A/C Manufacturer Fairchild   Fairchild   Sources:
Aircraft type Merlin   Metro   [1] https://www.flightglobal.com/download?ac=73559
Total number of operating A/C 220* [1] 220* [1] [2] https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/04677d0ca024534c86257ee50053d2a0/$FILE/A5SW_Rev_29.pdf
Option/Variant SA227-T   SA226-TC   [3] TAYLOR, John W.R., 1974. Jane's All The World's Aircraft 1974–75. New York, USA.
Engine No. of Engines 2 [2] 2 [4] [4] https://man.fas.org/dod-101/sys/ac/docs/a8sw.pdf
Model 331-3U-303G [2] 331-3UW-303G [4] Comments:
Max. Rated Takeoff Thrust, T_TO [kN] -   -   *Number of operating aircrafts includes all variants of the aircraft type
Equivalent Power, P [kW] 618 [2] 701 [4] ¹ No further details
Propeller HC-B3TN-5( )/T1028HDB-4R [2] HC-B3TN-5( )/T10282HB [4] ² With reserves
Cabin Length, l_CABIN [m] 3,25 [3] 7,75 [3]
Max. Height, h_CABIN [m] 1,5 [3] 1,45 [3]
Max. Width, d_F,I [m] 1,57 [3] 1,57 [3]
Passenger Compartment Volume, V_CABIN [m³] N/A   13,11 [3]
Fuselage Height, h_F [m] N/A   N/A  
Width, w_F [m] N/A   N/A  
Total Length, l_A/C [m] 12,85 [3] 18,09 [3]
Span, b_W [m] 14,1 [3] 14,1 [3]
Height, h_A/C [m] 5,08 [3] 5,08 [3]
Landing Gear Track, l_T [m] 4,57 [3] 4,57 [3]
Wheelbase, l_WB [m] 3,38 [3] 5,83 [3]
Wing Area, S_W [m²] 25,78 [3] 25,78 [3]
Taper ratio, λ_W 0,40 [3] 0,40 [3]
1/4 Chord Sweep, φ_25,W [°] 0,9 [3] 0,9 [3]
Vertical Tail Area, S_V [m²] N/A [3] N/A [3]
Height, b_V [m] 2,93 [3] 2,93 [3]
Taper ratio, λ_V 0,27 [3] 0,27 [3]
1/4 Chord Sweep, φ_25,V [°] 26 [3] 26 [3]
Horizontal Tail Area, S_H [m²] N/A [3] N/A [3]
Span, b_H [m] 4,48 [3] 4,48 [3]
Taper Ratio, λ_H 0,47 [3] 0,47 [3]
1/4 Chord Sweep, φ_25,H [°] 36,5 [3] 36,5 [3]
Cruise V_MO [kt] 380 [2] 308 [4]
M_MO [Mach] 0,63 [2] 0,5 [4]
Cruise Speed, M_CR [Mach] 0,45 [3] 0,4 [3]
Max. Certified Flight Level, h_MCR [FL] 310 [2] 310 [4]
Cruise Altitude, h_CR [FL] 260 [3] 200 [4]
Fuel Unusable Fuel [l] 102 [2] N/A  
Optional Fuel [l] -   -  
Max usable fuel [l] 2468 [2] 2452 [4]
Range Max. Payload, R_MPL [nm] N/A   N/A  
Max. Pax, R_M,pax [nm] 1938 ¹[3] N/A  
Max. Range, R_PLMR [nm] N/A   87 ²[3]
Mass Max. Ramp, m_MR (MRM) [kg] 5697 [2] 5697 [3]
Max. Take-Off, m_MTO (MTOM) [kg] 5670 [2] 5670 [3]
Max. Landing, m_ML (MLM) [kg] 5217 [2] 5670 [3]
Max. Zero Fuel, m_MZF (MZFM) [kg] 4535 [2] 5670 [3]
Operating Empty, m_OE (OEM) (MZFM-MPL) [kg] 3356 [3] 3345 [3]
Max. Payload, m_MPL (MPL) [kg] 1179 [3] 2325 [3]
Payload at Max. Range, m_PLMR [kg] N/A   1778 [3]
Cargo Volume, V_CARGO [m³] 2,41 [3] 5,13 [3]
Cargo Capacity -   -  
Max. Pallet Underfloor -   -  
Seats Max. Seats, n_M,SEAT 11 [2] 22 [4]
Std. Layout, n_SEAT 6 [3] 19 [3]