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NOTES TO TABLE 16
This table presents detailed data on loss rates and flight activity for land-based aircraft in combat operations, for the years 1944-45 and in the Pacific only. The data are comparable with those for carriers given previously in Table 9.
Attention is invited to the low operational and overall loss rates for land-based planes, particularly for SBD, PBJ and PBY aricraft. Overall loss rates were influenced by the low losses to enemy action sustained by land-based aircraft, which made a large proportion of their attacks on lightly defended or undefended targets, with little airborne opposition in the period covered by this table. The higher loss rates for Navy planes of same types than for Marine planes of the same types are not especially significant: the Navy planes in these cases were frequently used in more demanding operations, and in any event the volume of Navy action in this period was relatively small.
It will be noted that land-based VF, VSB and VTB generally made far more flights per than carrier planes; about 25 per VF, 22 per VSB, 27 per VTB, compared with carrier averages of about 17, 11, and 15 respectively. Land-based planes of these types also flew more action sorties per month, over 6 per VF, 10 per VSB, 5 per VTB, as against 5, 6, and 6 respectively.
Patrol bombers, other than the Marine PBJs, averaged 10 to 12 flights per month; only from 6 to 17 percent of these resulted in action. PBJs, used primarily as short-range formation bombers, averaged 20 flights per month, 40 percent of which resulted in action.
Marine F6Fs were almost entirely night fighters, and flew a higher ratio of patrol to action flights than the F4U day fighters. Marine TBMs were also largely used for patrol work, as were the Navy SB2Cs in inshore patrol squadrons.
TABLE 16. LOSSES, LOSS RATES, AND OPERATIONAL DATA, LAND-BASED NAVAL AND MARINE AIRCRAFT, PACIFIC ONLY, 1944 - 1945 ONLY,By Service (Navy-Marine) and Plane Model |
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|
SERVICE, PLANE MODEL |
AIRCRAFT ON HAND (*) |
FLIGHTS, SQUADRONS IN ACTION |
ACTION SORTIES |
OWN LOSSES |
OWN LOSS RATES |
FLIGHTS |
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|
OPERATIONAL |
GROUND Per 100 Planes Per Month |
TOTAL Per 100 Planes Per Month |
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|
OPERATIONAL |
ON GR'D |
TOTAL, Including Enemy Action |
Per 100 Action Sorties |
Per 100 Other Fl' ts |
Per Plane Per Month |
Per Action Sortie |
|||||||
|
Action Sorties |
On Other Fl’ts |
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|
MARINE SQUADRONS |
13,873 |
346,342 |
102,324 |
189 |
523 |
90 |
1169 |
0.18 |
0.21 |
0.7 |
8.4 |
25.0 |
3.4 |
|
F4U, FG |
7,715 |
201,352 |
50,118 |
131 |
372 |
43 |
788 |
0.26 |
0.25 |
0.6 |
10.2 |
26.1 |
4.0 |
|
F6F |
511 |
11,038 |
1,646 |
3 |
27 |
5 |
42 |
0.18 |
0.29 |
1.0 |
8.2 |
21.6 |
6.7 |
|
FM # |
1 |
25 |
3 |
0 |
1 |
0 |
1 |
@ |
@ |
@ |
@ |
@ |
@ |
|
SBD |
3,115 |
69,526 |
35,341 |
33 |
51 |
25 |
173 |
0.09 |
0.15 |
0.8 |
5.6 |
22.3 |
1.7 |
|
SB2C, SBW |
418 |
13,796 |
2,023 |
3 |
13 |
0 |
17 |
0.15 |
0.11 |
0.0 |
4.1 |
33.0 |
6.8 |
|
TBF, TBM |
995 |
28,118 |
4,758 |
7 |
31 |
15 |
87 |
0.15 |
0.13 |
1.5 |
8.7 |
28.3 |
5.9 |
|
PBJ |
1,048 |
20,770 |
8,390 |
12 |
23 |
2 |
55 |
0.14 |
0.19 |
0.2 |
5.2 |
19.8 |
2.5 |
|
PBY # |
3 |
61 |
8 |
0 |
0 |
0 |
0 |
@ |
@ |
@ |
@ |
@ |
@ |
|
PV |
46 |
1,413 |
21 |
0 |
5 |
0 |
6 |
@ |
0.36 |
@ |
@ |
@ |
@ |
|
PB4Y |
21 |
243 |
16 |
0 |
0 |
0 |
0 |
@ |
0.00 |
@ |
@ |
@ |
@ |
|
NAVY SQUADRONS |
6,751 |
88,219 |
14,414 |
44 |
186 |
120 |
521 |
0.31 |
0.25 |
1.8 |
7.7 |
13.1 |
6.1 |
|
F6F |
362 |
707 |
1,868 |
12 |
13 |
4 |
41 |
0.64 |
0.22 |
1.1 |
11.3 |
21.3 |
4.1 |
|
F4U, FG |
109 |
2,123 |
742 |
2 |
4 |
0 |
19 |
0.27 |
0.29 |
0.0 |
17.3 |
19.5 |
2.9 |
|
FM |
18 |
242 |
25 |
0 |
1 |
0 |
1 |
@ |
0.46 |
@ |
@ |
@ |
@ |
|
SBD |
396 |
7,230 |
2,981 |
1 |
16 |
0 |
29 |
0.03 |
0.38 |
0.0 |
7.3 |
18.3 |
2.4 |
|
SB2C, SBW |
82 |
2,009 |
332 |
1 |
2 |
6 |
11 |
0.30 |
0.12 |
@ |
@ |
24.5 |
6.1 |
|
TBF, TBM |
128 |
2,421 |
1,157 |
3 |
4 |
3 |
16 |
0.26 |
0.32 |
2.3 |
12.5 |
18.9 |
2.1 |
|
PB4Y |
2,244 |
26,987 |
3,215 |
13 |
68 |
70 |
224 |
0.40 |
0.29 |
3.1 |
10.0 |
12.0 |
8.4 |
|
PV |
1,406 |
16,896 |
2,439 |
9 |
23 |
18 |
79 |
0.37 |
0.16 |
1.3 |
5.6 |
12.0 |
6.9 |
|
PBM |
730 |
7,672 |
506 |
1 |
33 |
9 |
59 |
0.20 |
0.46 |
1.2 |
8.1 |
10.5 |
15.2 |
|
PBY |
1,063 |
12,600 |
1,007 |
1 |
20 |
7 |
35 |
0.10 |
0.17 |
0.7 |
3.3 |
11.9 |
12.5 |
|
PB2Y |
213 |
2,332 |
142 |
1 |
2 |
3 |
7 |
0.70 |
0.09 |
1.4 |
3.3 |
10.9 |
16.4 |
|
GRAND TOTAL |
20,624 |
434,561 |
118,217 |
234 |
709 |
212 |
1693 |
0.20 |
0.22 |
1.0 |
8.2 |
21.1 |
3.7 |
|
* – In terms of plane-months; sum of aircraft reported on hard each month by squadrons in action. Where no suitable figure was reported for aircraft on hand, authorized complement was used. A monthly average strength in action can be obtained by dividing by 20. # – Attached to Hedrons. @ – Ratio not calculated; less than 100 action sorties, flights, or planes on hand. NOTE: 1481 action sorties by planes not identified as to branch of service are excluded from all figures in this table except the grand total. These are broken down by plane model as follows; 349 F4U, 28 F6F, 440 unidentified VF, 484 SBD, 137 TBF, 41 unidentified VPB. Also in the same category are 2 F4Us destroyed on ground, and 1 SBD lost operationally on an action sortie. |
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