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Landing Gear 777-300ER  
User currently offlineGreg From United Kingdom, joined May 2005, 0 posts, RR: 0
Posted (13 years 5 months 2 weeks 5 hours ago) and read 3713 times:

I understand that in order to get 1.5 degree increase on rotation without a tailstrike, the 300ER will actually rotate on the last set of tires on each main bogie. Apparently a hydraulic brace has been engineered to allow the aircraft to rotate on it's 'heels'.

I'm sure I read this from a credible source, but I can't place it.
Is this correct?







11 replies: All unread, jump to last
 
User currently offlineSinlock From United States of America, joined Dec 2000, 1692 posts, RR: 2
Reply 1, posted (13 years 5 months 2 weeks 4 hours ago) and read 3647 times:

I remember reading this in AW&ST.

I'm not sure if Boeing actual did it. It should be easy to tell when we get better pictures.


User currently offlineGreg From United Kingdom, joined May 2005, 0 posts, RR: 0
Reply 2, posted (13 years 5 months 2 weeks ago) and read 3549 times:

I'm pretty sure they had to.

I recall they mentioned they needed the extra degree to create the extra lift necessary to satisfy their takeoff length guarantees...

The gear looks the same to me...(not that I would know what to look for...)

The Vmu tests should be very interesting to see!


User currently offlineClickhappy From United States of America, joined Sep 2001, 9823 posts, RR: 64
Reply 3, posted (13 years 5 months 2 weeks ago) and read 3542 times:
Support Airliners.net - become a First Class Member!

Have a look:

http://www.clickhappy.com/to_home/dsc_0746.jpg
http://www.clickhappy.com/to_home/dsc_0747.jpg
http://www.clickhappy.com/to_home/dsc_0748.jpg



User currently offlineGreg From United Kingdom, joined May 2005, 0 posts, RR: 0
Reply 4, posted (13 years 5 months 1 week 6 days 23 hours ago) and read 3484 times:

Hey.
Thanks!
Appreciate it.
Ok...it doesn't look the same.
I guess that ends the speculation....
Brgds.


User currently offlineHamlet69 From United States of America, joined Mar 2000, 2849 posts, RR: 57
Reply 5, posted (13 years 5 months 1 week 6 days 21 hours ago) and read 3438 times:

Greg,

You should trust in yourself more! That is actually a very good description of what was done. As the pictures show, the 777-300ER will actually physically lift its front two bogies off the ground during rotation, gaining a greater degree of lift on the wings and thereby cutting down field length.

Should be interesting to see in practice!

Regards,

Hamlet69



Honor the warriors, not the war.
User currently offlineApuneger From Belgium, joined Sep 2000, 3036 posts, RR: 10
Reply 6, posted (13 years 5 months 1 week 6 days 21 hours ago) and read 3379 times:

Interesting topic. Maybe the following picture can help:


copyright...euh...that would be me! Big grin


Ivan

PS: yup, this one was rejected  Sad



Ivan Coninx - Brussels Aviation Photography
User currently offlineBrons2 From United States of America, joined Sep 2001, 3035 posts, RR: 4
Reply 7, posted (13 years 5 months 1 week 6 days 19 hours ago) and read 3320 times:

Rejected? Oh man, that's a great pic! Thanks for sharing!


Firings, if well done, are good for employee morale.
User currently offlineDANLAUZ From Canada, joined Jul 1999, 30 posts, RR: 0
Reply 8, posted (13 years 5 months 1 week 6 days 18 hours ago) and read 3304 times:

could the front wheels go down instead. i am not specialist but to drop the front wheels would help the front of the aircrafy to raise ??


User currently offlineAzeem From Pakistan, joined Jul 2000, 137 posts, RR: 0
Reply 9, posted (13 years 5 months 1 week 6 days 11 hours ago) and read 3203 times:

A bit 'off the track' question. Does the A340-600 rotates on same rules?



User currently offlineN79969 From , joined Dec 1969, posts, RR:
Reply 10, posted (13 years 5 months 1 week 5 days ago) and read 3045 times:


http://biz.yahoo.com/prnews/021121/chth013_1.html


User currently offlineApuneger From Belgium, joined Sep 2000, 3036 posts, RR: 10
Reply 11, posted (13 years 5 months 1 week 4 days 20 hours ago) and read 2991 times:

Brons2: Thanks for the compliment  Wink/being sarcastic

DANLAUZ: Very good point. Makes sense to me.

Ivan



Ivan Coninx - Brussels Aviation Photography
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