- A: D18C, D18S
- AA: D18C, D18C-T, D18S
- AD: Bonanza – O35
- AF: D18S
- AG: Mentor – D45 (Argentine production)
- AT: Texan II – 3000
- B (first series): Staggerwing – G17S
- B (second series): King Air – 100, A100
- BA: E18S, E18S-9700, G18S, G18S-9150, H18
- BB: Super King Air – A100-1, 200, B200, B200C†, 1300
- BC: Super King Air – A200
- BD: Super King Air – A200
- BE: King Air – B100
- BF: King Air – C100
- BG: Mentor – D45
- BJ: Super King Air – A200C
- BK: TBD (target drone/missile)
- BL: Super King Air – 200C, B200C
- BN: Super King Air – 200CT, B200CT
- BP: Super King Air – A200C, A200CT
- BT: Super King Air – 200T, B200T
- BU: Super King Air – A200C
- BV: Super King Air – B200C
- BW: Super King Air – B200C
- BY: Super King Air – B200GT, 250, 260
- BZ: Super King Air – B200CGT, 250CHW, 260CHW
- C: 34
- CA: D18S
- CB: Streaker – 999
- CD: Debonair/Bonanza – 35-33, 35-A33, 35-B33, , 35-C33, E33, F33, F33C, G33
- CE: Debonair/Bonanza – 35-C33A, E33A, F33A
- CED: Bonanza – 1074
- CG: Mentor – B45
- CH: Twin Bonanza – B50, C50
- CJ: Bonanza – E33C, F33C
- D: Bonanza – D33, 35, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, P35, S35, V35, V35TC, V35A, V35A-TC, V35B
- DG: Mentor – D45
- DH: Twin Bonanza – D50, D50A, D50B, D50C, D50E
- E: Bonanza – 36, A36, A36AT, G36
- EA: Bonanza – A36TC, B36TC
- EB: Bonanza – 1079
- EC: Bonanza – T36TC
- EH: Twin Bonanza – E50
- EJ: Lightning – 38P
- F: Jet Mentor – 73
- FA: Super King Air – 300, 300AT, 300LW
- FC: Super King Air – A200CT
- FE: Super King Air – A200CT
- FF: Super King Air – 300
- FG: Super King Air – A200CT
- FH: Twin Bonanza – F50
- FL: Super King Air – B300, B300C, 350, 350C, 350ER, 350ER/ISR, 350HW, 350i, 360, 360ER
- FM: Super King Air – B300, B300C, 350C, 350CER, 350CHW, 350i, 360C, 360CER
- FN: Super King Air – B300C, 350C
- G: Mentor – 45, A45
- GH: Twin Bonanza – G50
- GK: TBD (target drone/missile)
- GL: Turbo-Mentor – 45
- GM: Turbo-Mentor – 45
- GP: Turbo-Mentor – 45
- GR: Super King Air – A200CT
- H: Twin Bonanza – 50
- HA: 900XP
- HB: 750
- HH: Twin Bonanza – H50
- JG: Mentor – D45 (Japanese production)
- JH: Twin Bonanza – J50
- JT: Streaker – 999
- KA: TBD (target drone/missile)
- KF: Cardinal – 1001A
- KH: Twin Bonanza – K50 (construction numbers reserved but none built)
- KT: TBD (target drone/missile)
- L: Queen Air – 65
- LA: King Air – F90, F90-1
- LB: Queen Air – 70
- LC: Queen Air – 65, A65, A65-8200
- LD: Queen Air – 65-80, 65-A80, 65-A80-8800, 65-B80
- LE: King Air – G90
- LF: Queen Air – 65
- LG: King Air – 87
- LH: Twin Bonanza – 50, B50, C50, D50, E50
- LHC: Twin Bonanza – E50
- LHD: Twin Bonanza – E50
- LHE: Twin Bonanza – E50
- LJ: King Air – 65-90, 65-A90, B90, C90, C90-1, C90A, C90B, C90SE, C90GT, C90GTi, C90GTx
- LK: King Air – D90
- LL: King Air – H90
- LM: King Air – 65-A90-1
- LN: Queen Air – 85
- LP: Queen Air – 65-88
- LR: Airliner – PD.208
- LS: King Air – 65-A90-2
- LT: King Air – 65-A90-3
- LU: King Air – 65-A90-4
- LW: King Air – E90
- M: Musketeer/Sundowner – 23, A23, A23A, B23, C23
- MA: Musketeer Sport – A23-24, A24
- MB: Musketeer Sport – A23-19, 19A, M19A, B19
- MC: Sierra – A24R, B24R, C24R
- MD (first series): D18S
- MD (second series): 16
- ME: Duchess – 76
- N: D18S
- NC: Starship – 2000, 2000A
- P: Duke – 60, A60, B60
- PF: Texan II – 3000
- PG: Texan II – 3000
- PH: Texan II – 3000
- PM: Texan II – 3000
- PN: Texan II – 3000
- PT: Texan II – 3000, PD.373
- R: Bonanza – 35R
- RB: Premier – 390
- RC: Horizon – 4000
- RD: Premier – 390-2
- RJ: Beechjet – 400
- RK: Beechjet – 400A, 400XP
- RLH: Twin Bonanza – E50
- STC: Baron – SF-60A (modification of Baron)
- TC: Baron – 95-55, 95-A55, 95-B55, 95-C55
- TD: Travel Air – 95, B95, B95A, D95A, E95
- TE: Baron – 95-C55, D55, E55
- TF: Baron – 95-B55B
- TG: Baron – 56TC, A56TC
- TH: Baron – 58, G58
- TJ: Baron – 58P
- TK: Baron – 58TC
- TT: Beechjet – 400T
- TX: Beechjet – 400T
- U: Airliner – 99, 99A, A99A, B99, C99
- UA: 1900
- UB: 1900C
- UC: 1900C
- UD: 1900C
- UE: 1900D
- WA: Skipper – 77
- X: Mentor – B45
- 220: Denali – 220 (prototypes)
- E220: Denali – 220 (prototypes)
† Although listed in Beechcraft documents as a Model B200, BB-1733 was built as a C-12R (B200C) for the Hellenic Army.
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