· ICAO24 401a61· last seen 8d ago

G-ACSS is a de Havilland DH.88 Comet, a twin-engine piston aircraft. SkyMeter has tracked 12 flights totalling 7 hours of airtime via ADS-B. The most frequent segment is GB-0615 to GB-0615. Service window in our records spans 393 days. The de Havilland DH.88 Comet has a maximum takeoff weight of 5,500 lb, light wake category.

About the de Havilland DH.88 Comet

The de Havilland DH.88 Comet stands as one of aviation's most elegant purpose-built racers, designed specifically to win the 1934 MacRobertson Air Race from England to Australia. Built in secrecy at Hatfield in just nine months, the sleek twin-engine monoplane featured revolutionary streamlining, retractable landing gear, and variable-pitch propellers — technologies that would define the next generation of high-speed aircraft. On October 20, 1934, C.W.A.

Scott and Tom Campbell Black piloted Grosvenor House (G-ACSS) to victory, covering the 11,300 miles to Melbourne in 70 hours 54 minutes at an average speed of 158 mph, shattering existing records and capturing the world's imagination. Only five Comets were ever constructed, each essentially a custom aircraft for its wealthy sponsor. With a maximum speed exceeding 230 knots and a cruise capability around 220 knots, the DH.88 was faster than most contemporary military fighters and represented the absolute cutting edge of 1930s aeronautical engineering.

Its wooden construction, powered by two 230-horsepower de Havilland Gipsy Six R engines, achieved an unprecedented balance of speed, range, and efficiency. Three Comets survive today in museums, with G-ACSS — the actual race winner — preserved at the Shuttleworth Collection in England, where it occasionally performs high-speed taxi runs as a living reminder of aviation's golden age of speed and adventure. SkyMeter has tracked flights across airframes and operators, with routes observed.

FLIGHTS
12
all time
FLOWN HOURS
7
tracked time
📍
AIRPORTS VISITED
3
unique
📡
CALLSIGNS
1
3 routes
📅
SERVICE PERIOD
05/31/2025 → 06/28/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

de Havilland DH.88 Comet

Engines
Twin Piston
Vref (approach)
75 kt
MTOW
5,500 lb
Wake category
L

Recent flights

Newest 6 operations of G-ACSS

6
06/28/2026
27m
No alerts
05/10/2026
34m
No alerts
04/10/2026
48m
No alerts
08/30/2025
22m
No alerts
06/29/2025
32m
No alerts
05/31/2025
31m
No alerts
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