. The aviation pocket-book for 1918; a compendium of modern practice and a collection of useful notes, formulae, rules, tables and data relating to aeronautics . Plate inclinedat 45^. Centre of Pressure on Inclined Planes.—The most reliable resultsare shown in the following curves :— e 1 -20 c 5?? J:- i ^ l f -* ^ ^ ^^ ^ ^ 90* 60 70° 60 50 40 30^ 20 iO An^ie of Inclinalion h air current Centre of Pressure on Inclined Plates (Kummer, Langley,Finzi and Soldati, Dines). The following formuhe have been proposed :— ]. By Joessel, from his experiments on plates immersed inMater— .r = 0-3[l-sin a], ■
. The aviation pocket-book for 1918; a compendium of modern practice and a collection of useful notes, formulae, rules, tables and data relating to aeronautics . Plate inclinedat 45^. Centre of Pressure on Inclined Planes.—The most reliable resultsare shown in the following curves :— e 1 -20 c 5?? J:- i ^ l f -* ^ ^ ^^ ^ ^ 90* 60 70° 60 50 40 30^ 20 iO An^ie of Inclinalion h air current Centre of Pressure on Inclined Plates (Kummer, Langley,Finzi and Soldati, Dines). The following formuhe have been proposed :— ]. By Joessel, from his experiments on plates immersed inMater— .r = 0-3[l-sin a], ■t^M distance of CP. from centre of plate Where .r= , — —t——. lengtli ot mclnied side of plate 22 AIR PRESSURE AND RESISTANCE [div. 2. ByThiesen— x = (y2 3. By Soreau— COS a1 +sin a* 1 4[l+2tan a] This formula of Soreaus agrees very well with tlie results foundby Langley and Dines up to an incliiiation of 20°, but is proljablyinaccurate for larger inclinations. •30 ^ A ^ o ^^ •25 •20 15 5 S -10 05 I 90 70° 50° 30 lO** 0 4nf>le of inclinafion to air current Centre of Pressure on Iiifliiicd Plates (Rateau). Div. l1 PRESSURE ON INCLINED SURFACES
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectaeronautics, bookyear
