.

Beech SNB- / JRB- Expeditor

.
.
.
 

Development

Entwicklung

   

Bestellt

.
 

Variants

Versionen

  SNB-1

Trainer variant for the US Navy, similar to AT-11(US Army), 110 build.

  SNB-1

Trainingsmaschien auf der Bais der AT-11 (US Army), 110 Maschinen gebaut.

  SNB-2

Navigation trainer for the US Navy, similar to AT-7. 299 built.

  SNB-2

Navigationstrainer der US Navy auf der Baisi der AT-7, 299 gebaut.

  SNB-2C

Variant for the US Navy, similar to AT-7C

  SNB-2C

Variete der AT-7C für die US Navy

  SNB-2H

Ambulance conversion for the US Navy.

SNB-2H Umbau zu einem Ambulanzflugzeug für die US Navy.
  SNB-2P

Photo reconnaissance trainer for the US Navy.

SNB-2P Photoaufklärungstrainer für die US Navy.
  SNB-3

Variant for the US Navy, similar to AT-7C

  SNB-3

Variante der AT-7C für die US Navy

  SNB-4

 

  SNB-4

 

  SNB-5
TC-45J

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

  SNB-5
TC-45J

Neue Bezeichnung für umgebaute und erneuerte SNB-2s und SNB-2C Trainer.

  SNB-5P
RC-45J

Photo reconnaissance trainer for the US Navy.

  SNB-5P
RC-45J

Photoaufklärungstrainer für die US Navy.

  JRB-1

Photographic aircraft for the US Navy, based on the C18S. 12 built

  JRB-1

Aufklärungsflugzeug der US Navy auf der Basis der C18S. 11 Maschinen gebaut.

  JRB-2

Light transport version, based on the C18S, 17 build.

  JRB-2

Leichte Transportmaschine auf der Basis der C18S, 17 Maschinen gebaut.

  JRB-3
C-45B

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

  JRB-3
C-45B

Aufklärungsflugzeug auf der Basis der C-45B, 23 Maschinen gebaut.

  JRB-4
UC-45F

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

  JRB-4
UC-45F

Leichte Transportmaschine auf der Basis der UC-45F, 328 Maschinen gebaut.

  JRB-5     JRB-5  
  JRB-6     JRB-6  
.
 

Operational history

Einsatzgeschichte

 

The first five of more than 1,500 twin-engine Beech 18s used by the Navy and Marine Corps were ordered in 1940 with the designation JRB-1. Developed from the civil model C-18S and the USAAC F-2 variant of the Beech 18, they were intended primarily for photography. In addition to special fittings in the fuselage, they had a distinctive fairing over the cockpit to improve all-round visibility for the crew. Six more JRB-1s soon followed the first five, and at the same time the Navy ordered 15 JRB-2s for use as light transports. 

For a short time, the five-seat JRB transports were known as Voyagers, but the official 'popular' name eventually become Expeditor and further quantities were obtained during World War II. These included 23 JRB-3s, which were similar to the USAAF's C-45B and were fitted for photo­graphy; and the 328 JRB-4s, which were the Naval equivalent of the standardized seven-seat UC-45F. Following adoption of the Beech 18 by the USAAF in 1941 as a navigation and bombardier trainer, the Navy acquired a quantity of similar aircraft in various training roles. Equivalent to the AT-11, the SNB-1 Kansan in 1942 had a dorsal turret and a modified nose with a bomb-aimer's station and was used to train crews for Naval patrol aircraft. Outwardly similar to' the JRB-2 and equivalent to the Army's AT-7, the SNB-2 Navigator also was ordered in 1942. Some were delivered with changed equipment as the SNB-2C (similar to AT-7C) and in 1945 others were modified for ambulance duties with the designation SNB-2H. The SNB-2P version carried cameras for training in photo-reconnaissance. The Navy's Beech 18s remained in service in considerable numbers after the end of the war: some 1,200 were still in the inventory in 1950 and a sizeable quantity remained operation al 20 years after V-J Day. As well as continuing in service as trainers and light transports they were adapted for special roles, such as the SNB-3Q trainer for electronic countermeasures techniques. A major modernization and remanufacturing scheme was undertaken in 1951, similar to that for USAF C-45s. This resulted in the appearance of the JRB-6 transports and SNB-5 and SNB-5P trainers, the latter being modernized SNB-2Ps. 

When the Defense Department introduced its unified designation system in 1962, surviving SNB-5s and -5Ps then became TC-45Js and RC-45Js respectively. Subsequently, the primary mission of the TC-45Js changed from training to utility transport, and these aircraft then became UC-45Js

G

.

Drawings

Zeichnungen

  USN Beech1.PNG (35387 Byte) USN Beech 05.png (67921 Byte) USN Beech3.PNG (37870 Byte)
  NARW- NARW- VF(AW)-3
  USN Beech4.PNG (66301 Byte) USN Beech2.PNG (36060 Byte) VU-3-01.png (65103 Byte)
  NATTU Whidbey Island  VU-3
.
 

Specifications

Technische Daten

Specifications

UC-45F

Wingspan

Spannweite

14.53 m

Length

Länge

10.41 m

Height

Höhe

2.95 m

Wing area

Flügelfläche

32.4 m²

Engine

Motor

2× Pratt & Whitney R-985-AN-1 "Wasp Junior" radial engines, 450 hp each

Maximum speed

Höchstgeschwindigkeit

360 km/h

Empty weight

Leergewicht

2,800 kg

Loaded weight

Startgewicht

3,400 kg

Climb Rate

Steigrate

9.4 m/s

Service ceiling

Gipfelhöhe

7,930 m

Range

Reichweite

1,900 km

Armament

Bewaffnung

none

.

Serials

Seriennummern

Beech JRB- SNB- Expeditor
JRB-1 2543 - 2547 5
JRB-1 4709 - 4710 2
JRB-1 4726 -4729 4
JRB-1 09771 1
JRB-2 4711 - 4725 15
JRB-2C 90522 - 90523 2
JRB-3 76740 - 76759 20
JRB-3 86294 + 87752 + 84032 3
JRB-4 44315 1
JRB-4 44555 - 44684 130
JRB-4 48246 - 48251 6
JRB-4 66395 - 66471 77
JRB-4 76760 - 76779 20
JRB-4 85096 - 85135 40
JRB-4 86293 + 86295 + 
86296 + 87753
4
JRB-4 90532 - 90581 50
SNB-1 39749 - 39998 250
SNB-1 51025 - 51094 70
SNB-2 03553 - 03562 10
SNB-2 12354 - 12389 35
SNB-2 39192 - 39291 100
SNB-2 51200 - 51293 94
SNB-2 67100 - 67129 30
SNB-2 67155 - 67383 228
SNB-2C 23757 - 23856 100
SNB-2C 29551 - 29664 114
SNB-2C 51095 - 51199 105
SNB-2C 51294 - 51349 56
SNB-5 140987 - 140992  6
E-18S 147548 1

Total

1572


- Last update: 22. December 2012 Writen: 1. September 2010 - -
- Corrections, additions and remarks please send to the Web master Michael E. Fader -
- If information from this site is used as source material please credit www.wings-aviation.ch  -
- If this page does not have a navigational frame on the left, click HERE to see the rest of the website. -