Beechcraft King Air C90B and C90SE (Model C90A type design)

King Air C90B N930MQ landing at Las Vegas, photographed by Duncan Kirk. · DUNCAN KIRK · CC BY 4.0 (https://creativecommons.org/licenses/by/4.0) · resized

Beechcraft · Turboprop

King Air C90B / C90SE

Built 1992–2005Out of production1 pilot

Fifth major version of the King Air 90 line, after the C90A and before the faster C90GT.

70JetGrade70 = typical for turboprops

The C90B is the easiest way into a King Air: a forgiving twin with a comfortable, quiet cabin and strong support. It is slow and short-legged for the money, so asks from $1.3M to $3.1M depend mostly on engines and cockpit upgrades.

Buy it if

You want two engines and a real club cabin for trips of 200 to 700 nm with up to five passengers, often into shorter runways, and value proven support over speed.

Skip it if

You routinely fly more than about 900 nm with four aboard, need to fill every seat and the tanks together, or want jet-like speed for your budget.

Biggest compromise

Payload with full tanks. The tanks hold 384 gallons, and with them full a standard C90B carries only about 350 lb after the pilot.

The numbers that matter

Purchase price

$2.52M

typical asking · $1.29M–$3.1M

What it costs per year

$605K

at 300 hrs · one professional pilot

How far it flies

1,049 nm

640–926 nm with passengers

How fast

246 kt

high-speed cruise

Seats

6

6 typical; up to 12 high-density

Pilots needed

1

Certified for one pilot; many are owner-flown, and insurers expect formal initial and yearly training.

Price

What one costs to buy

Typical asking price

$2,525,000

Where asking prices sit

Low

$1.29M

Typical

$2.52M

High

$3.1M

Most asking prices fall inside this band.

Other sites

14 observed on other sites

Priced vs call

6 / 8

with a price / call for price

Six of 14 listings show asks. Aircraft with engine upgrades and Garmin cockpits ask $2.75M–$3.1M; published guides put typical value at $1.42M–$1.78M.

Price vs its family and alternatives

Scroll to explore · select a jet for details

King Air B90King Air 90 / A90 (1964–1968)King Air C90King Air C90AKing Air C90GTKing Air C90B / C90SEKing Air C90GTiPC-12/45King Air C90GTx$0$850K$1.7M$3.23M

King Air C90B / C90SE · This aircraft

$2.52M

Sits between the King Air C90GT and the King Air C90GTi.

For sale now

None listed right now

Cost to own

What it costs per year to run

300hours / year

Per year

$605,318

Per flight hour

$2,018

Estimate — your operator will quote actual numbers.

Fuel, airframe maintenance, engine overhaul reserve and propeller reserve and trip costs rise as you fly more. One professional pilot, recurrent training, hangar, insurance and subscriptions and databases stay the same however much you fly.

Where the money goes

$605Kper year$2,018/hr
  • One professional pilot$109,19018%
  • Recurrent training$7,9501%
  • Hangar$25,0004%
  • Insurance$20,8003%
  • Subscriptions and databases$8,2501%
  • Fuel$197,62833%
  • Airframe maintenance$142,50024%
  • Engine overhaul reserve$76,50013%
  • Propeller reserve and trip costs$17,5003%

Fuel is the biggest single cost at 33% of the total.

The JetGrade

70 out of 100 — Typical for its class

Peer group: King Air C90A, King Air E90, Piper Cheyenne IIXL, Cessna Conquest I (425), Pilatus PC-12/45

Seven categories at a glance

- - - 70 = typical— This aircraft

Strongest on reliability & support, weakest on speed & trip time.

Grades are editorial opinions about the model, not any specific aircraft. Sponsors and affiliates have no input. Reviewed 2026-10-04.

Where it flies

Sample trips and reach

Typical trips on a map

Nonstop

Depends on weight or weather

Fuel stop likely

2 of 6 sample trips are comfortable nonstops.

Sample flight times

  • Carlsbad → Las Vegas

    205 nm · Short hop, well within range

    1.2 hr
  • Carlsbad → Aspen

    625 nm · Mountain airport; summer departures may need less weight

    3.2 hr
  • Santa Ana → San José del Cabo

    765 nm · Nonstop with four at economy cruise

    3.8 hr
  • Teterboro → West Palm Beach

    900 nm · Near the four-passenger limit; winds decide

    5.0 hr
  • Dallas → Teterboro

    1,190 nm · One stop with four aboard

    5.6 hr
  • Carlsbad → Teterboro

    2,100 nm · Two stops, typically mid-continent

    10.5 hr

Lineage

What came before and after

What changed from the King Air C90A

  • Four-blade propellers replace three-blade units, lowering engine-out control speed to 80 kt.
  • 26 tuned vibration absorbers and new insulation cut cabin noise about 4 dB on average.
  • Interior restyled to King Air 350 standard, with about 6 in more club legroom.
  • Collins two-tube electronic flight displays and autopilot standard from the 1993 model year.
  • Flap preselect and a ground-fine propeller setting for shorter landing rolls.
  • Weights and fuel unchanged; empty weight rose about 36 lb.

Size and cabin

How big it is, inside and out

Outside

Silhouette · scaled to length

5′ 11″Car 14′ 9″Length 35′ 6″Wingspan 50′ 3″Height 14′ 3″

Length

35′ 6″

Wingspan

50′ 3″

Height

14′ 3″
2.3×the length of a midsize car
1.4×the width of a tennis court, wingtip to wingtip
1.4×a one-story ceiling, ground to tail tip

Inside the cabin

6 seatsPlan · schematic
◀ FRONTRefresh.Lav · belted seatBaggageLength 12′ 8″4′ 6″

Cabin length

12′ 8″

Width

4′ 6″

Height

4′ 10″
Stoopa 6 ft adult ducks about 1′ 2″
4′ 3″of cabin per seat row
LayoutRefreshment cabinet behind the cockpit, four club seats, a side-facing seat, a belted toilet seat at the back, then baggage.
6 seats typicalBaggage 48.3 cu ft · 350 lbBelted seat lavatoryRefreshment centerCabin altitude ~12,000 ft

Compare

How it stacks up

This aircraft

King Air C90B / C90SE

JetGrade
70
Price
$2.52M
Cost per year
$605K
Range
1,049 nm
Speed
246 kt
Seats
6
Cabin length
12′ 8″
Pilots
1
Years built
1992–2005

← Before

King Air C90A

JetGrade
71
Price
$1.42M
Cost per year
$550K
Range
1,120 nm
Speed
247 kt
Seats
6
Cabin length
12′ 4″
Pilots
1
Years built
1984–1992

After →

King Air C90GT

JetGrade
64
Price
$2.13M–$2.38M guide
Cost per year
$721K
Range
981 nm
Speed
271 kt
Seats
5
Cabin length
12′ 6″
Pilots
1
Years built
2006–2008

Alternative

PC-12/45

JetGrade
77
Price
$2.9M
Cost per year
$515K
Range
1,500 nm
Speed
265 kt
Seats
6
Cabin length
16′ 11″
Pilots
1
Years built
1996–2005
  • King Air C90GT instead: Same cabin with PT6A-135A engines that hold power higher and add about 25 kt; fewer were built, so asks run higher.
  • Pilatus PC-12/45 instead: One engine instead of two, but a bigger cabin, a cargo door, about 270 kt and far more range with passengers aboard.
  • King Air C90A instead: Same engines, weights and cabin layout for less money; louder, with three-blade propellers and older interiors.

Gold marks the best figure in each row.

Owning one

What to know before you buy

Engines & inspections

2 × Pratt & Whitney Canada PT6A-21 · 550 shp each

No APU

Engine hours until overhaul

0 hr3,600 hr overhaul
  • Phase inspection · 200 hr
  • Engine fuel nozzle check · 400 hr
  • Starter-generator overhaul · 1,000 hr
  • Engine hot section inspection · 1,800 hr
  • Engine overhaul · 3,600 hr
  • Propeller overhaul · 4,000 hr
  • Landing gear six-year inspection every 72 months
  • Wing attach bolt replacement every 240 months

Several aircraft for sale use an extended-overhaul program allowing up to 8,000 hours. Most owners set money aside each hour; price both engines into any offer.

Known issues

  • Two-engine overhaul exposure

    Each PT6A-21 costs $319,000 to $404,000 to overhaul at the 2026 factory flat rate, due every 3,600 hours.

  • Wing bolts and spar records

    Wing attach bolts have mandatory replacement times and regular checks; any non-factory spar repair is a serious red flag.

  • Nacelle corrosion

    Corrosion under nacelle fuel-tank cover panels and at nacelle splice plates is a known finding on older King Airs.

Pre-buy checklist

0 of 10 checked

Textron Aviation and a large network of independent King Air shops support the C90B, and Pratt & Whitney offers flat-rate overhauls and exchange engines for the PT6A-21.

Review

The full review

Strengths

  • Cabin is 4 ft 10 in tall and 4 ft 6 in wide, with a four-seat club, side seat and belted toilet.
  • Clears a 50 ft obstacle in 2,710 ft at full weight and stops in 2,290 ft without reverse.
  • Two Pratt & Whitney PT6A-21 engines and 433 C90Bs built mean deep parts and shop support.

Limitations

  • Tops out near 246 kt and cruises 196 kt for best range, slower than most rivals.
  • About 350 lb of payload after the pilot with full tanks; four passengers trade fuel for weight.
  • Two engines to overhaul: the factory flat rate is $319,000 to $404,000 each in 2026.

The King Air C90B is the 1992–2005 version of Beechcraft's smallest King Air, the twin turboprop that has been the usual first step into turbine twins since the 1960s. It kept the C90A's airframe, fuel and two 550 shp Pratt & Whitney PT6A-21 engines, but swapped three-blade propellers for four-blade units and added 26 tuned vibration absorbers and new insulation to quiet the cabin. Beechcraft built 433 C90Bs, plus 14 of a cheaper C90SE with older-style instruments and three-blade propellers. The C90GT, with stronger engines, replaced both in 2006.

Pilot's take

The C90B is a gentle airplane to fly and land, with heavy but steady controls and a cockpit where switches fall naturally to hand. Autofeather and rudder boost help if an engine quits, and the four-blade propellers lower the minimum control speed to 80 kt. The PT6A-21 engines lose power as you climb, so the airplane feels strong at low altitude and slow up high. Pilots new to turbines should treat the first 100 to 150 hours as training, and plan the fuel and payload trade on every full-cabin trip.

— TheJetGrade editorial

Who this is for

An owner-pilot stepping up from a piston twin, or a business flying regional trips with one hired pilot, who wants a forgiving twin, a stand-out cabin for its size and a budget near $500,000–$700,000 a year.

Ask about this aircraft

Answers come only from our research file on the King Air C90B / C90SE.

Your earlier questions

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