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2003 Bones Search II

Moleski — Tue, 31 Mar 2026 05:41:47 GMT

Narratives

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	== Narratives ==		== Narratives ==
	* [http://tighar.org/Projects/Earhart/Archives/Research/Bulletins/42_FijiBoneSearch.html Fiji Bone Search II--Final Report] (article on TIGHAR website)		* [http://tighar.org/Projects/Earhart/Archives/Research/Bulletins/42_FijiBoneSearch.html Fiji Bone Search II--Final Report] (article on TIGHAR website)
	* [~~http~~:~~//www.companysj.com/v223/amelia.htm~~ "Amelia and Roger and Me,"] ''Company Magazine.''		* [Dead link: "Amelia and Roger and Me,"] ''Company Magazine.''

	== Background ==		== Background ==

Randall S. Jacobson, Ph.D.

Moleski — Sat, 28 Mar 2026 20:37:54 GMT

Radio equipment on NR16020

Moleski — Tue, 17 Mar 2026 20:48:22 GMT

Direction finding receiver

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	== [[Direction finding]] receiver ==		== [[Direction finding]] receiver ==

	The [[Hooven Radio Compass]] was installed for a short time, but was removed and replaced by the [[loop antenna]] to save weight.<ref>[[Hooven]]</ref> [~~http~~://tighar.org/Projects/Earhart/Research/Bulletins/53_MiamiPhoto/53_MiamiPhoto.htm Careful analysis of photographs that can be dated] suggests that after the Hooven Radio Compass was removed, no other receiver took its place.		The [[Hooven Radio Compass]] was installed for a short time, but was removed and replaced by the [[loop antenna]] to save weight.<ref>[[Hooven]]</ref> [https://tighar.org/Projects/Earhart/Archives/Research/Bulletins/53_MiamiPhoto/53_MiamiPhoto.htm Careful analysis of photographs that can be dated] suggests that after the Hooven Radio Compass was removed, no other receiver took its place.

	== References ==		== References ==

Hooven Radio Compass

Moleski — Mon, 16 Mar 2026 20:30:07 GMT

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	The Hooven [[direction finding]] receiver was installed on top of the fuel tanks on the starboard side just behind the cockpit bulkhead. It was gone by February 1937.		The Hooven [[direction finding]] receiver was installed on top of the fuel tanks on the starboard side just behind the cockpit bulkhead. It was gone by February 1937.

	:"A Bureau of Air Commerce inspection dated November 27, 1936 describes a Bendix Radio Compass "rear of copilot's seat in cabin" (as shown in the photo). Hooven later alleged that Earhart ditched his system for a more primitive system in order to save weight. His claim is corroborated by photos that show that the distinctive faired-over loop of the Hooven system disappears in early 1937 about the same time the loop first appears. The Bureau of Air Commerce inspection done when the airplane came out of repair on May 19, 1937 makes no mention of a second receiver." [[Ric Gillespie]], 28 February 2009 [[AESF\| Forum]].		:"A Bureau of Air Commerce inspection dated November 27, 1936 describes a Bendix Radio Compass 'rear of copilot's seat in cabin' (as shown in the photo). Hooven later alleged that Earhart ditched his system for a more primitive system in order to save weight. His claim is corroborated by photos that show that the distinctive faired-over loop of the Hooven system disappears in early 1937 about the same time the loop first appears. The Bureau of Air Commerce inspection done when the airplane came out of repair on May 19, 1937 makes no mention of a second receiver." [[Ric Gillespie]], 28 February 2009 [[AESF\| Forum]].

	* [http://www.tighar.org/Projects/Earhart/Archives/Documents/Hooven_Report/HoovenReport.html The Hooven Report.]		* [http://www.tighar.org/Projects/Earhart/Archives/Documents/Hooven_Report/HoovenReport.html The Hooven Report.]

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	From [[Amelia Earhart's Shoes\| ''Shoes'']]: "Dr. Randal S. Jacobson is a geophysicist with the U.S. Navy, currently working on airborne mine hunting and mine countermeasure systems. Jacobson has a Ph.D. in oceanography/earth sciences from Scripps Institute of Oceanography, taught geophysics at Oregon State University, and was a program officer in geophysics at the Office of Naval Research, responsible for evaluating and funding proposals. He has written extensively on underwater seismic propagation, evolution of oceanic crust, and was the state seismologist for Oregon in the 1980s. His work has involved going to sea, using sonar, magnetometers, ocean bottom seismometers, and other geophysical systems. He is an avid historian, and enjoys restoring classic cars."		From [[Amelia Earhart's Shoes\| ''Shoes'']]: "Dr. Randal S. Jacobson is a geophysicist with the U.S. Navy, currently working on airborne mine hunting and mine countermeasure systems. Jacobson has a Ph.D. in oceanography/earth sciences from Scripps Institute of Oceanography, taught geophysics at Oregon State University, and was a program officer in geophysics at the Office of Naval Research, responsible for evaluating and funding proposals. He has written extensively on underwater seismic propagation, evolution of oceanic crust, and was the state seismologist for Oregon in the 1980s. His work has involved going to sea, using sonar, magnetometers, ocean bottom seismometers, and other geophysical systems. He is an avid historian, and enjoys restoring classic cars."

	* [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Phoenixislands.html The American Equatorial and Phoenix Islands.]		* [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Phoenixislands.html The American Equatorial and Phoenix Islands.]
	* [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/prepdepart.html The World Flight, First Attempt: Oakland to Honolulu--Preparations, Departure, Navigation en route.]		* [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/prepdepart.html The World Flight, First Attempt: Oakland to Honolulu--Preparations, Departure, Navigation en route.]
	* The World Flight, Second Attempt		* The World Flight, Second Attempt
	** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/2ndattemptcommo.html Communications and Coordination.]		** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/2ndattemptcommo.html Communications and Coordination.]
	** The Final Flight		** The Final Flight
	*** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/reconstruction.html Reconstructing the Flight.]		*** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/reconstruction.html Reconstructing the Flight.]
	*** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/finalflight1.html Part1: Lae to Midpoint.]		*** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/finalflight1.html Part1: Lae to Midpoint.]
	*** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/finalflight2.html Part 2: Midpoint to the Vicinity of Howland.]		*** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/finalflight2.html Part 2: Midpoint to the Vicinity of Howland.]
	*** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/finalflight3.html Part 3: At Howland Island.]		*** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/finalflight3.html Part 3: At Howland Island.]
	*** [http://tighar.org/Projects/Earhart/Research/ResearchPapers/Worldflight/finalflight4.html Part 4: The Aircraft Returns to Earth.]		*** [http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Worldflight/finalflight4.html Part 4: The Aircraft Returns to Earth.]
	*** [[Monte Carlo Simulation of Flight]]		*** [[Monte Carlo Simulation of Flight]]
	* The 1937 search for the lost aircraft		* The 1937 search for the lost aircraft
	** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/first24hours.html The First 24 hours.]		** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/first24hours.html The First 24 hours.]
	** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Itascasearch.html The ''Itasca'' Search.]		** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Itascasearch.html The ''Itasca'' Search.]
	** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Coloradosearch.html The ''Colorado'' Search.]		** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Coloradosearch.html The ''Colorado'' Search.]
	** [http://www.tighar.org/Projects/Earhart/Research/ResearchPapers/Lexingtonsearch.html The ''Lexington'' Search.]		** [http://www.tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/Lexingtonsearch.html The ''Lexington'' Search.]
	==Related==		==Related==
	* [[Air Navigation: State of the Art in 1937]]		* [[Air Navigation: State of the Art in 1937]]