SINGHE KIMAL· ICAO24 a81b95· last seen Jul 2026

N621SS is an Evolution Aircraft Turbine Evolution, a single-engine turboprop operated by SINGHE KIMAL. SkyMeter has tracked 104 flights totalling 187 hours of airtime via ADS-B. The most frequent segment is KFFZ to KCMA. Service window in our records spans 386 days. Of those flights, 4 (3.8%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Evolution Aircraft Turbine Evolution has a maximum takeoff weight of 6,000 lb, light wake category.

About the Evolution Aircraft Turbine Evolution

The Evolution Turbine is a pressurized single-engine turboprop that occupies a rare niche in general aviation: a high-performance kit aircraft capable of flight levels typically reserved for certified twins and light jets. Built by Evolution Aircraft of Bend, Oregon, the type first flew in 2008 and entered the experimental amateur-built market as one of the few turbine-powered homebuilts offering full pressurization and known-ice capability. Powered by a Pratt & Whitney Canada PT6A-135A producing 750 shaft horsepower, the Evolution cruises at 300 knots true airspeed and climbs directly to FL280, where it can maintain cabin altitudes below 8,000 feet.

The composite airframe seats five in a spacious cabin and offers a range exceeding 1,200 nautical miles, making it a genuine cross-country machine that competes on speed and altitude with factory-built turboprops costing several times more. Its kit construction allows owners to build under FAA experimental rules, significantly reducing acquisition costs while delivering near-certified performance. The type has found favor with owner-pilots seeking turbine efficiency without the operating costs of a King Air or TBM, and its ramp presence (sleek, low-wing, and unmistakably fast) reflects its mission as a serious traveling aircraft.

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

✈
FLIGHTS
104
all time
⏱
FLOWN HOURS
187
tracked time
📍
AIRPORTS VISITED
17
unique
📡
CALLSIGNS
1
34 routes
📅
SERVICE PERIOD
6/22/2025 → 7/14/2026
first → last
⚠
INCIDENT RATE
3.8%
4 flagged

Top routes

By flight count

10
5
4
3
3
2
2
2
2
2
2

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Evolution Aircraft Turbine Evolution

Engines
Single Turboprop
Vref (approach)
85 kt
MTOW
6,000 lb
Wake category
L

Recent flights

Newest 50 operations of N621SS

50
7/14/2026
2h 39m
No alerts
7/9/2026
4h 52m
No alerts
7/8/2026
17m
△ Low approach-stability score
5/15/2026
4h 39m
No alerts
4/25/2026
1h 55m
No alerts
4/20/2026
1h 39m
No alerts
4/10/2026
1h 52m
No alerts
4/10/2026
39m
No alerts
4/9/2026
2h 57m
No alerts
4/9/2026
3h 45m
No alerts
4/9/2026
4h 47m
No alerts
3/28/2026
1h 7m
No alerts
3/26/2026
3h 55m
No alerts
3/26/2026
40m
No alerts
3/26/2026
4h 36m
No alerts
3/20/2026
37m
No alerts
3/19/2026
1h 25m
No alerts
3/19/2026
26m
No alerts
3/16/2026
1h 16m
No alerts
3/2/2026
1h 53m
No alerts
3/2/2026
1h 53m
No alerts
3/2/2026
1h 4m
No alerts
3/1/2026
2h 32m
No alerts
2/22/2026
54m
No alerts
2/17/2026
1h 9m
No alerts
2/17/2026
1h 9m
No alerts
2/15/2026
4h 17m
No alerts
2/15/2026
4h 17m
No alerts
1/30/2026
48m
No alerts
1/30/2026
48m
No alerts
1/16/2026
22m
No alerts
1/16/2026
22m
No alerts
1/15/2026
1h 48m
No alerts
1/15/2026
1h 48m
No alerts
1/15/2026
3h 19m
No alerts
1/15/2026
2h 28m
No alerts
1/15/2026
2h 28m
No alerts
12/27/2025
38m
No alerts
12/27/2025
38m
No alerts
12/27/2025
29m
No alerts
10/31/2025
1h 40m
No alerts
10/31/2025
46m
No alerts
10/30/2025
2h 43m
No alerts
10/30/2025
2h 43m
No alerts
10/30/2025
3h 46m
No alerts
10/23/2025
2h 40m
No alerts
10/23/2025
35m
No alerts
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