Improvements

The B-17G was the latst production model of the “Flying Fortress” and was manufactured in the greates numbers.

B-17G mit Kinnturm // Wikipedia Commons [Public Domain]

B-17G mit Kinnturm // Wikipedia Commons [Public Domain]

In effect, the B-17G was the B-17F with the powered Bedinx chin turret fitted under the nose section. Design modifications included the Minneapolis-Honeywell electric turbo-supercharger regulators allowing manifold pressure, or boost, to be controlled by one control knob for all four engines. the pilot no longer had to worry about over-revving turbines or having to constantly tweak power controls to stop oil in regulator lines becoming sluggish. Another major difference was that the waist gunners were given anenclosure that protected them from the icy temperatures of high altitude with the position of the guns staggered to give them more room to manoeuvre. The tail gun position was also improved allowing a wider field of fire, a reflector sight, and hand held guns.

Chenyenne-Turret // http://www.americanairmuseum.com/media/4381 // CC-BY-NC 3.0

Chenyenne-Turret // http://www.americanairmuseum.com/media/4381 // CC-BY-NC 3.0

However, the new model B-17 also experienced its own operating difficulties. When fired at maximum elevation, the chin turret guns had a tendency to crack the plexiglass nose; a problem was solved by fitting blast barrels to each gun. The oil cooler regulator often failed to operate and could result in complete engine seizure. The ability to feather the propeller blades, in event of engine failture, was lost in the B-17G because the standpipe that held back sufficient oil to work the feathering tank was sacrificed in the quest for a lighter aircraft. This was a major design error and meant that, by the winter of 1943, the lack of feathering was a major reason for bomber loss. Urgent request were made by Groups for special modifications kits but it was only in September 1944 that B-17G’s arrived with these modifications built-in.

Fatal Error

Another serious problem on the B-17G was the lack of an engine fire extinguisher system. Designers had believed that it was ineffective so had left it out of the new model. In reality, the system had worked well and it was requested by Bomber Groups that it be re-introduced as soon as possible.

B-17G im Flug // http://www.americanairmuseum.com/media/2433 // CC-BY-NC 3.0

B-17G im Flug // http://www.americanairmuseum.com/media/2433 // CC-BY-NC 3.0

The B-17G was still tail heavy with the same centre of gravity problems as earlier models. However, by May 1944, when long-range fighter esort was effective defensive protection, gunners were not as busy as before and it was decided that one waist gunner be dispensed with. The radio romm gun, the least used in action, was got also rid of and the quanity of ammunition carried reduced. All these measures brought the centre of gravity nearer th a more acceptable position. In the las month of the war, when there was little enemy fighter activity, some Combat Wings flew without waist guns, ball turrets or chin turrets. Operational reports revealed an estimated 25mph increase in airspeed with the improved streamlining. In this period of the war flak batteries were a greater hazard than fighters and unneccesary gunner armor plate was removed to be replaced with laminated steel and canvas plates called “flak curtains”.

In total, the 8th Air Force received 6,500 B-17G’s. In March 1945, it could send 2,370 of them into combat operations. At the end of the war a total 1,301 B-17G’s had been shot down or reported missing in action.

- Werbung/Advertisement -

Random B-17s of this version and their fates

B-17 Bomber Flying Fortress – The Queen Of The Skies 42-31376

42-31376

95th Bomb Group 336th Bomb Squadron Scrapped

Delivered Cheyenne 27/10/43; Assigned 336BS/95BG [ET-U] Horham 26/12/43; 48m, Missing in Action Gdynia 6/8/44 with G.B. Herchenhahan, crew unknown; sustained battle damage and force landed Russia and abandoned, Salvaged & repaired 12/11/44; transferred 463BG Celone, It. 20/12/44; Returned to the USA Hunter 25/6/45; 4168 Base Unit, South Plains, Texas 27/6/45; Reconstruction Finance Corporation (sold for scrap metal in USA) Kingman 9/12/45.

B-17 Bomber Flying Fortress – The Queen Of The Skies 44-6452 / Big Stuff

44-6452 / Big Stuff

2nd Bomb Group 20th Bomb Squadron Failed to return

Delivered Kearney 8/8/44; Grenier 15/8/44; Assigned 20BS/2BG Amendola 22/8/44; Missing in Action Ruhland 23/3/45 with Arthur Ferkin, Co-pilot: Andy Girolamo, Navigator: Paul Kisak, Bombardier: Bob Phillippe, Flight engineer/top turret gunner: Carleton Sprague, Radio Operator: Bill Harrison, Ball turret gunner: Ray Isaac, Waist gunner: Curtis Hollister, Waist gunner: Russell Johnson,Tail gunner: Wilson Woodburn (10RTD after two months in Russian captivity in Kiev prison); two engines out, a prop windmilling, bellied in Kety, Pol; crew OK, returned to Naples 7/5/45; Missing Air Crew Report 13276. BIG STUFF.

B-17 Bomber Flying Fortress – The Queen Of The Skies 42-31190

42-31190

Delivered Cheyenne 29/9/43; Harvard 15/10/43; crashed in bad weather while on training flight 22/10/44 with ?, (5 off & 9 EM Killed in Service); Written off 23/12/44.

B-17 Bomber Flying Fortress – The Queen Of The Skies 42-37771

42-37771

305th Bomb Group 422nd Bomb Squadron Returned to the USA

Delivered Denver 23/8/43; Scott 30/9/43; Assigned 422BS/305BG [JJ-Q] Chelveston 18/10/43; transferred 858BS Watton 24/6/44; retUS 121 BU Bradley 3/7/45; 4168 Base Unit, South Plains, Texas 21/9/45; Reconstruction Finance Corporation (sold for scrap metal in USA) Kingman 19/12/45.

    Leave a comment



    ** = Deine Email bleibt geheim / Your email will not published.