Beechcraft Model 18 - Variants - Military Versions

Military Versions

C-45

Six seat staff transport based on C18S; 11 built.

C-45A

Eight seat utility transport based on C18S; 20 built.

RC-45A

Redesignation of all surviving F-2, F-2A and F-2B aircraft by the USAF in 1948.

C-45B

Based on C18S but with modified internal layout; 223 ordered. Re-designated UC-45B in 1943.

• • Expeditor I: Some C-45Bs were supplied to the RAF under Lend-Lease.

C-45C

Two Model 18S aircraft impressed into the USAAF. Re-designated UC-45C in January 1943.

C-45D

Designation given to two AT-7 aircraft converted as passenger transports during manufacture. Re-designated UC-45D in January 1943.

C-45E

Designation given to two AT-7 and four AT-7B aircraft converted as passenger transports during manufacture. Re-designated UC-45E in January 1943.

C-45F

Standardised seven-seat version based on C18S, with longer nose than preceding models; 1,137 ordered. Redesignated UC-45F.

• • Expeditor II: C-45Fs supplied to the RAF and Royal Navy under Lend-Lease.
  • Expeditor III: C-45Fs supplied to the RCAF under Lend-Lease.

C-45G

AT-7s and AT-11s remanufactured in early 1950s for the United States Air Force (USAF) to similar standard as civil D18S with autopilot and R-985-AN-3 engines; 372 aircraft rebuilt.

TC-45G

Multi-engine crew trainer variant of C-45G; AT-7s and AT-11s remanufactured in early 1950s for the USAF to similar standard as civil D18S. 96 aircraft rebuilt.

C-45H

AT-7s and AT-11s remanufactured in early 1950s for the USAF to similar standard as civil D18S, with no autopilot and R-985-AN-14B engines; 432 aircraft rebuilt.

TC-45H

RC-45J

In 1962 all surviving U.S. Navy SNB-5Ps were redesignated RC-45J.

TC-45J

In 1962 all surviving U.S. Navy SNB-5s were redesignated TC-45J.

UC-45J

AT-7 Navigator

Navigation trainer based on C18S, with an astrodome and positions for three students. Powered by 450 hp (336 kW) R-985-25 engines; 577 built.

AT-7A

Floatplane version of AT-7; six built.

AT-7B

Winterised AT-7; nine built.

AT-7C

Based on C18S with R-985-AN3 engines; 549 built.

AT-11 Kansan

Bombing and gunnery trainer for USAAF derived from AT-7. Fuselage had small circular cabin windows, bombardier position in nose, and bomb bay; Gunnery trainers were also fitted with two or three .30 caliber machine guns. Early models, (the first 150 built), had a single .30 AN-M2 in a Beechcraft-manufactured top turret, Later models utilized a Crocker Wheeler twin .30 caliber top turret. A bottom tunnel gun was used for tail gunner training. 1,582 built for USAAF orders, with 24 ordered by Netherlands repossessed by USAAF and used by the Royal Netherlands Military Flying School at Jackson, Mississippi.

AT-11A

Conversion of AT-11 as navigation trainer; 36 converted.

CQ-3

Conversion of UC-45F, modified to act as drone control aircraft. Re-designated as DC-45F in June 1948.

F-2

Photo-reconnaissance version based on B18.

F-2A

Improved version.

F-2B

JRB-1

Photographic aircraft for the U.S. Navy, based on the C18S, fitted with fairing over cockpit for improved visibility. 11 built.

JRB-2

Light transport for the U.S. Navy, based on the C18S; 15 built.

JRB-3

Photographic version, similar to C-45B; 23 built.

JRB-4

Utility transport version, equivalent to UC-45F; 328 built.

JRB-6

SNB-1

Variant for the U.S. Navy, similar to AT-11; 110 built.

SNB-2

Navigation trainer for the U.S. Navy. Similar to AT-7; 299 built.

SNB-2C

Variant for the U.S. Navy, similar to AT-7C.

SNB-2H

Ambulance conversion for the U.S. Navy.

SNB-2P

Photo reconnaissance trainer for the U.S. Navy.

SNB-3

Variant for the U.S. Navy, similar to AT-7C.

SNB-3Q

Electronic counter-measures trainer for the U.S. Navy.

SNB-5

SNB-2s and SNB-2Cs were remanufactured, and designated SNB-5 by the U.S. Navy.

SNB-5P

Photographic-reconnaissance trainer for the U.S. Navy.