| Description: | Tests of a 1/7 size model of the Grumman XJR2F-1 amphibian were made in Langley tank no.1 to examine the landing behavior in rough water and to measure the normal and angular accelerations experienced by the model during these landings. All landings were made normal to the direction of wave advance, a condition assumed to produce the greatest accelerations. Wave heights of 4.4 and 8.0 inches (2.5 and 4.7 ft, full size) were used in the tests and the wave lengths were varied between 10 and 50 feet (70 and 350 ft, full size). Maximum normal accelerations of about 6.5g were obtained in 4.4 inch waves and 8.5g were obtained in 8.0 inch waves. A maximum angular acceleration corresponding to 16 radians per second per second, full size, was obtained in the higher waves. The data indicate that the airplane will experience its greatest accelerations when landing in waves of about 20 feet (140 ft, full size) in length. |
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| Creator(s): | |
| Creation Date: | May 6, 1947 |
| Partner(s): |
UNT Libraries Government Documents Department
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| Collection(s): |
National Advisory Committee for Aeronautics Collection
Technical Report Archive and Image Library
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| Usage: |
Total Uses: 13
Past 30 days: 0
Yesterday: 0
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| Original Creation Date: | May 6, 1947 | |
| Description: | Tests of a 1/7 size model of the Grumman XJR2F-1 amphibian were made in Langley tank no.1 to examine the landing behavior in rough water and to measure the normal and angular accelerations experienced by the model during these landings. All landings were made normal to the direction of wave advance, a condition assumed to produce the greatest accelerations. Wave heights of 4.4 and 8.0 inches (2.5 and 4.7 ft, full size) were used in the tests and the wave lengths were varied between 10 and 50 feet (70 and 350 ft, full size). Maximum normal accelerations of about 6.5g were obtained in 4.4 inch waves and 8.5g were obtained in 8.0 inch waves. A maximum angular acceleration corresponding to 16 radians per second per second, full size, was obtained in the higher waves. The data indicate that the airplane will experience its greatest accelerations when landing in waves of about 20 feet (140 ft, full size) in length. |
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| Keyword(s): | aircraft design, testing and performance | |
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| Serial Title: | NACA Research Memorandums | |
| Partner: |
UNT Libraries Government Documents Department
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| Collection: |
National Advisory Committee for Aeronautics Collection
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| Collection: |
Technical Report Archive and Image Library
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| Resource Type: | Report | |
| Format: | Text | |
| Rights: |
Access:
Public
License:
Public Domain
Statement:
No Copyright, Unclassified, Unlimited, Publicly available
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