Path: utzoo!utgpu!attcan!uunet!husc6!bu-cs!encore!maxzilla!kaufman From: kaufman@maxzilla.Encore.COM (Lar Kaufman) Newsgroups: rec.birds Subject: Re: W.S.J. article: army's use of birds Message-ID: <4119@encore.UUCP> Date: 7 Nov 88 15:17:05 GMT References: <56200001@uxe.cso.uiuc.edu> Sender: news@encore.UUCP Reply-To: kaufman@maxzilla.UUCP (Lar Kaufman) Organization: Encore Computer Corp, Marlboro, MA Lines: 23 In article <56200001@uxe.cso.uiuc.edu> richman@uxe.cso.uiuc.edu writes: >Did anyone else catch the story in Wed. Nov. 2nd Wall Street >Journal about the new army helicopter. Seems that they have >developed a new helicopter engine which was "tested" by tossing >live birds into it to insure it wouldn't stall. Any comments? >Mike Richman Mike, I didn't read the article, so I cannot comment on the particular thing you are citing. However, all aircraft engines are tested for resistance to bird strike damage as part of the FAA certification process. The tests do not use live birds. In fact, they use commercially obtained fowl that would have otherwise become someone's dinner. The birds are fired at the intakes of the turbine engine as it develops full rated power, using a pneumatic cannon. The engine must continue to produce a substantial amount of power after ingesting the bird(s). Nothing inhumane in this, and although the applicability of the test to real conditions of use might be challenged, the procedure has resulted in significant strengthening and redesign of a number of modern aircraft engines. -lar Lar Kaufman <= my opinions Fidonet: 1:322/470@508-534-1842 kaufman@multimax.arpa {bu-cs,decvax,necntc,talcott}!encore!kaufman