N88MR - Milligan Ralph D Thorp T-18 Aircraft Registration

MILLIGAN RALPH D THORP T-18

Aircraft Description

N88MR is a Milligan Ralph D THORP T-18, a single-engine reciprocating (piston) aircraft registered to Sale Reported in Oconomowoc, WI. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on September 17, 1988. Powered by a Lycoming 0-320 SERIES engine producing 180 horsepower, N88MR is. The aircraft's Mode S transponder code is AC1C9F (hex), used for ADS-B identification and flight tracking. N88MR was last tracked by AviatorDB near Waukesha County Airport (KUES) on June 26, 2026. The FAA registry record for N88MR was last updated on August 25, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

Milligan Ralph D is an aircraft manufacturer with aircraft registered in the FAA database tracked by AviatorDB. AviatorDB tracks 1 Milligan Ralph D aircraft currently registered in the FAA database, including the THORP T-18 model.

AviatorDB has found no NTSB accident or incident reports involving N88MR. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
Manufacturer
MILLIGAN RALPH D
Model
THORP T-18
Type Aircraft
Fixed Wing Single Engine
Weight Class
Up to 12,500 lbs
Airworthiness Date
September 17, 1988
Classification
Experimental 2 Category
Type Registration
Individual
Status
18
Cert Issue Date

Registered Owner

Name
SALE REPORTED
Address
W349S2170 WATERVILLE RD
City
OCONOMOWOC
State / Zip Code
Wisconsin53066-9464
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
LYCOMING
Engine Model
0-320 SERIES
Horsepower
180 HP
Mode S Code (Oct)
53016237
Mode S Code (Hex)
AC1C9F

Additional Details

Registration
N88MR
Serial Number
814
Number of Engines
1
Number of Seats
2
Expiration Date
Last Action Date
August 25, 2025
Last Update Date
January 19, 2026
Unique ID
00894011

Last Known Position

Date
June 29, 2026 (UTC 17:05:50)
Airport
Latitude
43.006119
Longitude
-88.471815

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-06-15 01:32:20 UTC