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Aviation Advantage INC Tabor City, North Carolina |
Standard | 2026-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N622PA | Bell 206B |
Rotorcraft | Patriot Aviation INC Greenville, Delaware |
Standard | 2026-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N926ES | Hughes 369HS |
Rotorcraft | Royal Helicopter Services LLC Exeter, California |
Standard | 2026-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N362MN | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Heli AG LLC Plantersville, Texas |
Multiple | 2026-04-20 | ValidFAA registration status code V: Valid registration. All codes |
| N206YT | Bell 206B |
Rotorcraft | Rocky Mountain Grading LLC Alamo, Nevada |
Standard | 2026-04-17 | ValidFAA registration status code V: Valid registration. All codes |
| N821CA | Bell 206B |
Rotorcraft | Chem-Air LLC Shreveport, Louisiana |
Restricted | 2026-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N2192 | Bell 206B |
Rotorcraft | Flyers Enterprises INC Alpine, California |
Standard | 2026-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N559F | Fairchild Hiller FH-1100 |
Rotorcraft | Bo LLC Wilmington, Delaware |
Standard | 2026-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N9052F | Hughes 369HS |
Rotorcraft | Motivated Air LLC Felton, Delaware |
Standard | 2026-03-09 | ValidFAA registration status code V: Valid registration. All codes |
| N2274W | Bell 206B |
Rotorcraft | Individual owner California |
Multiple | 2026-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N622PB | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Individual owner Idaho |
Standard | 2026-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N220T | Cessna P210N |
Fixed-wing, single engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N5313Y | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Seley CORP Ketchikan, Alaska |
Standard | 2026-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N1435W | Bell 206B |
Rotorcraft | Farwest Aviation LLC Billings, Montana |
Standard | 2026-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N808PH | Bell 407 |
Rotorcraft | Whirl'D Helicopters INC Sevierville, Tennessee |
Standard | 2025-12-11 | ValidFAA registration status code V: Valid registration. All codes |
| N430VR | Bell Helicopter Textron Canada 430 |
Rotorcraft | Aerotrust Services CORP Wilmington, Delaware |
Standard | 2025-11-12 | ValidFAA registration status code V: Valid registration. All codes |
| N965RW | Enstrom Helicopter Corp 480B |
Rotorcraft | Individual owner New Hampshire |
Standard | 2025-11-10 | ValidFAA registration status code V: Valid registration. All codes |
| N109DX | Bell 206B |
Rotorcraft | Sunwest Construction Enterprises INC Tarpon Springs, Florida |
Standard | 2025-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N5FC | Hughes 369HS |
Rotorcraft | Sara Helicopters INC Wilmington, Delaware |
Standard | 2025-10-21 | ValidFAA registration status code V: Valid registration. All codes |
| N16832 | Bell 206B |
Rotorcraft | Co-owned owner Texas |
Standard | 2025-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N502HB | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Active Aviation LLC Newark, Delaware |
Standard | 2025-09-29 | ValidFAA registration status code V: Valid registration. All codes |
| N206SF | Bell 206B |
Rotorcraft | Alpha Echo Leasing LLC Sedona, Arizona |
Standard | 2025-08-27 | ValidFAA registration status code V: Valid registration. All codes |
| N101AL | Cessna U206G |
Fixed-wing, single engine | Restricted | 2025-07-29 | ValidFAA registration status code V: Valid registration. All codes | |
| N433HA | Bell 206B |
Rotorcraft | Helo N433Ha LLC Richmond, Virginia |
Standard | 2025-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N189RL | Bell 206B |
Rotorcraft | L&R Investment Partners LLC Wilmington, Delaware |
Standard | 2025-07-23 | ValidFAA registration status code V: Valid registration. All codes |
| N37AJ | Bell 206B |
Rotorcraft | L&R Investment Partners LLC Wilmington, Delaware |
Standard | 2025-07-23 | ValidFAA registration status code V: Valid registration. All codes |
| N40DV | Cessna U206G |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2025-07-18 | ValidFAA registration status code V: Valid registration. All codes |
| N111BV | Bell 206B |
Rotorcraft | Oceanside Vertical Express LLC Canaan, New York |
Standard | 2025-07-05 | ValidFAA registration status code V: Valid registration. All codes |
| N217JS | Bell 206B |
Rotorcraft | Oceanside Vertical Express LLC Canaan, New York |
Standard | 2025-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N990SR | Hughes 369HS |
Rotorcraft | Blue Penguin LLC Lockhart, Texas |
Multiple | 2025-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N1078N | Bell Helicopter Textron 206L-1 |
Rotorcraft | Bank of Utah Trustee Salt Lake City, Utah |
Restricted | 2025-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N406PW | Bell Helicopter Textron 206L-1 |
Rotorcraft | Bank of Utah Trustee Salt Lake City, Utah |
Restricted | 2025-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N520HC | Mcdonnell Douglas Helicopter 520N |
Rotorcraft | Valiair Lc Trustee Casper, Wyoming |
Multiple | 2025-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N2672 | Beech A36 |
Fixed-wing, single engine | Reynolds Aviation LLC Wills Point, Texas |
Standard | 2025-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N554RP | Messerschmitt-Boelkow-Blohm-Gm BO-105C |
Rotorcraft | Twin Rotors Flying Circus LLC Port Orange, Florida |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N2251W | Bell 47G-5 |
Rotorcraft | Johnson Aerial Spraying LLC Brayton, Iowa |
Restricted | 2025-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N68GG | Bell 206B |
Rotorcraft | Ja Aviation Services LLC Kalispell, Montana |
Standard | 2025-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N493BN | Hiller UH-12D |
Rotorcraft | Co-owned owner Wisconsin |
Restricted | 2025-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N333LW | Bell 206B |
Rotorcraft | Bohica Consulting Service of Nevada INC Boulder City, Nevada |
Standard | 2025-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N633MB | Messerschmitt-Boelkow-Blohm BO-105S |
Rotorcraft | Centerline Holdings INC Camden, Delaware |
Standard | 2025-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N206SH | Bell 206B |
Rotorcraft | Mc Helicopter LLC Summerfield, Florida |
Standard | 2025-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N480RS | Enstrom Helicopter Corp 480 |
Rotorcraft | Euroaviation INC Trustee Kematen, |
Standard | 2025-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N974WB | Bell 206B |
Rotorcraft | Ck Helicopters LLC Jasper, Indiana |
Restricted | 2025-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N411AF | Hughes 369HS |
Rotorcraft | Teryjon Aviation INC Bluefield, Virginia |
Multiple | 2025-01-02 | ValidFAA registration status code V: Valid registration. All codes |
| N887EH | Bell 206B |
Rotorcraft | Vertical Vegetation Management LLC Darlington, Indiana |
Restricted | 2024-10-21 | ValidFAA registration status code V: Valid registration. All codes |
| N430ST | Bell 430 |
Rotorcraft | High Performance Helicopters CORP Crestline, California |
Standard | 2024-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N612BR | Bell 206B |
Rotorcraft | Brown Helicopter INC Pensacola, Florida |
Standard | 2024-07-31 | ValidFAA registration status code V: Valid registration. All codes |
| N641LB | Mcdonnell Douglas Helicopter 600N |
Rotorcraft | Gr (Uk) INC Trustee Wilmington, Delaware |
Standard | 2024-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N126SH | Bell 206B |
Rotorcraft | Key West Helicopters LLC Key West, Florida |
Standard | 2024-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N206BG | Bell 206B |
Rotorcraft | Merced County Sherrifs Office Merced, California |
Standard | 2024-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N347M | Beech A36TC |
Fixed-wing, single engine | Jam Zoom Yayos LLC Manheim, Pennsylvania |
Standard | 2024-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N981RD | Cessna TU206G |
Fixed-wing, single engine | Sunrise Adventures LLC Stillwater, Minnesota |
Standard | 2024-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N58341 | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | N953Xt LLC Henderson, Nevada |
Standard | 2024-04-25 | ValidFAA registration status code V: Valid registration. All codes |
| N411KS | Bell 206B |
Rotorcraft | Northwest Helicopters LLC Olympia, Washington |
Standard | 2024-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N601GM | Bell Helicopter Textron 206L-1 |
Rotorcraft | North Wind Aviation LLC Cottage Grove, Oregon |
Standard | 2024-03-30 | ValidFAA registration status code V: Valid registration. All codes |
| N16671 | Bell 206B |
Rotorcraft | Sarkinen Plumbing INC Portland, Oregon |
Multiple | 2024-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N183P | Raytheon Aircraft Company A36 |
Fixed-wing, single engine | Skytech Cc LLC Santa Rosa Beach, Florida |
Standard | 2024-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N38Q | Bell Helicopter Textron 206L-1 |
Rotorcraft | Hawkeye Helicopter LLC Lyndon, Kansas |
Standard | 2024-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N363CC | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2024-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N138DD | Bell Helicopter Textron 206L-1 |
Rotorcraft | Dalton Aviation LLC Bluffdale, Utah |
Standard | 2024-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N10JS | Siegel Jerry S PRESCOTT PUSHER |
Fixed-wing, single engine | Individual owner California |
Experimental | 2024-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N10699 | Bell 206B |
Rotorcraft | Co-owned owner Montana |
Standard | 2024-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N25BH | Bell Helicopter Textron 206L-1 |
Rotorcraft | 25Bh LLC Lewes, Delaware |
Standard | 2024-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N400UC | Bell 206B |
Rotorcraft | Pacific Rotors INC Oceanside, California |
Restricted | 2024-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N21772 | Hughes 369A |
Rotorcraft | N21772 LLC Wellington, Florida |
Standard | 2024-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N320CM | Bell 206B |
Rotorcraft | Dyvig Enteprises LLC Northwood, Iowa |
Multiple | 2023-12-31 | ValidFAA registration status code V: Valid registration. All codes |
| N59410 | Bell 47G3B2A |
Rotorcraft | Johnson Helicopter Service INC Kuna, Idaho |
Standard | 2023-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N1133C | Hughes 369HS |
Rotorcraft | Sara Helicopters INC Wilmington, Delaware |
Standard | 2023-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N27HX | Bell 407 |
Rotorcraft | Helicopter Express LLC Chamblee, Georgia |
Standard | 2023-12-06 | ValidFAA registration status code V: Valid registration. All codes |
| N29HX | Bell 206B |
Rotorcraft | Helicopter Express LLC Chamblee, Georgia |
Standard | 2023-12-06 | ValidFAA registration status code V: Valid registration. All codes |
| N369LR | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Centerline Holdings INC Camden, Delaware |
Standard | 2023-11-28 | ValidFAA registration status code V: Valid registration. All codes |
| N27JB | Bell 206B |
Rotorcraft | Cape Gyro INC North Chatham, Massachusetts |
Standard | 2023-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N59612 | Bell 206B |
Rotorcraft | Ranger Aviation Leasing LLC Wilmington, Delaware |
Restricted | 2023-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N2266A | Bell 47G-3B-1 |
Rotorcraft | Dt Pralle Enterprise INC Hampton, Iowa |
Standard | 2023-10-28 | ValidFAA registration status code V: Valid registration. All codes |
| N481RD | Bell 47G-3B-2 |
Rotorcraft | Co-owned owner Idaho |
Standard | 2023-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N369KE | Hughes 369A |
Rotorcraft | Cbft LLC Mobile, Alabama |
Standard | 2023-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N57Z | Bell 206B |
Rotorcraft | T&T Transportation INC Lafayette, Indiana |
Standard | 2023-10-11 | ValidFAA registration status code V: Valid registration. All codes |
| N76PE | Bell 206B |
Rotorcraft | Carson Secure Transport East LLC Carson City, Nevada |
Standard | 2023-09-23 | ValidFAA registration status code V: Valid registration. All codes |
| N58428 | Hughes Helicopters Inc HUGHES 369D |
Rotorcraft | Teryjon Aviation INC Bluefield, Virginia |
Multiple | 2023-08-30 | ValidFAA registration status code V: Valid registration. All codes |
| N206WL | Bell Helicopter Textron 206L-1 |
Rotorcraft | Summit Helicopters INC Salem, Virginia |
Standard | 2023-08-26 | ValidFAA registration status code V: Valid registration. All codes |
| N123NM | Bell 47G-3B-2 |
Rotorcraft | Aglk LLC Lewes, Delaware |
Restricted | 2023-08-23 | ValidFAA registration status code V: Valid registration. All codes |
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.