what is this U shape metal function in term of whole rocket structure?

what is this U shape metal function in term of whole rocket structure?

Post by nano satellit » Thu, 14 Nov 2002 17:39:13



what is this U shape metal function in term of whole rocket structure?

a. in the small drawing in here
http://members.shaw.ca/sonde/graphs/chutefolding.gif

b. the 7th pic in here
http://www.yellowjacketsystems.com/jimball/construction/pup/default.htm

are they refer to the same thing.
They may refer to different things and of different function.

no pic here
http://www.yellowjacketsystems.com/jimball/construction/pup/hires1.jpg

when I was I draw pic on the wall, when I graduated from college when I
played the rocket once but it was many many years ago.  That is I have no
real experience before.

Thanks

 
 
 

what is this U shape metal function in term of whole rocket structure?

Post by Davi » Thu, 14 Nov 2002 21:09:19


Yes, they are the same thing.  They are U bolts.  Eye bolts are also
commonly used.  They are used to attach the shock cord to the bulkheads in
the rocket.  The parachute is attached to the shock cord about 1/3 of the
way from one end.

See the diagrams on pages 6-8 of this altimeter manual for some good
information about how several common recovery systems are organized:
http://www.missileworks.com/documents/RRC2X_Manual.PDF

-- David


Quote:
> what is this U shape metal function in term of whole rocket structure?

> a. in the small drawing in here
> http://members.shaw.ca/sonde/graphs/chutefolding.gif

> b. the 7th pic in here
> http://www.yellowjacketsystems.com/jimball/construction/pup/default.htm

> are they refer to the same thing.
> They may refer to different things and of different function.

> no pic here
> http://www.yellowjacketsystems.com/jimball/construction/pup/hires1.jpg

> when I was I draw pic on the wall, when I graduated from college when I
> played the rocket once but it was many many years ago.  That is I have no
> real experience before.

> Thanks


 
 
 

what is this U shape metal function in term of whole rocket structure?

Post by Lew Garr » Thu, 14 Nov 2002 22:25:34


actually in the first drawing it is hard to tell if what you see in the bottom
picture is the airframe or the deployment bag mentioned in the text. If it is
the deployment bag then that is not a metal loop but rather a fabric one that
is then atteched to the shock cord that pulls the bag off the parachute - the
other end can be attached to a nose cone or to a U-bolt such as the one seen in
the second (b) picture.
Lew Garrow
TRA 7181 L3
NAR 77928 L3
METRA VP
NAR L3CC
****remove the plex from my email to reply****
 
 
 

what is this U shape metal function in term of whole rocket structure?

Post by Joel Corwit » Thu, 14 Nov 2002 23:33:26


I'm with the 'loop for the bag' crowd on this one...

Joel. phx


Quote:
> actually in the first drawing it is hard to tell if what you see in the
bottom
> picture is the airframe or the deployment bag mentioned in the text. If it
is
> the deployment bag then that is not a metal loop but rather a fabric one
that
> is then atteched to the shock cord that pulls the bag off the parachute -
the
> other end can be attached to a nose cone or to a U-bolt such as the one
seen in
> the second (b) picture.
> Lew Garrow
> TRA 7181 L3
> NAR 77928 L3
> METRA VP
> NAR L3CC
> ****remove the plex from my email to reply****

 
 
 

what is this U shape metal function in term of whole rocket structure?

Post by Mark Simps » Fri, 15 Nov 2002 02:26:47


Quote:

> what is this U shape metal function in term of whole rocket structure?

> a. in the small drawing in here
> http://members.shaw.ca/sonde/graphs/chutefolding.gif

> b. the 7th pic in here
> http://www.yellowjacketsystems.com/jimball/construction/pup/default.htm

> are they refer to the same thing.
> They may refer to different things and of different function.

> no pic here
> http://www.yellowjacketsystems.com/jimball/construction/pup/hires1.jpg

> when I was I draw pic on the wall, when I graduated from college when I
> played the rocket once but it was many many years ago.  That is I have no
> real experience before.

> Thanks

The purpose of the U-bolt is to provide a strong anchoring point for the shock cord.

Mark Simpson
NAR 71503 Level II