o Kui lennukis tulekahju siis tuleb koheselt sulgeda kütuse kraan o Kahe paagilistel on o Kui on pöörangud siis kulub ühes paagis rohkem kütust kui teisel o Suurtel lennukitel vesi nii suureks probleemiks pole, o Ohtlik on kui turboreaktiivmootorisse satub suur kogus vett ja korraga o Pumbad: Enamasti kasutatakse turbiintüüpi pumpa, kasutatakse ka tsentrifugaaltüüpi pumpa o Crossfeed system risttoite klapp o Jettison süsteem võimaldab kütust välja lasta lennukist o Lämmastik ei lase süttida o Osa kütust juhitakse lennuki tagaossa, lennuki trimmimiseks o Boeing 787 stabilisaatorisse on võimalik kütust pumbata o Kütusetorustik, mis läbib survestatud kereosa peab olema kahekordne. o Ujukiga kütusenäidik o Mahtuvuspõhiline mõõdik: vastavalt kütusetaseme muutmisele
classroom integration. For instance, although white students' achievement levels re- main steady, it is lO times more likely that the academic performance of minority students will significantly increase rather than significantly decline after desegrega- tion (Stephan, 1978). We must be cautious in our approach to school desegregation so that we do not throw out the baby with the bath water. The idea, of course, is to jettison just the water, leaving the baby shining from the bath. Right now, though, our baby is soaking in the Schmutzwasser of increased racial hostility. Fortunately, real hope for draining away that hostility is emerging from the research of education specialists into the concept of "cooperative learning." Because much of the heightened preju- dice from classroom desegregation seems to stem from increased exposure to out- side group members as rivals, these educators have experimented with forms of
) Albert L. David, leading the boarding party, and petty officers Arthur K. Knispel and Stanley E. Wdowiak slipped through the hatch, raced forward to the radio room, smashed open a couple of lockers, and grabbed the cryptographic equipment—the current codebook with superenci-pherments, the Enigma machine and its list of keys, and hundreds of messages with parallel plaintexts and cipher-texts. The Germans had apparently never considered the possibility of a boarding and so had not bothered to jettison the material. The three Americans hastily passed the items up on deck so that the team would have something to show for its efforts even if it lost the sub. But within fifteen minutes, the team had disconnected demolition charges and shut off an eight-inch stream of water, and U-505 had become the first enemy warship captured by a U.S. Navy boarding party since the War of 1812. The Allies now read U-boat operational traffic. For they had, more
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