Transactions Society Naval Architects and Marine Engineers, Vol. 2g, 1921. Plate 33 



To illustrate paper on "Calculation of the Transz'erse Strength of Submarines by Marbec's 

 Method," by Professor William Hovgaard, Member. 



TABLE n. 



TABLE I. 



CENTER or SRAVITY OT FLCXIBUJTY MASS. 



CHARACTERISTICS OF FRAME . 



(aEC CURVES - PLATE S7 .) 



(set MIDSHIP afcTtON - PLATE3S) 



AREA UnOER FLEWBILITV C««WC Z2a.9fl *a.lH5, 



AREA UNDER VEtlTlCAL MOMENT CUnVC I I l.l£ " • 



AREA. UNOFft HORIZONTAL MCMtNT CUUVE -!■» • • 



5CALC FACTOR"* 



m vAV or CNfiiNC. 



ABOVE BASE 



FROH CENTER Lttir 



poaiTiow OP Cf&. rmuwLiTy mass 



I . la ■ I 





AS.7 



TABLE -BL 



PRINCIPAL A)l.ES OF INERTIA , FLEXJBILITY MASS 

 (see cuRvrs - flatc j&. ) 



I,./,;*- 



1* =/'.'<'i" 



Z.-/M 



TABLE H 



COOROINATrS or CENTER AND RADIUS OF NODAL CIRCLE 



( sec CillVE* - PtATE39.) 

 (for nodal circle see PLATE 36j 



2/*'Jm 



I,. ^V/" 



•' J'drn. 



AKCA UNDER I, 

 AREA UNDER 1^ 

 AREA UNDER Z. 



CURVE 

 CURVE 

 CURVE 



tan ze - 



30.41 54. INS. 

 70,36 • • 

 ♦ t30 - • 



£ ■» 2.30 



SCALE FACTtR* I 



30.4E - 70. »6 



• . 3- n' 



Z- 29.43 



-. _ .35.9? 



>29.56'>.0I 



i' - .00 *■ 4.09 f- 45-97 ■ 50.06 



i.-'TJlT INS. ON QRAWING — FULL SIZE " 4Z.4tz INS. 



PF />,X,AND)ARE MCAMRCO IN INCHES ON PLATE36 . 



--2.0£ INS. 



