I think Ken is talking about the Black Box. "Sarrouf, Michael" wrote: > > > Yes, I agree with the fact that the Aircraft Might have Hit the Ground > with the force of 700G's, Killing everyone. My Point is that Mr. Patel > worded his email " The Aircraft can take on 700G Force" To me this > sounds like he is saying the aircraft is structurally sound to with > stand a force of 700G's. > > My Perception only!! > > -----Original Message----- > > From: Tim Weller [SMTP:[log in to unmask]] > Sent: Thursday, October 11, 2001 10:46 AM > To: [log in to unmask] > Subject: Re: [TN] Question for the physics "gurus" > > It's not the in-flight stresses, it's the sudden impact with the > ground. > > "Sarrouf, Michael" wrote: > > > Ken, > > Coming from a Pilot's stand point. There is no way an > aircraft could pull 700g's. 7G's yes. People black out at > 4.5-5g's if they are not wearing a Gsuit like the military > pilots wear. Military pilots can pull up to 9g's but they > are wearing the Gsuit. Most commercial aircraft might have > the structural strength to with stand a 16G load Factor. At > 700G's a person weighing 150lbs would weigh 35,000lbs. > > Are you sure it was not 7G's the aircraft was pulling?? > > Mike > > -----Original Message----- > From: Ken Patel [SMTP:[log in to unmask]] > Sent: Wednesday, October 10, 2001 6:29 PM > To: [log in to unmask] > Subject: Re: [TN] Question for the physics "gurus" > > All, > If G force is the gravitation force acting on the object > then why many times an object is > being designed to take so may G forces. What I have heard > that voice recorder of the plane > that went down in Pennsylvania can take on 700G force! So, > if the free fall is 1 G then why > design 700 times safer. So, height above the ground does > matter. May be I got to take a look > at the physic's book unless someone explain in layman's > term. > > re, > Ken Patel > > Timothy Reeves wrote: > > > No Jason, > > I am not a guru, but that's OK. They are not > interconvertible. One is a > > measure of force, the other acceleration (actually a > dimensionless > > multiplier of the standard gravitational acceleration, g, > 9.8 m/s^2). If you > > have an object in mind of a known mass, you could find the > force exerted on > > it given the acceleration ("G's") by F = m a. > > > > Example: 100 gram object subjected to 5 G's ---------> F = > 0.1 kg * 5 * 9.8 > > m/s^2 = 4.9 Newtons or 0.5 kilogram force or 1.1 lb-force. > > > > > Tim Reeves > > > > -----Original Message----- > > From: Jason Gregory [ <mailto:[log in to unmask]>] > > Sent: Tuesday, October 09, 2001 9:01 AM > > Subject: Question for the physics "gurus" > > > > How do you convert pound/kilogram to G-force? Is this > convertable? Since > > G-force is somewhat time derived and pound/kilogram is > force derived? > > Any help is appreciated. > > > > Jason Gregory > > Software Specialist - NPI Group > > SCI Systems/Plant 2 > > 13000 S. Memorial Pkwy. > > Huntsville, AL. 35803 > > (256) 882-4107 x3728 > > [log in to unmask] > > > > > --------------------------------------------------------------------------------- > > > Technet Mail List provided as a free service by IPC using > LISTSERV 1.8d > > To unsubscribe, send a message to [log in to unmask] with > following text in > > the BODY (NOT the subject field): SIGNOFF Technet > > To temporarily halt delivery of Technet send the following > message: SET Technet NOMAIL > > Search previous postings at: www.ipc.org > On-Line > Resources & Databases > E-mail Archives > > Please visit IPC web site ( > <http://www.ipc.org/html/forum.htm>) for additional > > information, or contact Keach Sasamori at [log in to unmask] > or 847-509-9700 ext.5315 > > > --------------------------------------------------------------------------------- > > > --------------------------------------------------------------------------------- > > Technet Mail List provided as a free service by IPC using > LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with > following text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt delivery of Technet send the following > message: SET Technet NOMAIL > Search previous postings at: www.ipc.org > On-Line Resources > & Databases > E-mail Archives > Please visit IPC web site ( > <http://www.ipc.org/html/forum.htm>) for additional > information, or contact Keach Sasamori at [log in to unmask] or > 847-509-9700 ext.5315 > > -------------------------------------------------------------------------------- >