A/C Manufacturer Beechcraft   Beechcraft   Beechcraft   Sources:
Aircraft type 99   1900C   1900D   [1] https://www.flightglobal.com/download?ac=73559
Total number of operating A/C 107 [1] 121 [1] 220 [1] [2] https://rgl.faa.gov/regulatory_and_guidance_Library/rgMakeModel.nsf/0/c0a846816b9bfac386257385005c5f33/$FILE/A14ce.pdf
Option/Variant C99 [2] -   -   [3] http://www.flugzeuginfo.net/acdata_php/acdata_beech_99_en.php
Engine No. of Engines 2 [2] 2 [4] 2   [4] https://rgl.faa.gov/Regulatory_and_Guidance_library/rgMakeModel.nsf/0/100657432ccca9b0862582da006187dc/$FILE/A24CE_Rev_121.pdf
Model PT6A-36 PT6A-65B [4] PT6A-67D [4] [5] https://equaflight.com/wp-content/uploads/2019/08/EN-Aircraft-specifications-8.pdf
Max. Rated Takeoff Thrust, T_TO [kN] -   -   -   [6] https://web.archive.org/web/20120315223626/http://www.raytheon.com/businesses/rtnwcm/groups/public/documents/content/rtn_raas_prod_1900dp_pdf.pdf
Equivalent Power, P [kW] 526 [2] 820 [4] 954 [4] [7] https://aviationcargo.dhl.com/sites/default/files/aircraft_dimension_sheets/beech1900c.pdf
Propeller HC-B3TN-3/T10173E-8 [2] HC-B4MP-3A/M01877K [4] HC-E4A-3(x)/E10950 [4] [8] https://de.wikipedia.org/wiki/Beechcraft_Model_99
Cabin Length, l_CABIN [m] N/A   7,7 [5] 7,7 [6] Comments:
Max. Height, h_CABIN [m] N/A   1,45 [5] 1,8 [6] ¹ No further details
Max. Width, d_F,I [m] N/A   1,37 [5] 1,37 [5] ² Including 100 nm IFR alternate
Passenger Compartment Volume, V_CABIN [m³] N/A   15,29 [5] 18,12 [5]
Fuselage Height, h_F [m] N/A   N/A   N/A  
Width, w_F [m] N/A   N/A   N/A  
Total Length, l_A/C [m] 13,58 [8] 17,62 [5] 17,62 [6]
Span, b_W [m] 13,98 [8] 17,64 [5] 17,64 [6]
Height, h_A/C [m] 4,38 [8] 4,72 [5] 4,72 [6]
Landing Gear Track, l_T [m] N/A   N/A   N/A  
Wheelbase, l_WB [m] N/A   N/A   N/A  
Wing Area, S_W [m²] 25,98 [8] N/A   N/A  
Taper ratio, λ_W N/A   0,37 [5] N/A  
1/4 Chord Sweep, φ_25,W [°] N/A   1,6 [5] N/A  
Vertical Tail Area, S_V [m²] N/A   N/A   N/A  
Height, b_V [m] N/A   N/A   N/A  
Taper ratio, λ_V N/A   N/A   N/A  
1/4 Chord Sweep, φ_25,V [°] N/A   N/A   N/A  
Horizontal Tail Area, S_H [m²] N/A   N/A   N/A  
Span, b_H [m] N/A   5,61 [5] N/A  
Taper Ratio, λ_H N/A   0,54 [5] N/A  
1/4 Chord Sweep, φ_25,H [°] N/A   17,6 [5] N/A  
Cruise V_MO [kt] 282 [2] 297 [4] 301 [4]
M_MO [Mach] 0,45 [2] 0,47 [4] 0,48 [4]
Cruise Speed, M_CR [Mach] N/A   0,37 [5] 0,42 [6]
Max. Certified Flight Level, h_MCR [FL] 250 [2] 250 [4] 250 [6]
Cruise Altitude, h_CR [FL] N/A   250 [5] 200 [6]
Fuel Unusable Fuel [l] 20 [2] 34 [4] 40 [6]
Optional Fuel [l] -   -   -  
Max usable fuel [l] 1412 [2] 2525 [4] 2517 [6]
Range Max. Payload, R_MPL [nm] N/A   N/A   133 ²[6]
Max. Pax, R_M,pax [nm] N/A   1200 ¹[5] 382 ²[6]
Max. Range, R_PLMR [nm] 911 ¹[3] N/A   N/A  
Mass Max. Ramp, m_MR (MRM) [kg] 5162 [2] 8033 [4] 7814 [6]
Max. Take-Off, m_MTO (MTOM) [kg] 5126 [2] 7983 [4] 7764 [6]
Max. Landing, m_ML (MLM) [kg] 5126 [2] 7584 [4] 7603 [6]
Max. Zero Fuel, m_MZF (MZFM) [kg] N/A   6804 [4] 7120 [6]
Operating Empty, m_OE (OEM) (MZFM-MPL) [kg] 2946 [3] 4702 [5] 4932 [6]
Max. Payload, m_MPL (MPL) [kg] N/A   2102 [5] 2189 [6]
Payload at Max. Range, m_PLMR [kg] N/A   N/A   N/A  
Cargo Volume, V_CARGO [m³] N/A   3,5 [5] 4,96 [5]
Cargo Capacity -   -   -  
Max. Pallet Underfloor -   -   -  
Seats Max. Seats, n_M,SEAT 15 [2] 19 [4] 19 [4]
Std. Layout, n_SEAT 15 [8] 19 [7] 19 [6]