‘Navigational Aspects of Turboprop Operation on the North Atlantic’

The first equation displayed in Appendix A to Mr. J. E. D. Williams's paper (Vol. X, p. 44) should have read:

Bibliographic Details
Published in:Journal of Navigation
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1957
Subjects:
Online Access:http://dx.doi.org/10.1017/s0373463300016659
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0373463300016659
Description
Summary:The first equation displayed in Appendix A to Mr. J. E. D. Williams's paper (Vol. X, p. 44) should have read: