· ICAO24 49c324· last seen Sep 2025

OK-BUI 78 is a BRM Aero Bristell NG5, a single-engine piston aircraft. SkyMeter has tracked 276 flights totalling 196 hours of airtime via ADS-B. The most frequent segment is LKLT to LKLT. Service window in our records spans 98 days. Of those flights, 40 (14.5%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The BRM Aero Bristell NG5 has a maximum takeoff weight of 1,320 lb.

About the BRM Aero Bristell NG5

The Northrop Grumman RQ-4 Global Hawk is the world's premier high-altitude, long-endurance unmanned reconnaissance aircraft, capable of surveying vast swaths of territory from altitudes above 60,000 feet for more than 30 hours without refueling. Introduced into U.S. Air Force service in 2001, the Global Hawk was designed to replace the U-2 Dragon Lady in the strategic surveillance role, offering persistent intelligence, surveillance, and reconnaissance (ISR) coverage without risking aircrew.

Its operational ceiling exceeds that of nearly all other production aircraft, and its 130-foot wingspan (greater than a Boeing 737's) enables efficient cruise at extreme altitude where the air is thin and threats are minimal. Powered by a single Rolls-Royce AE3007H turbofan, the Global Hawk can transit to a theater thousands of miles away, loiter over the area of interest for an entire day, and return to base autonomously. The aircraft carries advanced synthetic aperture radar, electro-optical, and infrared sensors that can image targets in any weather, day or night, transmitting real-time data via satellite link to ground stations worldwide.

Variants include the RQ-4A Block 10/20, the larger Block 30 with enhanced sensors, and the U.S. Navy's MQ-4C Triton optimized for maritime patrol. The Global Hawk has flown operational missions over Afghanistan, Iraq, Libya, and the Pacific, logging tens of thousands of combat hours.

Its combination of endurance, altitude, and sensor payload remains unmatched among operational unmanned systems. SkyMeter has tracked flights across airframes and operators over routes, with the largest observed operator.

FLIGHTS
276
all time
FLOWN HOURS
196
tracked time
📍
AIRPORTS VISITED
32
unique
📡
CALLSIGNS
1
40 routes
📅
SERVICE PERIOD
05/30/2025 → 09/06/2025
first → last
INCIDENT RATE
14.5%
40 flagged

Top routes

By flight count

10
59
19
4
2
2
2
2

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

BRM Aero Bristell NG5

Engines
Single Piston
Vref (approach)
50 kt
MTOW
1,320 lb
Wake category
Light

Recent flights

Newest 50 operations of OK-BUI 78

50
09/06/2025
20m
No alerts
09/06/2025
26m
△ Low approach-stability score
09/06/2025
1h 5m
No alerts
09/06/2025
18m
No alerts
09/03/2025
52m
No alerts
09/01/2025
55m
No alerts
09/01/2025
1h 11m
△ Low approach-stability score
09/01/2025
21m
△ Low approach-stability score
09/01/2025
24m
No alerts
08/31/2025
1h 22m
No alerts
08/28/2025
1h 12m
△ Low approach-stability score
08/28/2025
1h 13m
No alerts
08/26/2025
18m
No alerts
08/26/2025
57m
No alerts
08/25/2025
21m
No alerts
08/24/2025
43m
No alerts
08/23/2025
1h 12m
No alerts
08/22/2025
52m
No alerts
08/20/2025
17m
No alerts
08/20/2025
39m
No alerts
08/18/2025
26m
No alerts
08/18/2025
38m
No alerts
08/18/2025
1h 2m
No alerts
08/18/2025
1h 6m
No alerts
08/17/2025
1h 3m
△ Low approach-stability score
08/17/2025
54m
No alerts
08/15/2025
21m
No alerts
08/15/2025
1h 18m
No alerts
08/10/2025
1h 5m
No alerts
08/09/2025
58m
No alerts
08/08/2025
22m
No alerts
08/07/2025
58m
No alerts
08/06/2025
1h 5m
△ Low approach-stability score
08/05/2025
45m
No alerts
08/04/2025
22m
No alerts
08/04/2025
53m
No alerts
08/03/2025
55m
No alerts
08/03/2025
17m
No alerts
08/03/2025
27m
No alerts
08/03/2025
10m
No alerts
08/03/2025
21m
No alerts
08/02/2025
50m
△ Low approach-stability score
08/02/2025
25m
No alerts
08/02/2025
1h 47m
No alerts
08/01/2025
50m
No alerts
07/31/2025
48m
No alerts
07/30/2025
1h 16m
No alerts
07/29/2025
45m
No alerts
07/29/2025
1h 8m
△ Low approach-stability score
07/29/2025
49m
No alerts
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