Walter M601 series
28 aircraft on the U.S. register carry a Walter M601 series engine, rated at about 751 horsepower. The 293Rg Inc LANCAIR PROPJET is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 1970 and 2020.
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 Walter M601 series (2 codes). FAA spellings: M601 SER · M601 SER.
Fitted to model families
293Rg Inc LANCAIR PROPJET1Aero Commander S21Aircraft Builders One Inc AEROCOMP 7SL1Arnold Vasenden AVAIR 4P-XR1Ayres Corporation S-21Beechcraft C90 King Air C901Brewer Lance A LANCAIR IV-P PROP JT1Bt 750 Ltd LANCAIR IV-P1Cruce Andrew C LANCAIR IV P1Del Rio Arnold Lira LANCAIR PROPJET1Frank Koinzer BULLAIRCRAFT EXPLORE1Gb Aerial Applications Inc LANCAIR IV-P1
Model families, as a table
| aircraft | |
|---|---|
| 293Rg Inc LANCAIR PROPJET | 1 |
| Aero Commander S2 | 1 |
| Aircraft Builders One Inc AEROCOMP 7SL | 1 |
| Arnold Vasenden AVAIR 4P-XR | 1 |
| Ayres Corporation S-2 | 1 |
| Beechcraft C90 King Air C90 | 1 |
| Brewer Lance A LANCAIR IV-P PROP JT | 1 |
| Bt 750 Ltd LANCAIR IV-P | 1 |
| Cruce Andrew C LANCAIR IV P | 1 |
| Del Rio Arnold Lira LANCAIR PROPJET | 1 |
| Frank Koinzer BULLAIRCRAFT EXPLORE | 1 |
| Gb Aerial Applications Inc LANCAIR IV-P | 1 |
293Rg Inc LANCAIR PROPJET · Aero Commander S2 · Aircraft Builders One Inc AEROCOMP 7SL · Arnold Vasenden AVAIR 4P-XR · Ayres Corporation S-2 · Beechcraft C90 King Air C90 · Brewer Lance A LANCAIR IV-P PROP JT · Bt 750 Ltd LANCAIR IV-P · Cruce Andrew C LANCAIR IV P · Del Rio Arnold Lira LANCAIR PROPJET
Where they are owner's state
Kind of aircraft
By kind, as a table
| aircraft | share | |
|---|---|---|
| Turboprops | 20 | 71% |
| Piston singles | 8 | 29% |
What the FAA has certified, ordered and been told about the Walter M601 series the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 2 failure reports with the FAA since 1995, 2 of them in the last ten years.
Failure reports 2 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 07 | 1 |
| 14 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Friction Lock | 1 |
Latest reports
2014-09-24Unknown: odor
2007-01-11Friction Lock: inoperative
Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.
Connections how this engine series links to the rest of the register
Fitted to
- Aero Commander S2 1 with this engine series
- Ayres Corporation S-2 1 with this engine series
- Beechcraft C90 King Air C90 1 with this engine series
- Grumman Acft Eng Cor-Schweizer G-164 1 with this engine series
Where they are
- Florida 3 of these aircraft
- California 3 of these aircraft
- Texas 2 of these aircraft
- Oklahoma 2 of these aircraft
- New Mexico 2 of these aircraft
Biggest operators
- Vintage Aero Collection INC 1 of these aircraft
Airworthiness
- Failure reports on the Walter M601 series 2 reports since 1995
Analytics
The whole map of how records connect · these connections as data: /graph/engine/walter-m601-series.json.
Aircraft newest certificates first · 28
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N682KA | Beech C90 |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 2026-08-26 | ValidFAA registration status code V: Valid registration. All codes |
| N486EA | Performance Aircraft TURBINE LEGEND |
Fixed-wing, single engine | Kamikaze Air LLC Lake Mary, Florida |
Experimental | 2025-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N750BT | Bt 750 Ltd LANCAIR IV-P |
Fixed-wing, single engine | N750Bt LLC Crested Butte, Colorado |
Experimental | 2024-11-22 | ValidFAA registration status code V: Valid registration. All codes |
| N601PF | Ivpt Inc IV-PT PROPJET |
Fixed-wing, single engine | Individual owner Idaho |
Experimental | 2024-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N212JC | Toys 4 Boys JC 100 |
Fixed-wing, single engine | Matrix Sea Air and Land Brokerage LLC Hypoluxo, Florida |
Experimental | 2023-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N750DL | Link David L LANCAIR IVP |
Fixed-wing, single engine | Steve Jackson Racing LLC Helena, Montana |
Experimental | 2023-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N293RG | 293Rg Inc LANCAIR PROPJET |
Fixed-wing, single engine | Vintage Aero Collection INC Wilmington, Delaware |
Experimental | 2022-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N747TF | Wings Away Llc TURBINE LEGEND |
Fixed-wing, single engine | Mkm LLC Anchorage, Alaska |
Experimental | 2022-08-13 | ValidFAA registration status code V: Valid registration. All codes |
| N777DG | Gb Aerial Applications Inc LANCAIR IV-P |
Fixed-wing, single engine | Blue Chip Enterprises INC Clayton, North Carolina |
Experimental | 2022-08-08 | ValidFAA registration status code V: Valid registration. All codes |
| N63E | Grumman Acft Eng Cor-Schweizer G-164B |
Fixed-wing, single engine | Avag INC Richvale, California |
Restricted | 2021-10-13 | ValidFAA registration status code V: Valid registration. All codes |
| N9XW | Cruce Andrew C LANCAIR IV P |
Fixed-wing, single engine | Aerotica LLC Fleming Island, Florida |
Experimental | 2020-06-01 | ValidFAA registration status code V: Valid registration. All codes |
| N821DL | Aircraft Builders One Inc AEROCOMP 7SL |
Fixed-wing, single engine | Individual owner New Mexico |
Experimental | 2020-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N911EE | Hamby Bill L LANCAIR IVP PROPJET |
Fixed-wing, single engine | Utt LLC Missoula, Montana |
Experimental | 2019-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N661CM | Brewer Lance A LANCAIR IV-P PROP JT |
Fixed-wing, single engine | Bristol Bay Capital Partners INC King Salmon, Alaska |
Experimental | 2019-02-26 | ValidFAA registration status code V: Valid registration. All codes |
| N3644Y | Del Rio Arnold Lira LANCAIR PROPJET |
Fixed-wing, single engine | Rainbow Sports INC Enid, Oklahoma |
Experimental | 2017-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N357AV | Arnold Vasenden AVAIR 4P-XR |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2017-10-31 | ValidFAA registration status code V: Valid registration. All codes |
| N51AR | Aero Commander S2R |
Fixed-wing, single engine | Olsem Aerial Application Services LLC Westbrook, Minnesota |
Restricted | 2017-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N89NW | Hermann Bjorn LANCAIR IV |
Fixed-wing, single engine | Common Cents Holding Company LLC Memphis, Tennessee |
Experimental | 2016-12-09 | ValidFAA registration status code V: Valid registration. All codes |
| N753M | Maloney MM-LANCAIR IVP |
Fixed-wing, single engine | Vita Clean Services INC Wenatchee, Washington |
Experimental | 2015-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N6116A | Ridge Holdings Inc COMP-AIR 8 |
Fixed-wing, single engine | Individual owner Mississippi |
Experimental | 2015-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N666EX | Frank Koinzer BULLAIRCRAFT EXPLORE |
Fixed-wing, single engine | Sky West Aviation INC Trustee Albuquerque, New Mexico |
Experimental | 2015-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N555XT | Rivkin Vladimir LANCAIR IV-P |
Fixed-wing, single engine | Triple Five Air LLC Sioux Falls, South Dakota |
Experimental | 2012-04-30 | ValidFAA registration status code V: Valid registration. All codes |
| N3WQ | Horton David COMPAIR 8SS52 |
Fixed-wing, single engine | Symbiotic Assets LLC Winnemucca, Nevada |
Experimental | 2012-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N5UC | Hakala John Charles LANCAIR IV-P-T |
Fixed-wing, single engine | R V Stich Construction INC Richmond, California |
Experimental | 2009-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N9214M | Mahnke Mark C LANCAIR IV-P-T |
Fixed-wing, single engine | Individual owner California |
Experimental | 2008-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N532NC | Lee John D LANCAIR PROPJET |
Fixed-wing, single engine | Discover Resources LLC Norman, Oklahoma |
Experimental | 2007-11-16 | ValidFAA registration status code V: Valid registration. All codes |
| N12NT | Link John LANCAIR PROPJET |
Fixed-wing, single engine | November Tango LLC Ketchum, Idaho |
Experimental | 2006-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N9152F | Ayres Corporation S2R-R1340 |
Fixed-wing, single engine | Hatfield Spraying Service INC Nunica, Michigan |
Restricted | 2002-09-12 | ValidFAA registration status code V: Valid registration. All codes |
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 29, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.