Advanced search  
Pages: 1 [2] 3 4 ... 9   Go Down

Author Topic: Bob Ballard to search for Earhart plane  (Read 32414 times)

Greg Daspit

  • TIGHAR member
  • *
  • Posts: 750
Re: Bob Ballard to search for Earhart plane
« Reply #15 on: July 30, 2019, 09:40:00 AM »

This is exciting news and a big surprise.
Their expedition is already underway and is surveying several regions. The Nikumaroro area is scheduled for August 7 to August 25 . That’s next week so they are past planning stages.
Here is the link to the Nautilus tech
 https://nautiluslive.org/tech

The ROVs
Hercules:
A 4,000 meter depth ROV with manipulator arms
Imaging tech:
One high-definition video channel on fiber optic, four standard definition video channels on coax.

Lighting •Two Deep Sea Power & Light Matrix-3 LED lamps, 20,000 lumens, forward mounted
•Six to twelve Deep Sea Power & Light Sphere LED lamps, 6,000 lumens, mounting configurable
•SCALING | Two green Deep Sea Power & Light Micro Sea-Lasers, mounted 10 cm (3.94 inches) apart, HD camera only

Argus- A 6,000 meter depth towsled-style ROV that can work in tandem with Argus
Do they need to secure the ship the same as other expeditions with the Hercules capable of working in tandem with the Argus?
What lessons learned were passed along from the 2012 expedition? For example securing the ship to the Norwich propeller shaft and sharing videos of possible interest (2012 possible debris field).

Questions for the technical experts:
Is their High def camera capable of a live feed to ship? It says it is on fiber optic so I assume yes?
For comparison what amount of lumens were available on the ROV used in the 2012 expedition?
In layman’s terms what is the difference in Sonar Tech being used compared to the sonar used in the 2012 TIGHAR expedition?
3971R
 
Logged

Bill Mangus

  • TIGHAR member
  • *
  • Posts: 343
Re: Bob Ballard to search for Earhart plane
« Reply #16 on: July 31, 2019, 06:37:23 AM »

@ Ted Campbell:

Well said, sir.  Very well said!
Bill Mangus
Researcher #3054SP
 
Logged

Ted G Campbell

  • TIGHAR member
  • *
  • Posts: 343
Re: Bob Ballard to search for Earhart plane
« Reply #17 on: July 31, 2019, 11:46:45 PM »

Thank you Bill, where is Ric on this issue?
Ted
Logged

Leon R White

  • TIGHAR member
  • *
  • Posts: 171
Re: Bob Ballard to search for Earhart plane
« Reply #18 on: August 01, 2019, 06:00:45 PM »

Can anyone point me to the maps of the ROV dives?  Thanks!
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #19 on: August 03, 2019, 09:52:35 AM »

Thank you Bill, where is Ric on this issue?

I'm limited in what I can say by our agreement with National Geographic - but I'll remind you that this is not my first rodeo.
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #20 on: August 03, 2019, 10:16:46 AM »

Can anyone point me to the maps of the ROV dives?  Thanks!

The new TIGHAR Tracks will include an article titled "The Search So Far" - an overview and summary of all the underwater searching we've done at Niku to date.  Included is a map showing all the sonar targets identified in 2012 and the tracks of all the ROV dives.

The PDF TIGHAR Tracks should go out on Tuesday.  The print version will follow a few days later.
Logged

Leon R White

  • TIGHAR member
  • *
  • Posts: 171
Re: Bob Ballard to search for Earhart plane
« Reply #21 on: August 03, 2019, 10:49:59 AM »

Thanks for the update re: the upcoming 'tracks.' 

I think (hope) we all know that not only is this not your first rodeo, there wouldn't be a rodeo without your dogged persistence and the support of those key scientific folks that have joined you. I know its a team effort etc. but at this point I think it would be a great time for all of us to acknowledge our thanks for 30+ years of dedication, quality efforts, and guidance in TIGHAR.
   
There those who might not respect Miss Earhart, but they've got to respect your leadership of TIGHAR, and the results so far.  I do.
Thank you Ric (and Pat) for putting up with your own members. That too is a significant achievement.  And  I guess "thanks" go to the guys who first came to you and said "Hey . . ."

Leon
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #22 on: August 03, 2019, 10:50:46 AM »

In layman’s terms what is the difference in Sonar Tech being used compared to the sonar used in the 2012 TIGHAR expedition?

Based on publicly available information, the technology Nautilus uses has advantages and disadvantages compared to what we used in 2012.

• Nautilus's hull-mounted multi-beam sonar is better than KOK's, but I can't quantify how much better.  Multi-beam is useful for mapping the undersea topography (bathymetry) but its usefulness in searching for objects is a function of its resolution.  KOK's multi-beam did not have sufficient resolution to see something as small as even an intact Electra.
• The best tool for spotting targets is side-scan sonar but the steepness of the reef slope at Niku makes towed-array side-scan difficult.  Flying the "fish" parallel to the slope results in a fore-shortened image on the reef side while the ocean side sees only water.  In 2012 we used side-scan mounted on an AUV (Autonomous Underwater Vehicle) to fly up and down, rather than across the slope.  The AUV couldn't go deeper than 1,500 meters. We still had all kinds of problems but the area got covered. Nautilus uses towed-array side-scan sonar deployed from an ROV. Their ROVs can go much deeper than ours could. In theory, they'll have less capability than we had on the steep slope down to 1,500 meters but good capability at greater depths where the slope moderate.
•  ROVs (Remote Operated Vehicles tethered to the ship) with HD cameras are a good way to investigate sonar targets. In 2012 we used a fairly nimble medium-sized ROV but we still had to be super careful to avoid fouling the tether on the steep reef slope. The Norwich City wreckage at about 300 meters is an especially bad neighborhood.  Our ROV could only go to about 800 meters. Nautilus' ROVs can go to 4,000 and 6,000 meters respectively but they are much larger and might have a more difficult time on the shallower steep slope.

Bottom line: Nautilus might have trouble looking where we've already looked but they can look deeper than we could.
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #23 on: August 03, 2019, 10:58:40 AM »

Thank you Ric (and Pat) for putting up with your own members. That too is a significant achievement. 

The credit goes to all the members of TIGHAR who support us with talent, hard work, and hard cash.
You can't lead a cavalry charge if you don't have a horse.

And  I guess "thanks" go to the guys who first came to you and said "Hey . . ."

Indeed.  Sadly, Tom Willi and Tom Gannon are both gone now. 
Logged

Joy Diane Forster

  • TIGHAR member
  • *
  • Posts: 37
Re: Bob Ballard to search for Earhart plane
« Reply #24 on: August 05, 2019, 06:37:30 AM »

Ric,

Good summary/comparison of the ROV & sonar capability for the water search.

What can you tell us about the land archaeology?

Thanks.

TIGHAR Member #4239
 
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #25 on: August 05, 2019, 06:40:57 AM »

What can you tell us about the land archaeology?

Not much.  They've said they're going try again to find bones at the Seven Site using forensic dogs.
Logged

Leon R White

  • TIGHAR member
  • *
  • Posts: 171
Re: Bob Ballard to search for Earhart plane
« Reply #26 on: August 05, 2019, 10:34:54 AM »

I hope the Ballard team is prepared to put some of their focus on the sides of the reef.  I still think the evidence is there.  Good luck to all of them!
Logged

Greg Daspit

  • TIGHAR member
  • *
  • Posts: 750
Re: Bob Ballard to search for Earhart plane
« Reply #27 on: August 05, 2019, 12:10:52 PM »

I hope the Ballard team is prepared to put some of their focus on the sides of the reef.  I still think the evidence is there.  Good luck to all of them!

Agreed. Especially focus on the first 200-300ft deep shelf below the Bevington Object.  I hope they have good luck with the equipment and search.

This is one of the better articles I've seen.
https://www.news.com.au/lifestyle/real-life/true-stories/new-evidence-that-could-solve-the-mystery-of-famed-aviator-amelia-earharts-fate/news-story/0be4bf5ebb043851c98b88896c9afe58


3971R
 
Logged

Karen Hoy

  • TIGHAR member
  • *
  • Posts: 73
Re: Bob Ballard to search for Earhart plane
« Reply #28 on: August 05, 2019, 01:03:43 PM »

Good article, but the guy in the white shirt wasn't Fred Noonan.  ???

Karen Hoy 2610ER
Logged

Ric Gillespie

  • Executive Director
  • Administrator
  • *
  • Posts: 5563
  • "Do not try. Do or do not. There is no try" Yoda
Re: Bob Ballard to search for Earhart plane
« Reply #29 on: August 05, 2019, 01:25:49 PM »

Good article, but the guy in the white shirt wasn't Fred Noonan.  ???

Lots of other problems with that article.
Logged
Pages: 1 [2] 3 4 ... 9   Go Up
 

Copyright 2019 by TIGHAR, a non-profit foundation. No portion of the TIGHAR Website may be reproduced by xerographic, photographic, digital or any other means for any purpose. No portion of the TIGHAR Website may be stored in a retrieval system, copied, transmitted or transferred in any form or by any means, whether electronic, mechanical, digital, photographic, magnetic or otherwise, for any purpose without the express, written permission of TIGHAR. All rights reserved.

Contact us at: info@tighar.org • Phone: 610-467-1937 • Membership formwebmaster@tighar.org

Powered by MySQL SMF 2.0.15 | SMF © 2017, Simple Machines Powered by PHP