GUILMARTIN, Stephen Wayne· ICAO24 7c5eae· last seen 7d ago

VH-SZK is a Pacific Aerospace Corporation CT-4 Airtrainer, a single-engine piston aircraft operated by GUILMARTIN, Stephen Wayne. SkyMeter has tracked 30 flights totalling 12 hours of airtime via ADS-B. The most frequent segment is YGIS to YMMB. Service window in our records spans 201 days. The Pacific Aerospace Corporation CT-4 Airtrainer has a maximum takeoff weight of 2,650 lb, light wake category.

About the Pacific Aerospace Corporation CT-4 Airtrainer

The Pacific Aerospace CT-4 Airtrainer is a tandem-seat military primary trainer developed in New Zealand during the 1970s as a successor to the Victa Airtourer. Originally designed by Henry Millicer and built by Aero Engine Services Ltd (later New Zealand Aerospace Industries, now Pacific Aerospace), the CT-4 became the standard ab-initio trainer for the Royal New Zealand Air Force and Royal Australian Air Force, with the RNZAF operating the type from 1977 through 2015. The aircraft's rugged all-metal construction, excellent visibility from both cockpits, and benign handling characteristics made it ideal for screening student pilots, while its 210-horsepower Continental IO-360 engine provided enough performance for basic aerobatics and instrument training.

The CT-4 family includes several variants: the original CT-4A, the improved CT-4B with a constant-speed propeller, and the CT-4E with enhanced avionics and structural upgrades. Maximum speed approaches 175 knots, with a service ceiling around 18,000 feet and endurance exceeding four hours, impressive for a primary trainer. The type earned a reputation for reliability in military service, with RAAF examples accumulating tens of thousands of flight hours in the demanding Australian outback training environment. Thailand's Royal Thai Air Force also operated the CT-4, and several examples have found their way onto civilian registers following military retirement.

Today the CT-4 serves primarily in private hands and with flight training organizations, particularly in Australia and New Zealand where parts support remains available. The aircraft's military pedigree, aerobatic capability, and relatively economical operating costs have made it popular with warbird enthusiasts and advanced training schools. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
30
all time
FLOWN HOURS
12
tracked time
📍
AIRPORTS VISITED
7
unique
📡
CALLSIGNS
1
9 routes
📅
SERVICE PERIOD
12/28/2025 → 07/17/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

2
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Pacific Aerospace Corporation CT-4 Airtrainer

Engines
Single Piston
Vref (approach)
70 kt
MTOW
2,650 lb
Wake category
L

Recent flights

Newest 15 operations of VH-SZK

15
07/17/2026
40m
No alerts
06/14/2026
18m
No alerts
06/14/2026
30m
No alerts
05/29/2026
21m
No alerts
05/13/2026
12m
No alerts
05/13/2026
8m
No alerts
04/29/2026
25m
No alerts
04/28/2026
13m
No alerts
04/27/2026
10m
No alerts
03/31/2026
5m
No alerts
03/10/2026
24m
No alerts
03/09/2026
24m
No alerts
02/27/2026
41m
No alerts
01/01/2026
46m
No alerts
12/28/2025
39m
No alerts
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