The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 30, 2026

Revmaster 2100D

9 aircraft on the U.S. register carry a Revmaster 2100D engine, rated at about 65 horsepower. The Brad G Marcum THATCHER CX4 is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 2018 and 2025.

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 Revmaster 2100D. FAA spelling: 2100D.

Fitted to model families

Brad G Marcum THATCHER CX41Ian H Roe/Troy A Zawlacki QUICKIE Q-21Kotecki Karl A WAIEX1Luis R Claudio-Rivera KR251Lutz Paul A THATCHER CX41Mullins Nathan K QUANTUM R1Simpson Arthur MONNETT SONERAI IILT1Vanderschrier John SONERAI II L1Williams John J WILLIAMS CX41
Model families, as a table
aircraft
Brad G Marcum THATCHER CX41
Ian H Roe/Troy A Zawlacki QUICKIE Q-21
Kotecki Karl A WAIEX1
Luis R Claudio-Rivera KR251
Lutz Paul A THATCHER CX41
Mullins Nathan K QUANTUM R1
Simpson Arthur MONNETT SONERAI IILT1
Vanderschrier John SONERAI II L1
Williams John J WILLIAMS CX41

Brad G Marcum THATCHER CX4 · Ian H Roe/Troy A Zawlacki QUICKIE Q-2 · Kotecki Karl A WAIEX · Luis R Claudio-Rivera KR25 · Lutz Paul A THATCHER CX4 · Mullins Nathan K QUANTUM R · Simpson Arthur MONNETT SONERAI IILT · Vanderschrier John SONERAI II L · Williams John J WILLIAMS CX4

Kind of aircraft

By kind, as a table
aircraftshare
Piston singles9100%

When the aircraft were built by decade

By decade built, as a table
aircraft
20103
20205

Connections how this engine series links to the rest of the register

Where they are

The whole map of how records connect · these connections as data: /graph/engine/revmaster-2100d.json.

Aircraft newest certificates first · 9

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N422KP Kotecki Karl A
WAIEX
Fixed-wing, single engine Individual owner
Michigan
Experimental 2025-08-17 ValidFAA registration status code V: Valid registration. All codes
N958BM Brad G Marcum
THATCHER CX4
Fixed-wing, single engine Individual owner
South Dakota
Experimental 2024-06-18 ValidFAA registration status code V: Valid registration. All codes
N473AS Simpson Arthur
MONNETT SONERAI IILT
Fixed-wing, single engine Individual owner
Wisconsin
Experimental 2024-02-23 ValidFAA registration status code V: Valid registration. All codes
N21ZR Ian H Roe/Troy A Zawlacki
QUICKIE Q-2
Fixed-wing, single engine Co-owned owner
California
Experimental 2022-03-17 ValidFAA registration status code V: Valid registration. All codes
N323NM Mullins Nathan K
QUANTUM R
Fixed-wing, single engine Individual owner
Texas
Experimental 2021-03-30 ValidFAA registration status code V: Valid registration. All codes
N111SF Williams John J
WILLIAMS CX4
Fixed-wing, single engine Individual owner
Oklahoma
Experimental 2020-12-07 ValidFAA registration status code V: Valid registration. All codes
N979X Vanderschrier John
SONERAI II L
Fixed-wing, single engine Individual owner
Ohio
Experimental 2019-08-13 ValidFAA registration status code V: Valid registration. All codes
N8981S Luis R Claudio-Rivera
KR25
Fixed-wing, single engine Individual owner
Texas
Experimental 2019-07-15 ValidFAA registration status code V: Valid registration. All codes
N234CX Lutz Paul A
THATCHER CX4
Fixed-wing, single engine Individual owner
Ohio
Experimental 2019-01-24 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 30, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.