Beechcraft King Air C90B vs Cessna Conquest I
Live Market Snapshot
Current asking-price market, aggregated across multiple marketplaces · refreshed daily
Beechcraft King Air C90B
- For sale now
- 19
- Median asking
- $1,424,500
- Range
- $1,065,000–$2,500,000
- Model years available
- 1993–2005
Cessna Conquest I
- For sale now
- 13
- Median asking
- $1,162,500
- Range
- $867,150–$2,135,000
- Model years available
- 1978–1985
Live data from AeroGurus, aggregated daily across the used-aircraft market. Figures are current asking prices, not appraisals — confirm with a pre-buy inspection.
Full Specs Comparison
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| Spec / Model | Beechcraft King Air C90B | Cessna Conquest I |
|---|---|---|
|
|
|
| Price Range | $1,065,000 – $2,500,000 | $867,150 – $2,135,000 |
| Category | Multi Engine Turboprop | Multi Engine Turboprop |
| Model Specifications | ||
| Seats | 10 | 8 |
| Horsepower | 550 HP | 450 HP |
| Cruise Speed | 234 kts (433 km/h) | 283 kts (524 km/h) |
| Range | 1,207 nm (2,235 km) | 1,500 nm (2,778 km) |
| Service Ceiling | 30,000 ft (9,144 m) | 30,000 ft (9,144 m) |
| Max Gross Weight | 10,100 lbs (4,581 kg) | 8,600 lbs (3,901 kg) |
| Useful Load | 2,700 lbs (1,225 kg) | 3,000 lbs (1,361 kg) |
| Fuel Capacity | 384.0 gal (1453 L) | 182.0 gal (689 L) |
| Fuel Burn | 68.0 GPH (257 L/h) | 70.0 GPH (265 L/h) |
| TBO | 3,600 hrs | 3,500 hrs |
| Overhaul Cost | $300,000 | $200,000 |
| Annual Fixed | $150,000 | $55,000 |
| Hourly Variable | $900 | $650 |
| Engines | 2 x Turboprop | 2 x Turboprop |
Cost of Ownership
EstimateBeechcraft King Air C90B
Fuel$374/hr
Variable$900/hr
Annual Fixed$150,000/yr
Total (200 hrs/yr)
$330,000/yr
Cessna Conquest I
Fuel$385/hr
Variable$650/hr
Annual Fixed$55,000/yr
Total (200 hrs/yr)
$185,000/yr
Which Should You Buy: Beechcraft King Air C90B or Cessna Conquest I?
Pick the King Air C90B if…
- More seats — 10 vs 8.
- Newer design — production from 1992 vs 1980.
- More inventory — 17 listings vs 14.
Pick the Conquest I if…
- Budget matters — from $867,150 vs $1,065,000, you save ~$197,850.
- Lower operating cost — ~$650/hr vs $900/hr.
- Faster cruise — 283 kts vs 234 kts.
- Longer range — 1500 nm vs 1207 nm.
Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.
Frequently Asked Questions
Which is better, Beechcraft King Air C90B or Cessna Conquest I?
It depends on your mission and budget.
The King Air C90B cruises at 234 kts with 1,207 nm range.
The Conquest I cruises at 283 kts with 1,500 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Beechcraft King Air C90B: from $1,850,000.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Beechcraft King Air C90B and Cessna Conquest I?
Conquest I engine: PRATT & WHITNEY PT6A-112 (450 hp).
Seats: 10 vs 8.
Cruise: 234 vs 283 kts.
Range: 1207 vs 1500 nm.
Which is cheaper to operate per hour?
King Air C90B: about $900/hr variable cost.
Conquest I: about $650/hr variable cost.
Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
King Air C90B: 10 seats / 2,700 lb useful load.
Conquest I: 8 seats / 3,000 lb useful load.
Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
King Air C90B: 3,600-hour TBO, overhaul ~$300,000.
Conquest I: 3,500-hour TBO, overhaul ~$200,000.
Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data