Table 1

Geography of the Philippines

The Philippine Islands consist of about 1,500 islands, arranged generally in a north-south orientation,
to the south of Taiwan, or "Formosa," as it was known to Americans in the 1940s.

Luzon is the northernmost large island in the Philippines
Manila The capital of the Philippines, is located on Manila Bay on the southwest coast of Luzon, about 500 miles from Formosa.
Manila The capital of the Philippines, is located on Manila Bay on the southwest coast of Luzon, about 500 miles from Formosa.
Intramuros Spanish for "in the walls," the old city around which Manila grew and the site of General MacArthur's headquarters.
Cavite Naval Base is on Manila Bay
Corregidor is a fortified island in Manila Bay
Nielson Field The headquarters of the Far East Air Force (FEAF) and 5th Interceptor Command and location of the Aircraft Warning System (AWS). Nielson was close to the southern border of 1941 Manila.
Nichols Field South of Nielson, but still less than 10 miles from the border of 1941 Manila. The 17th and 21st Pursuit Squadrons (PSs) were based at Nichols.
Clark Field The most important FEAF operational base, about 60 miles north of Manila. Headquarters of the 24th Pursuit Group (GP), the 20th PS and the B-17-equipped 19th Bomb Group (BG)
Iba Field on the coast of the South China Sea, about 37 miles to the west of Clark and home of the 3rd PS.
Del Carmen Field the home of the 34th PS is 15 miles south and a little west of Clark.


Table 2

Abbreviations

AAF (United States) Army Air Force
AWS Aircraft Warning System
FEAF Far East Air Force
USA United States Army
USAFFE United States Army Forces in the Far East


Table 3

U.S. Army Air Force Tactical Aircraft in the Philippines, December 1941

At Clark Field and other airbases on Luzon

Aircraft number of aircraft "in commission" from Watson [1] number of aircraft from Bartsch (2003) [2]
B-17 17 [3] 19
B-18 no entry 13
P-35A 18 26
P-40B 18 24
P-40E 54 47


At Del Monte on Mindanao
Aircraft number of aircraft "in commission" from Watson number of aircraft from Bartsch (2003)
B-17 16 16
B-18 no entry 2


[1]. Watson, pp. 201-202.

[2]. Bartsch, W. H. December 8, 1941: MacArthur's Pearl Harbor. [College Station: Texas A & M University Press, 2003] "Appendix C," p. 427.

[3]. Watson at p. 201, "the Far East Air Force had in commission thirty-three B-17's, of which sixteen were at Del Monte." Evidently, two of the 35 B-17s in the Islands were not "in commission."