The Metro was developed by Swearingen on the basis of the Beech Queen Air as a commuterliner, and first flew as the SA-226TC in August 1969. The Metro II can convert from a high density 20 seat configuration, to an all cargo congiuration in 30 minutes.
SA226-TC Metro II Engines: 2 x Garrett TPE 331 3UW-304G, 840 shp Empty wt: 8150 lb MTOW: 12,500 lb (later 13,100 lb) Pax cap: 20 Cruise: 235 kts @ 15,000 ft, 252 kts @ 10,000 ft Cargo holds: 181 cu.ft Press differential: 7 psi SL cabin alt: 16,000 ft Max op alt: 25,000 ft ROC @ MTOW: 2400 fpm SE ROC: 650 fpm
Engines: Garrett, 940 shp TBO: 2500 hr Max cruise: 283mph Econ cruise: 230 mph Stall: 86 mph Fuel cap: 4342 lb Service ceiling: 27,000 ft SE service ceiling: 14,700 ft ROC: 2400 fpm SE ROC: 650 fpm Min field length: 2050 ft Payload with full fuel: 293 lb Max range: 2110 sm High speed range: 1665 sm Max payload: 4430 lb Range with max payload: 435 sm Pressurisation diff: 7.0 lb. psi Seats: 22 Gross wt: 12500 lb Equipped empty wt: 8219 lb Useful load: 4281 lb
Metro II Engines: 2 x Garrett TPE 331-3UW-303G, 940 hp Seats: 22 Wing loading: 45 lb/sq.ft Pwr loading: 6.65 lb/hp Gross wt: 12,500 lb Operating wt: 7869 lb Equipped useful load: 4500 lb Payload max fuel: 158 lb Zero fuel wt: 12,500 lb Range max fuel/cruise: 1474 nm/5.8 hr Range max fuel / range: 1915 nm/ 7.9 hr Service ceiling: 25,000 ft Max cruise: 255 kt Max range cruise: 244 kt Vmc: 91 kt Stall: 86-98 kt 1.3 Vso: 112 kt ROC: 2400 fpm SE ROC: 650 fpm @ 133 kt SE Service ceiling: 14,000 ft Min field length: 2050 ft Cabin press: 7 psi Fuel cap: 4342 lb