6. Conclusion and notes
V. ASSESSMENT
The primary rap against the CW-21 in some critiques is that it was lightly built and provided no fuel tank protection or effective armor. This is true but the same can be said for the Mitsubishi Zero that proved highly successful in early 1942. Moreover, many other Allied fighters entered combat in the Far East in 1941-1942 without adequate armor or fuel tank protection. Some aircraft that were rugged and well protected (e.g., the Hawker Hurricane) did not fare particularly well in these combats.
According to Casius "the CW-21 was superior in performance to the Hawk and B-339D." He suggests the CW-21B should have avoided dogfights with the Japanese fighters and suspects the reason this was not done was that "the Japanese opponents were greatly underestimated." It is certainly true that hardly anyone expected that the Japanese bombers that attacked Java from Borneo in early February 1942 would have land based fighter escorts.
Shores quotes Anaemet as saying Dutch pilots believed the CW-21B could out-climb the Zero but not out-turn it. The Hurricane could neither out-climb nor out-turn the Zero. Shores says the CW-21B had "a good rate of climb and maneuverability." He compares the CW-21 with the Curtiss Hawk, which he says was by no means a bad aircraft but simply surpassed "to some extent" in nearly every important performance category by its opponents.
The CW-21B was involved in few combats and those were often conducted under tactically unfavorable circumstances. Had its pilots had more time to learn the relative merits of their and the enemy's aircraft they might well have been able to use their CW-21Bs with more effect. The Hawk 75A fared poorly in the East Indies fighting but had done well in the early fighting over Europe and later did relatively well over Burma against the Japanese army's Type 1 fighter. With its metal ailerons the CW-21B probably had a higher role rate than
the Zero and Type 1 fighter at high speeds. Though unable to outturn the nimble Japanese fighters, it might have been able to reverse a turn more quickly. The technique of a steep climb followed by a wingover, used by Fausel against the I-15 over Chungking, might also have succeeded against the Japanese fighters. Anaemet used a somewhat similar maneuver, a "half-loop, half-roll into a formation and shot down the leader" on February 5th to claim his only victory. The CW-21B's combat career lasting a single month was undistinguished at best. The CW-21 might have proved a relatively effective fighting machine in early 1942 had there been additional time
and opportunity to engage the enemy.
NOTES
General notes and photo credits. The author acknowledges the help of James Broshot, Esq., D.Y. Louie, and James Sawruk in preparing this article.
Patrouille, Afdeeling, and Vliegtuiggroep have been rendered as flight, squadron and flying group in the text. Hiko Sentai and Kaigun Kokutai have been presented, respectively, as Flying Regiment and Air Group.
The images used in this article have been assessed as being in the public domain. However, some of them have been published on the Internet with copyright notices. Readers are advised that there may be claims of copyright to the images. A request to delete any of the images published here will be honored if a legally valid copyright can be verified.
Photos and profiles with Chinese language markings are from the
Insignia of China website via D.Y.
Louie. Photos with N.E.I. markings are from "Curtiss Wright CW-21B" at the
IPMS Nederland website . Pawley's photograph is from the site given in note 5. The Java map is from the official history of the Army Air Forces.
Text notes:
1. "Sale and Manufacture of American Aircraft in China - Differences Between Colonel C.L.Chennault and Intercontinent Corporation," letter, American Consulate General in Hong Kong (A.E. Southard) to Secretary of State, Feb. 9, 1939.
2. Military Attaché, Chungking, Report No. 8919, Sept. 25, 1934 (hereafter M/A Report). Letter, Pawley to Chennault, Jan. 31, 1939
3. Roye, Janardhan. "On the Wings of a Dream." Deccan Herald, Feb. 6, 2005.
4. id.
5. "William Pawley" (biography). Visited at Spartacus Schoolnet website
(Mar. 2005)
6. Letter (note 2).
7. Casius, Gerard. "The St. Louis Lightweight." Air Enthusiast/Sixteen, 1983, p.33. Casius implies George Page, Vice President, Engineering, St. Louis Division, Curtiss-Wright Corp., was the moving force behind development of the CW-21. This may be true from an engineering perspective, while Pawley was the entrepreneurial father of the project. Actual development was headed by Willis Wells, chief engineer, St. Louis Division.
8. Memorandum, Dept. of State, Division of Controls (J.L.Green), Sep. 13, 1939.
9. Casius (note 7), p.34.
10. Examples: Green, Warplanes of the Second World War - Fighters, Vol. IV. Doubleday, Garden City, N.Y., 1961, p.76, and
Taylor, Combat Aircraft of the World, Putnam, New York, 1969, p. 480. Casius (note 7) erroneously states the CW-21 prototype mounted two .50 caliber machine guns.
11. Green and Taylor, ibid.
12. Jane's All the World's Aircraft, 1945/46. Sampson, Low & Marston Co., London, 1946, p.315.
13. Green, op. cit.
14. M/A Report No. 9772, June 16, 1939.
15. Casius (note 7), p.38.
16. id.
17. Whelan, Russell. The Flying Tigers. Viking Press, New York, 1942, pp. 26-27.
18. Churchill, Winston. Their Finest Hour. Houghton Mifflin, Boston, 1949, p. 497.
19. Whelan (note 17) ibid.
20. Ford, Daniel. Flying Tigers. Smithsonian Institution Press, Washington, 1991, p.42.
21. Ford op. cit., pp. 37,52.
22. Dept. of State, Memorandum of conversation, no subject, Mr. Hiss and Mr. Pawley, March 11, 1941. Also Brady to Secretary of State, letter (no subject), April 12, 1941 (Consul's memorandum).
23. Note 3, op. cit.
24. Ford (note 20), p. 88. Casius (note 7), p.36, states the CW-21s were assembled and test flown at Rangoon in 1940. This is unlikely since the British did not permit assembly of military aircraft destined for China to take place at Rangoon at that time. Moreover, a telex from the U.S. Consul at Rangoon (sent on behalf of Chennault) to Lauchlin Currie, dated September 26, 1941 mentions "three CW-21 interceptors which are available in Rangoon from Inter-Continent Corporation being ready for immediate assembly."
25. E-mails from D.Y. Louie (12 & 13 March 2005) citing Zhong Guod Jun (C.A.F. magazine) Taipei, Taiwan. Photograph in Ward, Curtiss P-40D - N Warhawk In USAAF - French and Foreign Service (Aircam Aviation Series No. 7), Osprey, Canterbery, England, no date (18th unnumbered page).
26. "First Aircraft Factory of Commission on Aeronautical Affairs." Letter from Consul, Kunming (Troy L. Perkins) to Secretary of State, received May 26, 1942.
27. Casius (note 7), p.34.
28. Casius (note 7), p. 35; M/A Report No. 9755, Apr. 7, 1939. The Military Attaché (Stilwell) specifically mentions the prospects of Japanese raids on Chungking, stating none have occurred recently [the last previous was in Jan. 1939; when raids resumed in May they were carried out by Japanese navy bombers not Japanese army BR-20s]. Same report summarizes Chinese press reports on Japanese air raids, none of which is near Chungking.
29. M/A report (note 14).
30. Ford (note 24), ibid.
31. Ford (note 20), pp. 104, 138-9. The author follows Whelan and Casius in rendering Mangleberg's first name as Lacey rather than Lacy as in Ford.
32. Ford (note 20), pp. 138-9.
33. Casius (note 7), p. 38.
34. Shores, Cull & Izawa. Bloody Shambles Vol. I. Grub Street, London, 1992. p. 60.
35. A CINC American British Dutch Australian (ABDA) Area message of March 2nd mentions "ten Curtiss interceptors" available. The received version of this message (received 4 a.m. March 3rd) has a question mark behind the ten. Either the number was garbled in transmission or the reference is to both Hurricanes and CW-21Bs of 2-VlG-IV (Dutch Hurricanes are not separately mentioned in the message). The author does not accept this message at face value (contrary to Casius, note 7, p. 65).