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NACA-RM-L7D11
Wind-tunnel investigation of bomb-bay configurations intended to minimize the tumbling of light-weight bombs
Year: 1947
Abstract: INTRODUCTION
An investigation has been conducted in the Langley 300 MPH 7 by 10-foot tunnel to determine what modifications to conventional bombay designs are necessary to insure satisfactory drops with light weight (100 lb) bombs. It has been reported that light weight bombs frequently described erratic initial trajectories when dropped at relatively high bombing speeds ( of the order of 300 miles per hour and greater). This behavior, apart from precluding accurate bombing, sometimes resulted in the bombs hitting each other and causing explosions.
The present investigation consisted of a photographic study of the trajectories described by small model bombs as they were released from a simulated bomb bay in a fuselage model. The tests were conducted at two tunnel speeds and the effects of various deflectors, separators, door arrangements, and bomb-bay modifications were investigated. In addition, tuft studies were made of the flow in and around the bomb bay and static pressure fluctuations were measured at two points in the bomb bay for some of the bomb-bay configurations investigated.
An investigation has been conducted in the Langley 300 MPH 7 by 10-foot tunnel to determine what modifications to conventional bombay designs are necessary to insure satisfactory drops with light weight (100 lb) bombs. It has been reported that light weight bombs frequently described erratic initial trajectories when dropped at relatively high bombing speeds ( of the order of 300 miles per hour and greater). This behavior, apart from precluding accurate bombing, sometimes resulted in the bombs hitting each other and causing explosions.
The present investigation consisted of a photographic study of the trajectories described by small model bombs as they were released from a simulated bomb bay in a fuselage model. The tests were conducted at two tunnel speeds and the effects of various deflectors, separators, door arrangements, and bomb-bay modifications were investigated. In addition, tuft studies were made of the flow in and around the bomb bay and static pressure fluctuations were measured at two points in the bomb bay for some of the bomb-bay configurations investigated.
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:34:26Z | |
| date available | 2017-09-04T15:34:26Z | |
| date copyright | 01/01/1947 | |
| date issued | 1947 | |
| identifier other | OMMCWDAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/36164 | |
| description abstract | INTRODUCTION An investigation has been conducted in the Langley 300 MPH 7 by 10-foot tunnel to determine what modifications to conventional bombay designs are necessary to insure satisfactory drops with light weight (100 lb) bombs. It has been reported that light weight bombs frequently described erratic initial trajectories when dropped at relatively high bombing speeds ( of the order of 300 miles per hour and greater). This behavior, apart from precluding accurate bombing, sometimes resulted in the bombs hitting each other and causing explosions. The present investigation consisted of a photographic study of the trajectories described by small model bombs as they were released from a simulated bomb bay in a fuselage model. The tests were conducted at two tunnel speeds and the effects of various deflectors, separators, door arrangements, and bomb-bay modifications were investigated. In addition, tuft studies were made of the flow in and around the bomb bay and static pressure fluctuations were measured at two points in the bomb bay for some of the bomb-bay configurations investigated. | |
| language | English | |
| title | NACA-RM-L7D11 | num |
| title | Wind-tunnel investigation of bomb-bay configurations intended to minimize the tumbling of light-weight bombs | en |
| type | standard | |
| page | 32 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1947 | |
| contenttype | fulltext |