HAY MOUNTIAN AVIATION LLC· ICAO24 a9b7fc· last seen Jul 2026

N725VB is an Evolution Aircraft Turbine Evolution, a single-engine turboprop operated by HAY MOUNTIAN AVIATION LLC. SkyMeter has tracked 120 flights totalling 99 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is KBDN to KBDN. Service window in our records spans 301 days. Of those flights, 32 (26.7%) 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
120
all time
FLOWN HOURS
99
tracked time
📍
AIRPORTS VISITED
9
unique
📡
CALLSIGNS
2
12 routes
📅
SERVICE PERIOD
9/8/2025 → 7/7/2026
first → last
INCIDENT RATE
26.7%
32 flagged

Top routes

By flight count

8
45
2
1
1
1
1
1
1

Flight numbers

Most-flown by this airframe

2

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 N725VB

50
4/17/2026
3h 14m
No alerts
4/17/2026
2h 4m
No alerts
4/17/2026
6h 12m
No alerts
4/1/2026
2h 27m
No alerts
3/28/2026
3h 38m
No alerts
3/3/2026
1h 7m
No alerts
3/3/2026
16m
No alerts
3/2/2026
1h 7m
No alerts
2/28/2026
17m
No alerts
2/27/2026
41m
No alerts
2/20/2026
37m
△ Low approach-stability score
2/20/2026
37m
△ Low approach-stability score
2/20/2026
6m
△ Low approach-stability score
2/20/2026
6m
△ Low approach-stability score
2/10/2026
40m
No alerts
2/10/2026
40m
No alerts
2/6/2026
30m
No alerts
2/6/2026
30m
No alerts
1/30/2026
1h 19m
△ Low approach-stability score
1/30/2026
1h 19m
△ Low approach-stability score
1/26/2026
29m
△ Low approach-stability score
1/24/2026
54m
△ Low approach-stability score
1/24/2026
54m
△ Low approach-stability score
1/7/2026
24m
△ Low approach-stability score
1/7/2026
24m
△ Low approach-stability score
1/7/2026
24m
△ Low approach-stability score
12/29/2025
45m
No alerts
12/29/2025
45m
No alerts
11/13/2025
6m
△ Low approach-stability score
11/11/2025
1h 4m
No alerts
11/11/2025
39m
No alerts
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