Mr Spaceman From Canada, joined Mar 2001, 2780 posts, RR: 15 Posted (9 years 3 months 1 week 3 days 20 hours ago) and read 2155 times:
Hi guys.
I know the turning limits of many airliners has been discussed here in the past, but I did a search for the answer to this A340 question and had no luck.
So, because the photo below of an A340-642 is begging me to ask ..........
What is the turning limits for an A340-6's nosegear?
The nosegear on the A340 in the photo looks like it's being cranked around pretty far. It looks like it's turned 90 degrees to the left!
Mr Spaceman From Canada, joined Mar 2001, 2780 posts, RR: 15 Reply 2, posted (9 years 3 months 1 week 3 days 19 hours ago) and read 2100 times:
Hello QantasA332.
Sure, I think the info you provided helps because it shows a DC-9 with a limit of +/- 80, so it's not unlikely that this Airbus's nosegear is turned that far at least.
Even though it's nosegear looks like it's turned 90 degrees, it's probably less than that.
I do have one question however, about the limits you listed. Why are they shown as +/- limits, and not as set limits? Is there a tolerance built in to protect the nosegear incase a tug driver accidently turns the gear a few degrees past the posted limit?
QantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 35 Reply 3, posted (9 years 3 months 1 week 3 days 19 hours ago) and read 2100 times:
I do have one question however, about the limits you listed. Why are they shown as +/- limits, and not as set limits? Is there a tolerance built in to protect the nosegear incase a tug driver accidently turns the gear a few degrees past the posted limit?
I don't know the exact answer but yes, I think the limits definitely have a bit of a buffer in case of "over-angling"...
Bio15 From Colombia, joined Mar 2001, 1089 posts, RR: 7 Reply 4, posted (9 years 3 months 1 week 3 days 19 hours ago) and read 2099 times:
Tell me if I'm wrong, but I think the +/- means from -xx degrees to +xx degrees. I am sure there is a small tolerance, but it is probably very small (not mentionable) - especially considering that the deflection angle is given to a precision of .5 degrees which is real small-. This is just a guess though, let the experts reveal the truth
Flysab From Belgium, joined Nov 1999, 106 posts, RR: 6 Reply 5, posted (9 years 3 months 1 week 3 days 5 hours ago) and read 1531 times:
For A340-200 and -300, and for A330, the angle of deflection is 72° each side.
This gives a turning radius of 44 meters to make a 180° for the A330-200.
Mr Spaceman From Canada, joined Mar 2001, 2780 posts, RR: 15 Reply 7, posted (9 years 3 months 1 week 2 days 20 hours ago) and read 1458 times:
Hi guys.
Thank You, for your information.
> VC-10, Thanks for your specific info about the A346's steering limit and the clarification that the +/- means 75 degrees to the left or right.
The nose gear on the A346 in the photo must be turned all the way to it's 75 degrees limit because it looks like it's turned to almost 90 degrees! Must be an illusion.
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