×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Wing tip deflection

Wing tip deflection

Wing tip deflection

(OP)
Today, after lunch, while watching an A330 take off I had a discussion with a colegue regarding the deflection of the wing tip. I said that the wing tip of an A330/340 can deflect up to 2 meters with full pax/cargo load. He didn't believe me.

Does anyone have any idea of deflection of the wing tip in these and other a/c's just to make a comparison?

RE: Wing tip deflection

747 will go 17 ft before failing.
T

RE: Wing tip deflection

Six inches or so in a Navajo (6-seater twin aircraft).

Personally observed while test flying a wingitp-mounted "secret device" for any induced oscillations.

STF

RE: Wing tip deflection

777 static test went about 24 ft. before failing.  

The load condition was 2.5g limit load pullup maneuver, times 1.5 to make it 3.75g at ultimate.

Wing failed just outboard of the pylons at 154%.

Typical excursions on the fatigue test were on the order of 8 ft during rotation/liftoff.

SuperStress

RE: Wing tip deflection

Dash 8-S400 on Ultimate + growth Static test deflected over 70 inches at the wing tip (I believe it got upto 84 inches but can't quite remember - I have got a picture of it somewhere). On the A330, IABG (Munich) and IMA (Dresden) did the structural testing of the aircraft, if you want a definitive answer pertaining to the A330/A340 you could try them or the manufacturer. Airbus UK (ex BAESystems), also did an outboard wing segment test for the new A340-500/-600 at Filton. If you check out IABG's web page they actually have a picture of the A330 structural test showing a deflected wing case.

www.iabg.de

Gary W

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!


Resources