NILSEN CHRISTOPHER· ICAO24 a34f44· last seen 2d ago

N312LL is a Thorp T-18, a single-engine piston aircraft operated by NILSEN CHRISTOPHER. SkyMeter has tracked 180 flights totalling 139 hours of airtime via ADS-B. The most frequent segment is KOAK to KLVK. Service window in our records spans 436 days. Of those flights, 8 (4.4%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Thorp T-18 has a maximum takeoff weight of 1,500 lb, light wake category.

About the Thorp T-18

The Thorp T-18 is a two-seat, all-metal homebuilt aircraft designed by John Thorp in the 1960s and remains one of the most successful amateur-built designs in aviation history. Thorp, a Lockheed engineer who worked on the P-38 Lightning and Constellation, applied professional aerodynamic principles to create a compact, high-performance sport plane that could be built in a home workshop. The T-18's clean lines and efficient wing deliver cruise speeds around 150-180 knots on modest 150-180 horsepower engines, performance rivaling factory-built aircraft costing far more.

The design's hallmark is its all-metal construction using simple hand tools and techniques accessible to first-time builders, with plans still available today through the Thorp Aircraft company. Over a thousand T-18s have been completed since the 1960s, with the type earning a reputation for honest handling, aerobatic capability, and exceptional fuel efficiency. The aircraft's low wing and tandem seating give it a fighter-like appearance, and many builders customize their T-18s with different engines, avionics, and paint schemes.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
180
all time
FLOWN HOURS
139
tracked time
📍
AIRPORTS VISITED
21
unique
📡
CALLSIGNS
1
36 routes
📅
SERVICE PERIOD
06/08/2025 → 08/19/2026
first → last
INCIDENT RATE
4.4%
8 flagged

Top routes

By flight count

10
16
13
8
7
5
2
2
2
2

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Thorp T-18

Engines
Single Piston
Vref (approach)
70 kt
MTOW
1,500 lb
Wake category
L

Recent flights

Newest 50 operations of N312LL

50
08/19/2026
8m
No alerts
08/19/2026
8m
No alerts
07/29/2026
15m
No alerts
07/29/2026
11m
No alerts
07/12/2026
2h 17m
No alerts
07/12/2026
33m
No alerts
07/10/2026
29m
No alerts
07/10/2026
2h 12m
△ Low approach-stability score
07/05/2026
2h 2m
No alerts
07/03/2026
1h 58m
△ Low approach-stability score
07/03/2026
27m
No alerts
06/20/2026
2h 2m
No alerts
06/17/2026
2h 12m
No alerts
06/14/2026
9m
No alerts
06/14/2026
1h 59m
No alerts
06/13/2026
2h 8m
No alerts
06/07/2026
8m
No alerts
06/07/2026
9m
No alerts
05/25/2026
12m
No alerts
05/25/2026
37m
No alerts
05/25/2026
36m
No alerts
05/25/2026
15m
No alerts
05/09/2026
2h 40m
No alerts
05/09/2026
2h 42m
No alerts
05/03/2026
1h 56m
No alerts
05/03/2026
1h 56m
No alerts
05/01/2026
2h 8m
No alerts
05/01/2026
2h 8m
No alerts
04/28/2026
12m
No alerts
04/28/2026
12m
No alerts
04/18/2026
9m
No alerts
04/17/2026
7m
No alerts
04/03/2026
18m
No alerts
04/03/2026
23m
No alerts
03/29/2026
2h 13m
No alerts
03/28/2026
2h 13m
No alerts
03/22/2026
2h 4m
No alerts
03/21/2026
1h 10m
No alerts
03/14/2026
8m
No alerts
03/14/2026
46m
No alerts
03/14/2026
19m
No alerts
03/08/2026
10m
No alerts
03/07/2026
9m
No alerts
02/26/2026
16m
No alerts
01/26/2026
8m
No alerts
01/25/2026
30m
No alerts
01/25/2026
21m
No alerts
01/25/2026
8m
No alerts
01/11/2026
10m
No alerts
01/10/2026
41m
No alerts
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