Estimate of hull-weight change with varying length-beam ratio for flying boats Page: 3 of 11
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NACA R M Nco L724
.L length o ftorebPdy
La length of afterbdy
L length of tall extenesiol
L f L La LL
w unit weig-t of water
W grss weight of seaplane
DESCORITION OF MODELS
P'cur models which were designed by the Kydroynamics Division of
nthe National Advisory Committee for Aeronautics have been considered.
The values in the following table are in inch and pound units for a -scale
mdel. The models have been designed to have the same spray characteristics
The height of hull has been held constant0 The ratio of foretod length
to a'terbody length is constant. The length from the step tt the tall
La 4 L is held constant. The bottom shape of the models is similar
so tirL he same dead-rise angle occur at the same relative hall
stabLin on each model.
6 9 12 1)
44,58 51.04 56,17 60.51
La 32,87 37.64 41o42 44.62
Lt 32.74 27.97 24.19 20 99
L 77.05 88.68 97.59 105,13
L' 110.19 116.65 121,78 126.12
B 12.91 9.85 8.13 7301
B 20.0 20.0 20.0 20.0
S.,/La 1.36 1.36 1.36 1>36
W 65 65 65 65
0 o.82 1.85 3.29 5.22
NAZA model no. 213 203 214 224
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Benscoter, Stanley U. Estimate of hull-weight change with varying length-beam ratio for flying boats, report, August 14, 1947; (digital.library.unt.edu/ark:/67531/metadc58073/m1/3/: accessed May 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.