Nomad From United Kingdom, joined Mar 2005, 56 posts, RR: 0 Posted (8 years 5 months 3 weeks 3 days 1 hour ago) and read 3289 times:
Can any of you experts enlighten me of how they jack up the A380 in order to test the landing gear ! I saw them testing it on a channel 4 documentary the other night but didn't see how they lifted the aircraft.
BuyantUkhaa From Mongolia, joined May 2004, 2807 posts, RR: 3 Reply 1, posted (8 years 5 months 3 weeks 2 days 17 hours ago) and read 3039 times:
Landing gear is normally tested without a plane on top: some factory machine throws the gear on the ground (in such a way that forces are the same as a rough landing), and this should ensure that the gear is up to the job. Should not be tested with a real plane on top: what if it fails?
MD11Engineer From Germany, joined Oct 2003, 13602 posts, RR: 63 Reply 2, posted (8 years 5 months 3 weeks 2 days 16 hours ago) and read 3029 times:
Moment. The landing gear will have to be tested after installation, especially the emergency deploy function. Also adjusting the wheel well doors requires gear swings (retractions and extensions). For this the airplane is being jacked up using huge hydraulic jacks on hardpoints on the wings and the fuselage. Since I haven´t seen the A380 from close up yet, I can´t tell you where the jacking points are on this plane.
HAWK21M From India, joined Jan 2001, 31457 posts, RR: 57 Reply 3, posted (8 years 5 months 3 weeks 2 days 10 hours ago) and read 2976 times:
The A380 would def have been Jacked up to check its functioning of the Retraction Sequence on the Grd,would need Jacking up.
Anyone having Pics of the Aircraft doing Retraction tests on Jacks.
DAirbus From United States of America, joined Nov 2003, 588 posts, RR: 2 Reply 4, posted (8 years 5 months 3 weeks 1 day 11 hours ago) and read 2835 times:
I saw the same documentary here in the states. After looking at my recorded copy of the program and doing some research of the photo database, it appears the A380 has four jackpoints. One at the front, one at the rear, and one under each wing.
This photograph I believe shows the nose jackpoint as just behind the nosewheel where the triangular shaped hydraulic jack painted white is.
The wing jackpoints can be seen here by the location of two jacks which are colored gray with a black cylinder extending from the base just inboard of the pylons for engines two and three. From the TV program, the point appears to be approximately 2/3 of the chord from the leading edge.
MD11Engineer From Germany, joined Oct 2003, 13602 posts, RR: 63 Reply 6, posted (8 years 5 months 3 weeks 1 day 5 hours ago) and read 2812 times:
Depends on the aircraft type. Normally three jack hold the weight of the aircraft ansd one is pressurised to a lower force and just stabilises the plane. The B737 e.g. has it's weight carrried by the tail jack and the wing jacks, with the nose jack stabilising. The A320 is carried by two wing jacks and the nose jack and gets stabilised by the tail jack.