×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Pilots are killed when ejector seats activate before take-off

Pilots are killed when ejector seats activate before take-off

RE: Pilots are killed when ejector seats activate before take-off

That's not a great way to go for sure.

The french jet that launched an observer a few years ago, but not the pilot even though it was programmed to eject both, made it down to the ground, but the pilot got out of the cockpit very quickly in case it went off.

They are supposed to be very violent actions so you don't even want to try them out.

This https://www.youtube.com/watch?v=bRZllj8WS2g when you get to the end says the ejection force is 15 to 20G !!!. You might survive but will be a few inches shorter I think.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Pilots are killed when ejector seats activate before take-off

Quote:

when you get to the end says the ejection force is 15 to 20G

and maybe more if there's a roof...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

RE: Pilots are killed when ejector seats activate before take-off

well on the bright side , I cant remember the last time I saw anything in my local hardware store stating " Made in Iran"

RE: Pilots are killed when ejector seats activate before take-off

Dik;
15 to 20 Gs positive at the plane, more Gs negative at the roof.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

RE: Pilots are killed when ejector seats activate before take-off

The only item that I can recall ever personally buying that was likely from Iran were Pistachio nuts which were dyed red. When the Islamic revolution took hold in Iran in 1979 and they took the American hostages, the US banned the importation of most all products from Iran, including Pistachios (at the time, Iran was one of the largest suppliers of Pistachios in the world). Note that the reason why they were dyed red in the first place was because it made them look better and was a sort of marketing ploy, making them easily recognized. But when the decision was made to halt the importation of Iranian Pistachios, the suppliers of American grown Pistachios (most of which come from California) decided to stop dying the shells, again for marketing purposes, only this time the consumers were told that the natural (un-dyed) Pistachios were American grown.

John R. Baker, P.E. (ret)
EX-'Product Evangelist'
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

RE: Pilots are killed when ejector seats activate before take-off

Quote:

15 to 20 Gs positive at the plane, more Gs negative at the roof.

My error... you are correct... maybe a lot less of them at the roof...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

RE: Pilots are killed when ejector seats activate before take-off

Worse, (though I imagine the badness meter is already jammed so hard against the end stop, the victims can't tell the difference) it will potentially be a case of "base of spine still experiencing plus several g from the continuing thrust of the rocket motor while top of spine is simultaneously experiencing multiple negative g by virtue of contact with the roof.

Best way to work in a Fast Jet cockpit unless you're actually planning to start the engines is to get the plumbers to cart the seats away to their workshop and replace them with wooden stools. Got to be the only sort of furniture ever made where finding a nail sticking out of it makes you feel a little bit safer.

A.

RE: Pilots are killed when ejector seats activate before take-off

It's like the last thing that goes through a bug's mind when it hits the windscreen...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

RE: Pilots are killed when ejector seats activate before take-off

Quote:

When the Islamic revolution took hold in Iran in 1979 and they took the American hostages

I remember the good ol' days of the Shah... and what a great guy he was...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

RE: Pilots are killed when ejector seats activate before take-off

Quote:

and what a great guy he was

Unless, of course, you wanted the same Constitutional freedoms that his US supporters take for granted. If the US hadn't deposed Mosadegh in favor of the Shah and kept him under rein, Khomeini likely would never have gained sufficient power to inspire the revolution. In the end, it was the unintended consequence of US actions from 68 years ago.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Pilots are killed when ejector seats activate before take-off

Concur...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

RE: Pilots are killed when ejector seats activate before take-off

Quote:

In the end, it was the unintended consequence of US actions from 68 years ago.
I thought that it was a result of Big Oil negotiations running out of control.
The Shah wanted a fair price when the oil contracts were renewed, so Big Oil funded the Shah's opponents.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

RE: Pilots are killed when ejector seats activate before take-off

That might have been the impetus for Mossadegh's deposing by the CIA, but everything after that is fully on the US, since we backed the Shah's attempt to Westernize and secularize Iran.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Pilots are killed when ejector seats activate before take-off

And then the US turned on The Shah:

Quote:

"In November 1978, President Carter named the Bilderberg group's George Ball, another member of the Trilateral Commission, to head a special White House Iran task force under the National Security Council's Brzezinski.

"Ball recommended that Washington drop support for the Shah of Iran and support the fundamentalistic Islamic opposition of Ayatollah Khomeini. Robert Bowie from the CIA was one of the lead 'case officers' in the new CIA-led coup against the man their covert actions had placed into power 25 years earlier.

Quote:

"The coup against the Shah, like that against Mossadegh in 1953, was run by British and American intelligence..."
link

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

RE: Pilots are killed when ejector seats activate before take-off

zeusfaber there was a good piece from a lightning Engineer where they did remove the seats and put a fruit crate seat in.

He was doing engine runs on it and the brakes plus chocks failed. And he had his first and last flight solo in a Lightning. He managed to land it.

Looks like old age is catching up on me he had seats.

https://en.wikipedia.org/wiki/Holden%27s_Lightning...

http://www.nzrafaaa.dx.am/Halton%20Wheel%20Issue%2...

RE: Pilots are killed when ejector seats activate before take-off

That must have been a very errrr exciting incident.

To miss a fuel tracker, go underneath an aircraft landing and then can't stop the plane and needing to take off takes some amount of luck.

He had an ejection seat but was locked in ground mode as you would want when testing an aircraft.

Fascinating story.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close