Dornier Do 317

Do 317
Role	Heavy Bomber
Manufacturer	Dornier Flugzeugwerke
First flight	8 September 1943
Primary user	Luftwaffe
Number built	6
Developed from	Dornier Do 217

The Dornier Do 317 was a planned German heavy bomber of World War II.

Design and development

In June 1940, Dornier produced plans for further development of the Do 217, which would have a pressurized cabin and more powerful engines (DB 604 or Jumo 222). Designated Do 317, it was one of the proposals submitted to the RLM for the "Bomber B" project. Two versions of the Do 317 were proposed: the simplified Do 317A powered by two DB 603A engines and featuring conventional defensive armament, and the more advanced Do 317B with the heavy 1.5 tonnes apiece, counter-rotating DB 610A/B "power system" engines, remotely aimed Fernbedienbare Drehlafette (FDL)-style gun turrets, heavier bombload, and an extended wing.

Six prototypes of the Do 317A were ordered, and the first of these, the Do 317 V1, commenced its flight test program on 8 September 1943. The Do 317 V1 was very similar in appearance to the later Do 217K and -M subtypes, with a visually re-framed slight variation of its multiple glazed-panel "stepless cockpit" fully glazed nose design that accommodated a pressurized cabin provision, and triangular tail fins. Trials with the Do 317 V1 revealed no real performance advance over the Do 217, so it was decided to complete the remaining five prototypes without cabin pressurization equipment and fit them out with FuG 203 Kehl radio guidance transmitting gear to employ them as Henschel Hs 293 missile launchers. In this form the prototypes were redesignated Do 217R. At this time, the Do 317B project was abandoned due to changing wartime conditions.

Specifications (Do 317A)

Data from Die Deutsche Luftrüstung 1933–1945^[1]

General characteristics

Crew: 4
Length: 16.8 m (55 ft 1 in)
Wingspan: 20.63 m (67 ft 8 in)

Do 317B - 26 m (85 ft)

Height: 5.44 m (17 ft 10 in)
Wing area: 68 m² (730 sq ft)
Gross weight: 20,140 kg (44,401 lb)

Do 317B (estimated) - 24,000 kg (52,911 lb)

Powerplant: 2 × Daimler-Benz DB 603A inverted V-12 liquid-cooled piston engine, 1,300 kW (1,750 hp) each

Do 317B - 2x Daimler-Benz DB 610A/B (twinned DB605 engines) rated at 2,171 kW (2,911 hp)

Performance

Maximum speed: 560 km/h (348 mph; 302 kn) at 6,000 m (19,685 ft)

Do 317B (estimated) - 670 km/h (416 mph) at 7,620 m (25,000 ft)

Cruising speed: 420 km/h (261 mph; 227 kn)

Do 317B (estimated) - 537 km/h (334 mph)

Stall speed: 133 km/h (83 mph; 72 kn)
Range: 3,980 km (2,473 mi; 2,149 nmi)

Do 317B (estimated) - 3,600 km (2,237 mi)

Service ceiling: 9,800 m (32,152 ft)

Do 317B (estimated) - 10,515 m (34,498 ft)

Armament

Guns:

Do 317A

3 × 13 mm (0.512 in) MG 131 machine gun in upper turret, rear dorsal, and rear ventral positions

2 × 7.92 mm (0.312 in) MG 81 machine gun in nose

1 × 15 mm (0.591 in) MG 151 cannon in nose

Do 317B

4 × 13 mm (0.512 in) MG 131 machine gun in forward and rear dorsal turrets

2 × 7.92 mm (0.312 in) MG 81 machine gun in a nose barbette

1 × 20 mm (0.787 in) MG 151/20 cannon in a tail barbette

Bombs:

Do 317A

Up to 4,000 kg (8,818 lb)of disposable stores

Do 317B

Up to 9,200 kg (20,283 lb)of disposable stores

Notes

↑ Nowarra, Heinz J. (1993). Die Deutsche Luftrüstung 1933–1945 : Band 1 Flugzeugtypen AEG - Dornier. 1. Koblenz: Bernard & Graefe Verlag. p. 41. ISBN 3-7637-5465-2.

References

Wikimedia Commons has media related to Dornier aircraft.

Griehl, M. Dornier Do 217-317-417: an Operation History. Airlife, 1991.
Green, W. Warplanes of the Third Reich. Galahad Books, 1986.
D. Herwig & H. Rode Luftwaffe Secret Projects - Ground Attack & Special Purpose Aircraft. ISBN 1-85780-150-4
Nowarra, Heinz J. (1993). Die Deutsche Luftrüstung 1933–1945 : Band 1 Flugzeugtypen AEG - Dornier. 1. Koblenz: Bernard & Graefe Verlag. p. 41. ISBN 3-7637-5465-2.

Dornier and Zeppelin-Lindau aircraft

Zeppelin-Lindau 1914-1919	Rs.I Rs.II Rs.III Rs.IV C.I C.II CS.I CL.II D.I GS.I V1

Dornier designations 1919-1933	Do A Do B Do C Do D Do E Do F Do G (project) Do H Do J Do K Do L Do N Do O Do P Do Q Do R Do S Do T Do U Do V Do X Do Y Delphin Komet Libelle Merkur Spatz Wal

RLM designations 1933-1945	Do 10 Do 11 Do 12 Do 13 Do 14 Do 15 Do 16 Do 17 Do 18 Do 19 Do 20 Do 22 Do 23 Do 24 Do 25 Do 26 Do 29 Do 212 Do 214 Do 215 Do 216 Do 217 Do 317 Do 318 Do 335 Do 417 Do 435 Do 635 P.59 P.85 P.174 P.184 P.192 P.231 P.232 P.238 P.247 P.252 P.254 P.256 P.273 P.1075

Dornier designations post-1945	Do 24 Do 25 Do 27 Do 28 Do 29 Do 31 Do 32 Do 34 Do 128 Do 132 Do 228 Do 231 328 328JET 428 528 728JET 928JET Aerodyne Alpha Jet Projekt 621 Seastar S-Ray 007

See also Claudius Dornier and Dornier Museum Friedrichshafen

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

Authority control	GND: 4193758-2

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Dornier Do 317

Design and development

Specifications (Do 317A)

See also

Notes

References