43 



TRANSLATIONS 



13. Recording High Frequency Vibrations by the Scratch Process [Aufzeichnen 

 schneller Schwingungen nach dem Ritzverfahren] , by Wilhelm Pabst. VDI- 

 Zeitschrift, Vol. 73, No. 46, Nov 1929, pp. 1629-1633. Translated by 

 M.C. Roemer. Feb 1936. 14 pp., 14 figs. 



15. The Betz-Prandtl Vortex Theory of the Screw Propeller As Adapted to the 



Technical Method of Calculation [Die Betz-Prandtlsche Wirbeltheorie der 

 Treibschraube und ihre Ausgestaltung zum technischen Berechnungsverfah- 

 ren], by H.B. Helmbold. Werft-Reederei-Hafen, Vol. 7, 1926, pp. 565-569, 

 588-595. Translated by M.C. Roemer. Feb 1936. 35 pp., 13 figs. 



16. Welding in Shipbuilding [Schweissen im Schiffbau] , by Hermann Lottmann. 



Schiffbau, Schiffahrt und Hafenbau, Vol. 33, Nos. 13, 14, 15, and l6, 

 1932, pp. 3-31 (reprint). Translated by M.C. Roemer. Unpublished. 



Hough draft of text in TMB Translation Section'. 



17. The Problem of Strength in Any Direction in Shipbuilding [Das Raumfestig- 



keitsproblem im Schiffbau], by Dr.-Ing. Gustav Wrobbel. Jahrbuch der 

 Schiffbautechnischen Gesellschaft, Vol. 28, 1927, pp. 447-492. Trans- 

 lated by M.C. Roemer. Unpublished. Rough Draft in TMB Translation Section. 



18. Studies of Propeller Sections with Reduced Susceptibility to Cavitation 



[Untersuchungen iiber Propellerprofile mit herabgesetzter Kavitations- 

 Empfindlichkeit], by H. Holl. Technische Mechanik und Thermodynamik, 

 Forschung auf dem Gebiete des Ingenieurwesens, Vol. 3, No. 3, May -Jun 

 1932. Translated by M.C. Roemer. Feb 1936. 20 pp., 22 figs. 



19. Analysis of Propeller Tests [Auswertung von Schraubenversuchen] , by Prof. 



Dr.-Ing. H. Horn. Schiffbau, Schiffahrt und Hafenbau, Vol. 36, No. 18, 

 15 Sep 1935 (reprint). Translated by M.C. Roemer. Feb 1 936. 33 pp., 7 

 figs. 



20. Experimental and Theoretical Investigation of Cavitation in Water [Expe- 



rimentelle und theoretische Untersuchungen iiber Hohlraumbildung 

 (Kavitation) im Wasser], by J. Ackeret. Technische Mechanik und Thermo- 

 dynamik, Vol. 1, No. 1, Jan 1930, pp. 1-22, 63-72. Translated by M.C. 

 Roemer. Feb 1936. 85 pp., 39 figs. 



21. Tests of Sections under Cavitation [Profilmessungen bei Kavitation], by 



Otto Walchner. Hydromechanische Probleme des Schiffsantriebs, Hamburg, 

 1932, pp. 256-267. Translated by M.C. Roemer. Feb 1936. 19 pp., 8 figs. 



22. Cavitation [Kavitation - Hohlraumbildung], by J. Ackeret. Handbuch der 



Experimentalphysik, Vol. 4, Part 1, pp. 463-486. Translated by M.C. 

 Roemer. Jun 1933- 22 pp., 30 figs. 



23. Results of Measurements on Propeller Sections [Ergebnisse von Messungen 



an Propellerprof ilen] , by G. Flugel. Technische Hochschule, Danzig, pp. 

 315-321. Hydrodynamische Probleme des Schiffsantriebs, Hamburg Congress 

 1932. Translated by R.C. Darnell. Jun 1933- 6 pp. , 6 figs. 



24. Cavitation Limits According to Series Tests [Kavitationsgrenzen Nach Se- 



rienversuchen], by Hermann Lerbs. Werft-Reederei-Hafen, Vol. l6, No. 

 22, 15 Nov 1935, PP. 338-340. Translated by M.C. Roemer. Jun 1936. 7 

 pp. , 3 figs. 



