Junkers Ju 46

Ju 46
Role	Mail plane
Manufacturer	Junkers
Designer	Ernst Zindel, Hermann Pohlmann^[1]
First flight	March 1932
Introduction	April 1932
Primary user	Luft Hansa
Number built	5

The Junkers Ju 46 was a German shipborne catapult-launched seaplane derivative of the W 34, constructed for pre-war Luft Hansa's mail service over the Atlantic ocean. The first production models were delivered in 1932 and replaced the Heinkel He 58, which, along with the He 12, had pioneered these ship-to-shore mail delivery flights.

Design and development

The Ju 46 was a strengthened version of the Junkers W 34, modified for catapult launches. It was externally essentially identical to the W 33 apart from a revised vertical tail. Compared to the W 34, this carried a broader-chord rudder with a more rounded trailing edge and a noticeably squared-off top. This revision improved control of the aircraft during the low-speed launch. The ship to shore aircraft were all seaplanes (floatplanes), though some Ju 46 were used with a fixed wheeled undercarriage and tail-skid at times in their careers. The aircraft was equipped with a 441 kW (591 hp) BMW-C radial engine. A total of five aircraft were supplied, according to rebuilt civil registers,^[2] though other sources claim four.^[3] They were later equipped with more powerful BMW-E engines.

Operational history

The aircraft was used in the postal link service across the Atlantic Ocean and were based on board the NDL-liners SS Bremen and Europa. Each aircraft was associated with its ship and bore its name. The first Bremen and Europa were both Ju 46fi seaplane variants and went into use in 1932. Two (or three) more, Ju 46hi variants, joined them in mid-1933, one having started life as a landplane.

Both ships had been fitted with compressed air-driven catapults for this purpose. These catapults accelerated the 3,200 kg (7,050 lb) aircraft to a speed of 110 km/h (70 mph) at a distance of just 20 m (65 ft). The launch of these aircraft, painted bright red for easy spotting by rescue planes in case of emergency landings at sea, was always a special experience for the passengers. The launch at a distance of about 1,200 km (750 mi) from the destination allowed to land the mail some 24 hours ahead of the mother ship's docking.^[4] On Westbound crossings, they flew to New York; Eastbound to Southampton, where they refuelled and went on to Bremen. These activities were limited by weather to the summer months, beginning in April 1932.

After the end of their Luft Hansa service two of the Ju 46s flew with the Brazilian airline Syndicato Condor.

Operators

Brazil

Syndicato Condor - Serviços Aéreos Condor

Germany

Luft Hansa in cooperation with shipping line Norddeutscher Lloyd

Specifications (Seaplane)

Data from ^[5]

General characteristics

Crew: 2
Length: 11.06 m (36 ft 3.5 in)
Wingspan: 17.8 m (58 ft 5 in)
Height: 3.90 m (12 ft 9.5 in)
Wing area: 46.0 m² (495 ft²)
Empty weight: 1,980 kg (4,365 lb)
Max. takeoff weight: 3,200 kg (7,054 lb)
Powerplant: 1 × BMW 132E 9-cylinder single-row radial engine, 485 kW (650 hp)

Performance

Cruise speed: 200 km/h (125 mph)
Range: 2,000 km (1,242 mi)
Service ceiling: 4,240 m (13,900 ft)

References

Wikimedia Commons has media related to Junkers.

Notes

↑ http://hugojunkers.pytalhost.com/ju_w33_a1.htm
↑ http://www.goldenyears.ukf.net/
↑ Turner, P. St.J and Nowarra, H Junkers an aircraft album no.3. (1971).New York: Arco Publishing Inc. ISBN 978-0-668-02506-5
↑ http://www.baskerville.it/Flynet/aeromedia/ilastogb.html
↑ Turner, P. St.J and Nowarra, H Junkers an aircraft album no.3. (1971).New York: Arco Publishing Inc. ISBN 978-0-668-02506-5

Bibliography

Junkers aircraft designations by designating body

Company	J 1 J 2 J 3 J 4 J 5 J 6 J 7 J 8 J 9 J 10 J 11 J 12 F 13 J 15 K 16 K 17 J 18 T 19 A 20 H 21 / J 21 / T 21 J 22 T 23 G 23 F 24 / G 24 A 25 T 26 T 27 J 28 T 29 K 30 G 31 A 32 W 33 W 34 A 35 S 36 K 37 G 38 K 39 K 47 A 48 A 50 K 51 K 53

Idflieg	CL.I D.I E.I J.I

RLM	Ju 46 Ju 49 Ju 52 Ju 60 Ju 85 Ju 86 Ju 87 Ju 88 Ju 89 Ju 90 Ju 160 Ju 187 Ju 188 Ju 248 Ju 252 Ju 268 Ju 287 Ju 288 Ju 290 Ju 322 Ju 352 Ju 388 Ju 390 Ju 488 Ju 635

"EF" (experimental)	EF 61 EF 126 EF 127 EF 128 EF 131 EF 132 EF 140 EF 150

Reich Air Ministry aircraft designations

1 to 100	B 9 Gö 9 Do 10 Do 11 Wn 11 Do 12 Do 13 Do 14 Do 15 Wn 15 Do 16 Wn 16 Do 17 Do 18 Do 19 Do 20 Do 22 Do 23 Do 24 Kl 25 Do 26 Kl 26 M 27 Do 29 Kl 31 Kl 32 W 33 L 33 W 34 Kl 35 Kl 36 HD 37 HD 38 G 38 DFS 39 BV 40 DFS 40 A 40 Fw 42 He 42 Fw 43 HD 43 Fw 44 He 45 He 46 Ju 46 Fw 47 Ju 47 K 47 A 48 He 49 Ju 49 He 50 A 50 He 51 K 51 Ju 52 K 53 NR 54 Fw 55 NR 55 Fw 56 Fw 57 Fw 58 He 58 He 59 He 60 Ju 60 Fw 61 He 61 Fw 62 He 62 He 63 Ar 64 He 64 Ar 65 He 65 Ar 66 He 66 Ar 67 Ar 68 Ar 69 He 70 He 71 He 72 He 74 Ar 76 Ar 77 Ar 79 Ar 80 Ar 81 Ju 85 Ju 86 Ju 87 Ju 88 Ju 89 Ju 90 Ar 95 Ar 96 Fi 97 Fi 98 Fi 99 He 100

101 to 200	Al 101 Al 102 Al 103 Fi 103 Fh 104 Kl 105 Kl 106 Kl 107 Bf 108 Bf 109 Bf 110 He 111 He 112 He 113 He 114 He 115 He 116 Hs 117 He 118 He 119 He 120 Hs 121 Hs 122 Hs 123 Hs 124 Hs 125 Hs 126 Hs 127 Hs 128 Hs 129 Hs 130 Bü 131 Hs 132 Bü 133 Bü 134 Ha 135 Ha 136 Hü 136 Ha 137 BV 138 Ha 139 Ha 140 BV 141 BV 142 BV 143 BV 144 Go 145 Go 146 Go 147 Ju 147 Go 149 Go 150 Kl 151 Ta 152 Kl 152 Ta 153 Ta 154 BV 155 Fi 156 Fi 157 Fi 158 Fw 159 Ju 160 Bf 161 He 162 Bf 162 Bf 163 Me 163 Me 164 Fi 166 FK 166 Fi 167 Fi 168 He 170 He 172 He 176 He 177 He 178 Bü 180 Bü 181 Bü 182 Ta 183 Fl 184 Fl 185 Fw 186 Ju 186 Fw 187 Ju 187 Ju 188 Fw 189 Fw 190 Fw 191 Ao 192 DFS 193 DFS 194 Ar 195 Ar 196 Ar 197 Ar 198 Ar 199 Fw 200

201 to 300	Si 201 Si 202 DFS 203 Si 204 Fw 206 Me 208 Me 209 Me 209 (1943) Me 210 Hü 211 Do 212 Do 214 Do 215 Do 216 Do 217 Hs 217 He 219 He 220 BV 222 Fa 223 Fa 224 Ao 225 Fa 225 BV 226 Ho 226 FGP 227 DFS 228 Ho 229 DFS 230 Ar 231 Ar 232 Ar 233 Ar 234 Do 235 BV 237 BV 238 Fw 238 Ar 239 Ar 240 Go 241 Go 242 Go 244 BV 246 Ju 248 BV 250 Fw 250 Ho 250 Ho 251 Ho 252 Ju 252 Fi 253 Ho 253 Ta 254 Ho 254 Fi 256 Sk 257 Fw 261 Me 261 Me 262 Me 263 Me 264 Fl 265 Me 265 Fa 266 Ho 267 Ju 268 Fa 269 He 270 We 271 Fw 272 He 274 He 275 He 277 He 278 He 280 Fl 282 Fa 283 Ta 283 Fa 284 Fl 285 Ju 286 Ju 287 Ju 288 Ju 290 Me 290 As 292 Hs 293 Hs 294 Hs 295 Ar 296 Hs 296 Hs 297 Hs 298 Fw 300

301-	Me 309 Me 310 Do 317 Do 318 He 319 Me 321 Ju 322 Me 323 Me 328 Me 329 Fa 330 DFS 331 DFS 332 Fi 333 Me 334 Do 335 Fa 336 Fl 339 E.340 WNF 342 He 343 Rk 344 So 344 Go 345 DFS 346 Rk 347 Ba 349 Ju 352 Me 362 Me 364 Ju 388 Ju 390 Fw 391 Ar 396 Ta 400 Me 409 Me 410 Do 417 He 419 ZMe 423 Ar 430 Ka 430 Ar 432 Do 435 Ar 440 Ju 452 Me 462 Ju 488 Fw 491 Me 509 Me 510 He 519 ZSO 523 Ar 532 Do 535 E.555 Me 609 Ar 632 Do 635

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