Austro Engine E4 series
133 aircraft on the U.S. register carry an Austro Engine E4 series engine, rated at about 168 horsepower. The Diamond Aircraft DA 42 Twin Star is the model most often fitted with it (119 aircraft). The aircraft carrying it were built between 2005 and 2026.
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 Austro Engine E4 series. FAA spelling: E4 SERIES.
Fitted to model families
Diamond Aircraft DA 42 Twin Star119Diamond Aircraft DA 40 Diamond Star5Diamond Aircraft DA 625Alexander Schleicher ASH 312Diamond Aircraft DA 52X11Stearman Aircraft C21
Diamond Aircraft DA 42 Twin Star · Diamond Aircraft DA 40 Diamond Star · Diamond Aircraft DA 62 · Alexander Schleicher ASH 31 · Diamond Aircraft DA 52X1 · Stearman Aircraft C2
Where they are owner's state
Florida30California11Arizona9Texas8New York8Indiana8North Carolina7Colorado5Virginia4Oklahoma4
Kind of aircraft
Piston twins125 (94%)Piston singles6 (5%)Gliders2 (2%)
When the aircraft were built by decade
Connections how this engine series links to the rest of the register
Fitted to
- Diamond Aircraft DA 42 Twin Star 119 with this engine series
- Diamond Aircraft DA 40 Diamond Star 5 with this engine series
- Diamond Aircraft DA 62 5 with this engine series
- Alexander Schleicher ASH 31 2 with this engine series
Where they are
- Florida 30 of these aircraft
- California 11 of these aircraft
- Arizona 9 of these aircraft
- Texas 8 of these aircraft
- New York 8 of these aircraft
Biggest operators
- Embry-Riddle Aeronautical University INC 13 of these aircraft
- Embry Riddle Aeronautical University INC 6 of these aircraft
- Westwind School Of Aeronautics Phoenix LLC DBA 5 of these aircraft
- Lift Aircraft LLC 5 of these aircraft
- Skywarrior Flight Training LLC 4 of these aircraft
Analytics
These connections as data: /graph/engine/austro-engine-e4-series.json · about the eFlight graph.
Aircraft newest certificates first · 133
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N422GL | Diamond Aircraft DA 42 |
Electric airplane | Summit Aviation INC Belgrade, Montana |
Standard | 2021-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N822SA | Diamond Aircraft DA 42 |
Electric airplane | Pughs Air West LLC Carlsbad, California |
Standard | 2021-04-12 | ValidFAA registration status code V: Valid registration. All codes |
| N593ER | Diamond Aircraft DA 42 NG |
Electric airplane | Individual owner New Mexico |
Standard | 2021-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N331JS | Alexander Schleicher ASH 31 MI |
Electric glider | Individual owner California |
Experimental | 2021-01-11 | ValidFAA registration status code V: Valid registration. All codes |
| N176TS | Diamond Aircraft DA 42 |
Electric airplane | Old Glory INC Tulsa, Oklahoma |
Standard | 2020-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N44HH | Diamond Aircraft DA 40 NG |
Electric airplane | N44Hh LLC Tuckahoe, New York |
Standard | 2020-08-03 | ValidFAA registration status code V: Valid registration. All codes |
| N442AD | Diamond Aircraft DA 42 NG |
Electric airplane | Yvie Air LLC Newburgh, New York |
Standard | 2020-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N725SA | Diamond Aircraft DA 42 NG |
Electric airplane | Naples Air Center INC Naples, Florida |
Light sport | 2020-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N153TS | Diamond Aircraft DA 42 NG |
Electric airplane | Airplane Holding LLC Huntington Station, New York |
Standard | 2020-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N457TS | Diamond Aircraft DA 42 |
Electric airplane | K2 Aviation LLC Greenwood Village, Colorado |
Standard | 2019-11-22 | ValidFAA registration status code V: Valid registration. All codes |
| N142NG | Diamond Aircraft DA 42 NG |
Electric airplane | Five Star Marketing INC Raleigh, North Carolina |
Standard | 2018-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N417TS | Diamond Aircraft DA 42 |
Electric airplane | Nymoon LLC San Juan Capo, California |
Standard | 2017-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N621ZC | Diamond Aircraft DA 42 NG |
Electric airplane | Summit Aviation INC Belgrade, Montana |
Standard | 2016-12-27 | ValidFAA registration status code V: Valid registration. All codes |
| N3150A | Diamond Aircraft DA 42 NG |
Electric airplane | Oklahoma Aviation LLC Bethany, Oklahoma |
Standard | 2016-11-30 | ValidFAA registration status code V: Valid registration. All codes |
| N305ER | Diamond Aircraft DA 42 NG |
Electric airplane | Embry-Riddle Aeronautical University INC Daytona Beach, Florida |
Standard | 2016-08-18 | ValidFAA registration status code V: Valid registration. All codes |
| N306ER | Diamond Aircraft DA 42 NG |
Electric airplane | Embry-Riddle Aeronautical University INC Daytona Beach, Florida |
Standard | 2016-08-18 | ValidFAA registration status code V: Valid registration. All codes |
| N309ER | Diamond Aircraft DA 42 NG |
Electric airplane | Embry-Riddle Aeronautical University INC Daytona Beach, Florida |
Standard | 2016-08-18 | ValidFAA registration status code V: Valid registration. All codes |
| N311ER | Diamond Aircraft DA 42 NG |
Electric airplane | Embry-Riddle Aeronautical University INC Daytona Beach, Florida |
Standard | 2016-08-18 | ValidFAA registration status code V: Valid registration. All codes |
| N914GM | Diamond Aircraft DA 42 NG |
Electric airplane | Grech Air LLC Riverside, California |
Standard | 2016-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N829TD | Diamond Aircraft DA 42 NG |
Electric airplane | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2016-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N126NG | Diamond Aircraft DA 42 NG |
Electric airplane | Fjr Consulting INC Reno, Nevada |
Standard | 2016-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N56AU | Diamond Aircraft DA42MNG |
Electric airplane | Aurora Flight Sciences CORP Manassas, Virginia |
Standard | 2015-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N620RD | Diamond Aircraft DA 52X1 |
Electric airplane | Northrop Grumman Systems CORP El Segundo, California |
Experimental | 2015-08-27 | ValidFAA registration status code V: Valid registration. All codes |
| N63GH | Diamond Aircraft DA 42 NG |
Electric airplane | Diatus LLC Sebastopol, California |
Standard | 2015-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N236TS | Diamond Aircraft DA 42 |
Electric airplane | Fisher Curtis R Mankato, Minnesota |
Standard | 2014-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N3440 | Stearman Aircraft C2 |
Fixed-wing, single engine | Western Antique Aeroplane & Automobile Museum Hood River, Oregon |
Standard | 2014-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N116NG | Diamond Aircraft DA 40 NG |
Electric airplane | Carolina Garuda Services LLC Wilson, North Carolina |
Standard | 2013-11-07 | ValidFAA registration status code V: Valid registration. All codes |
| N43WF | Diamond Aircraft DA 42 NG |
Electric airplane | Aerospace Trust Management LLC Wilmington, Delaware |
Standard | 2011-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N119AP | Alexander Schleicher ASH 31 MI |
Electric glider | Individual owner Texas |
Experimental | 2011-04-20 | ValidFAA registration status code V: Valid registration. All codes |
| N51AU | Diamond Aircraft DA42MNG |
Electric airplane | Aurora Flight Sciences Manassas, Virginia |
Experimental | 2010-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N49AU | Diamond Aircraft DA42MNG |
Electric airplane | Aurora Flight Sciences Manassas, Virginia |
Experimental | 2010-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N257LA | Diamond Aircraft DA 42 NG |
Electric airplane | Individual owner Tennessee |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N94NG | Diamond Aircraft DA 42 NG |
Electric airplane | Bas Part Sales LLC Greeley, Colorado |
Standard | 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.