FLYBOYJ
"THE GREAT GAZOO"
A friend of mine is looking for these TOs - B-29 Turret maintenance. He works at the USAF Museum at Hill AFB and I guess they have a turret they want to restore. Thanks in advance!
T.O. 11-70A-1,TO 11-70AA-9
- Thread starter FLYBOYJ
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MiTasol
Captain
The second may be hard to find. The first shows in the TO index for 1945-04-01 and one year later,
The second does not show in either index and the 70AA subject only started sometime after April 45.
The second does not show in either index and the 70AA subject only started sometime after April 45.
- Thread starter
- #3
FLYBOYJ
"THE GREAT GAZOO"
Thanks for the info. Any leads on getting a copy of the first one?
MiTasol
Captain
| AirCorps Library
app.aircorpslibrary.com
Looks like Ester has a good selection of those 11-70A series manuals and even some AA ones as well
EAIAnalog
Airman
You need the turret model number to find the correct documentation. Somewhere on the gun cradle will be a nameplate with the manufacturer (either General Electric or General Railway Signal) and the model number (something like 2CFR55Y1). Here are some related documents:
TO 11-70A-3 Parts Catalog for B-29 Airplane Central Station Fire Control System
Models 2CFR55B1 (GE) and 2CFR55Y1(GRS) (407 pages - 10/15/1943)
AN 11-70AA-1 Parts Catalog for B-29 Airplane Central Station Fire Control System
Models 2CFR55B1, B2, B3, B4 and 2CFR55Y1, Y3, Y4 (429 pages - 5/17/1946)
AN 11-70A-20 Operation & Service Instructions for B-29 Airplane Remote Control Turret System
Models 2CFR55C1, C2 and 2CFR55X1, X2 (420 pages - 5/30/1945)
AN 11-70A-29 Operation & Service Instructions for B-29 Airplane Remote Control Turret System
Models 2CFR55D1, D2 and 2CFR55W1, W2 (390 pages - 12/10/1945)
TO 11-70A-2 Overhaul Instructions for B-29 Airplane Remote Control Turret System
Model 2CFR55B1 (1036 pages - 12/15/1944)
TO 11-70AA-3 Overhaul Instructions for B-29 Airplane Remote Control Turret System
Model 2CFR55B1, B2, B3, B4, C1, C2, D1, Y1, Y3, Y4 (1377 pages - 6/3/1946)
Aircorps Library has a copy of TO 11-70AA-3. The National Air and Space Museum at the Smithsonian has most of the rest. You can contact them about making copies.
TO 11-70A-3 Parts Catalog for B-29 Airplane Central Station Fire Control System
Models 2CFR55B1 (GE) and 2CFR55Y1(GRS) (407 pages - 10/15/1943)
AN 11-70AA-1 Parts Catalog for B-29 Airplane Central Station Fire Control System
Models 2CFR55B1, B2, B3, B4 and 2CFR55Y1, Y3, Y4 (429 pages - 5/17/1946)
AN 11-70A-20 Operation & Service Instructions for B-29 Airplane Remote Control Turret System
Models 2CFR55C1, C2 and 2CFR55X1, X2 (420 pages - 5/30/1945)
AN 11-70A-29 Operation & Service Instructions for B-29 Airplane Remote Control Turret System
Models 2CFR55D1, D2 and 2CFR55W1, W2 (390 pages - 12/10/1945)
TO 11-70A-2 Overhaul Instructions for B-29 Airplane Remote Control Turret System
Model 2CFR55B1 (1036 pages - 12/15/1944)
TO 11-70AA-3 Overhaul Instructions for B-29 Airplane Remote Control Turret System
Model 2CFR55B1, B2, B3, B4, C1, C2, D1, Y1, Y3, Y4 (1377 pages - 6/3/1946)
Aircorps Library has a copy of TO 11-70AA-3. The National Air and Space Museum at the Smithsonian has most of the rest. You can contact them about making copies.
- Thread starter
- #6
FLYBOYJ
"THE GREAT GAZOO"
Great info! Forwarded to my contact, many thanks!
MiTasol
Captain
The staff at the Smithsonian are excellent but with Covid they have ended up being even more overloaded and understaffed so it may take a while for them to answer. My last reply from them took five months pre pandemic tho part of that delay may be Australia Post often taking weeks to move a letter from Sydney to where I live 1200km/800 miles away.
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