![Efficient railway operation . Area: Head =3.80 sq. in 38.2% Web =2.25 22.6% Base =3^ 39.2% Total =9.95 100.0% Moment of Inertia 49.0 Section Modulus—Head 15.1 Base 17.8 Ratio M. I. Efficient railway operation . Area: Head =3.80 sq. in 38.2% Web =2.25 22.6% Base =3^ 39.2% Total =9.95 100.0% Moment of Inertia 49.0 Section Modulus—Head 15.1 Base 17.8 Ratio M. I.](https://c8.alamy.com/comp/2CGYWAJ/efficient-railway-operation-area-head-=380-sq-in-382-web-=225-226-base-=3-392-total-=995-1000-moment-of-inertia-490-section-modulushead-151-base-178-ratio-m-i-t6-area-492-ratio-sec-mod-to-area-152-556-appendix-v-a-r-e-a-rail-sectionscontinuedsection-recommended-for-approval-a-r-a-110-lb-h-z-h-area-head-=-404-sq-inweb-=-249-base-=-429-3742303961000-total-=-1082-moment-of-inertia-570-section-modulushead-167-base-201-ratio-m-i-to-area-527-ratio-sec-mod-to-area-155-appendix-v-557-a-r-e-a-rail-sections-continuedsection-recom-2CGYWAJ.jpg)
Efficient railway operation . Area: Head =3.80 sq. in 38.2% Web =2.25 22.6% Base =3^ 39.2% Total =9.95 100.0% Moment of Inertia 49.0 Section Modulus—Head 15.1 Base 17.8 Ratio M. I.
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![Josh Hayes (#4) leads Ben Bostrom (#155) during the AMA Superbike race 1 at the Mid Ohio Race Course in Lexington, OH. Hayes went on to win the race. (Credit Image: © Josh Hayes (#4) leads Ben Bostrom (#155) during the AMA Superbike race 1 at the Mid Ohio Race Course in Lexington, OH. Hayes went on to win the race. (Credit Image: ©](https://c8.alamy.com/comp/DJGBJD/josh-hayes-4-leads-ben-bostrom-155-during-the-ama-superbike-race-1-DJGBJD.jpg)