STOCKS AVIATION AND MACHINE INC· ICAO24 ac6853· last seen Dec 2025

N899S is an Evolution Aircraft Evolution Turbine, a single-engine turboprop operated by STOCKS AVIATION AND MACHINE INC. SkyMeter has tracked 46 flights totalling 58 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is 9FD7 to KABY. Service window in our records spans 190 days. Of those flights, 2 (4.3%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Evolution Aircraft Evolution Turbine has a maximum takeoff weight of 6,000 lb, light wake category.

About the Evolution Aircraft Evolution Turbine

The Evolution Aircraft Turbine represents an unusual niche in general aviation: a pressurized, single-engine turboprop available as an experimental amateur-built kit. Designed by Evolution Aircraft Company in Oregon and first flown in the early 2000s, the Evolution combines composite construction with a Pratt & Whitney Canada PT6A turbine engine to deliver jet-like cabin comfort and performance in a package that owners can legally build themselves under FAA experimental rules. The aircraft's pressurized cabin (rare in the kitplane world) allows cruise altitudes up to 28,000 feet, well above most weather and light traffic, while the PT6A provides the reliability and fuel efficiency turboprop operators expect.

With a cruise speed around 300 knots true airspeed and a range exceeding 1,400 nautical miles, the Evolution competes on paper with factory-built turboprops costing several times more, though builders must invest hundreds of hours in construction. The type has attracted a small but dedicated following among affluent owner-pilots seeking turbine performance without the price tag of a certified single like the TBM or Pilatus PC-12. SkyMeter has tracked flights across airframes and operators, with the most frequently observed.

FLIGHTS
46
all time
FLOWN HOURS
58
tracked time
📍
AIRPORTS VISITED
15
unique
📡
CALLSIGNS
2
18 routes
📅
SERVICE PERIOD
6/15/2025 → 12/22/2025
first → last
INCIDENT RATE
4.3%
2 flagged

Top routes

By flight count

4
1
1
1
1

Flight numbers

Most-flown by this airframe

2

Aircraft specifications

Evolution Aircraft Evolution Turbine

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

Recent flights

Newest 23 operations of N899S

23
12/22/2025
4h 27m
No alerts
12/17/2025
1h 43m
No alerts
12/17/2025
1h 43m
No alerts
12/17/2025
1h 38m
No alerts
12/17/2025
1h 38m
No alerts
12/12/2025
37m
No alerts
12/12/2025
37m
No alerts
11/5/2025
32m
No alerts
11/4/2025
26m
No alerts
9/4/2025
1h 47m
No alerts
9/4/2025
1h 33m
No alerts
8/8/2025
43m
No alerts
8/8/2025
45m
No alerts
7/28/2025
2h 38m
No alerts
7/28/2025
40m
△ Low approach-stability score
7/28/2025
18m
No alerts
7/24/2025
1h 18m
No alerts
7/24/2025
2h 47m
No alerts
6/23/2025
59m
No alerts
6/23/2025
2m
No alerts
6/23/2025
45m
No alerts
6/15/2025
49m
No alerts
6/15/2025
38m
No alerts
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