NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Navigation IFN
From: Antoine Couëtte
Date: 2026 Feb 27, 10:20 +0100
Dear Andrés,
Wonderful ! and Thank you so much.
I once had access to a full set of the earlier "IFN Navigation" publications (up until # 122 covering the years (1953 - 1983) - hence I most certainly missed [quite] a few interesting topics published afterwards - and from which I had retained and kept the following paper "earlier" issues:
Thanks again, and
Best Friendly Regards,
Antoine
*******
From: Antoine Couëtte
Date: 2026 Feb 27, 10:20 +0100
Au RSL, le 27 Février 2026
Dear Andrés,
Wonderful ! and Thank you so much.
I once had access to a full set of the earlier "IFN Navigation" publications (up until # 122 covering the years (1953 - 1983) - hence I most certainly missed [quite] a few interesting topics published afterwards - and from which I had retained and kept the following paper "earlier" issues:
- # 55 : (P 319) Space Navigation Fix during a trip between Earth and Moon... and Yes, the " isoazimuthal LoPs " are covered in # 117.
- # 56 : (P 449) Angular Momentum in Space Navigation
- # 80 : (p 375) Fix from Heights rising velocities
- # 94 : (p 193) The OMEGA station in La Réunion Island & (P 222) Principles of the Lunar Distances methods
- # 114 : (p 221) Polar Orientation Azimuth Computer
- # 117 : (p 81) Azimuth LOP's onboard SSBN's
- # 121 : (p 39) Kalman Filtering on LOP's , (p 47) Integrated Navigation Celnav and (p 105) CelNav Suitability of the HP41 Calculator, which I had identified just a couple of years earlier as soon as the HP41 appeared on the Market.
- # 122 : (p 193) Royal Navy integrated Navigation system as well as a few other interesting topics
- # 205 : (p 39) Own Copy courtesy (Fall 2009) of late M. Yves Robin-Jouan, Former NavList Member and Contributor : A Treatment of Singularities with Astronomical Fix using the Method of Coplanar Vertices
Thanks again, and
Best Friendly Regards,
Antoine
*******
Le 27/02/2026 à 08:17, Andres Ruiz a
écrit :
My dear friend Antoine Couëtte will be happy,
All the numbers of Navigation (Paris) Institut français de navigation, are available for free at https://gallica.bnf.fr/ark:/12148/cb34348918r/date&rk=236052;4
Years ago we exchanged information that appeared in this publication about isoazimuthal LoPs.
--
Fair winds and following seas.






