A Question Of Navigation — Tech Ops Forum

Sponsor Message:


My Starred Topics \| Profile \| New Topic \| Forum Index \| Help \| Search

A Question Of Navigation

Xxxx10 From United Kingdom, joined Jan 2000, 777 posts, RR: 0
Posted (12 years 4 months 4 days 5 hours ago) and read 773 times:

Please can anyone help

Does anyone know how the early jet ailiners such as 737-200 ,727, fokker f28 & 1-11 navigate apart from using radio aids, are they now etro-fitted with gps?

If so does it just provide groundspeed and track information or can it give distance and bearing to the en-route waypoints.

Thanks

6 replies: All unread, jump to last

FLY 8 From Austria, joined Dec 2000, 329 posts, RR: 0
Reply 1, posted (12 years 4 months 4 days 3 hours ago) and read 719 times:

The early jets flew from navaid to navaid, and if the flew on an "selfmade" track they had to plot their position! Here in Europe, at least in Austria and Germany, you still have to learn plotting when you take your ATPL. On long range flights they had an IRS.
Today we don´t have an IRS but an INS!
Mainly there is the FMS (flight management system) and this gets it´s information from:
VOR
DME
IRS
INS
AHRS
GPS

So if you have any questions about something else here, just ask me! If I would explain here the whole navigation stuff I would still sit around in a few days!!

Best regards,
Benjamin!

yes i can handle that alone. - - -famous last words

Modesto2 From United States of America, joined Jul 2000, 2634 posts, RR: 6
Reply 2, posted (12 years 4 months 3 days 8 hours ago) and read 675 times:

FLY 8, could you explain: "Today we don´t have an IRS but an INS!"... I thought the IRS is an updated version of the INS that uses laser ring gyros... The 777's use GPS with multiple IRS backup.

N766AS From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 4 months 3 days 8 hours ago) and read 665 times:

All's I know is the IRS takes my money and needs to be stopped...

FLY 8 From Austria, joined Dec 2000, 329 posts, RR: 0
Reply 4, posted (12 years 4 months 3 days 3 hours ago) and read 661 times:

Sorry, my mistake!

yes i can handle that alone. - - -famous last words

CdfMXTech From United States of America, joined Jul 2000, 1338 posts, RR: 29
Reply 5, posted (12 years 4 months 16 hours ago) and read 632 times:

Order of navigation used on aircraft today:

GPS
DME + DME + IRU
DME + IRU
IRU

GPS is the most accurate form used to navigate. The aircraft FMCS DOES NOT want to use Inertial Reference if it doesn't HAVE to because of its error rate.

Buff From Australia, joined Mar 2007, 0 posts, RR: 2
Reply 6, posted (12 years 4 months 9 hours ago) and read 623 times:

Many operators in Canada still do not have anything other than basic VOR/ADF equipment in their aircraft, including (but now defunct) my past employer's Dash 8/BAe-146 operation.

LAR navigation is a most valuable skill once acquired, and can save your a** at some inoportune time when you least expect it/most need it.

Best Regards,

Buff

Top Of Page

Forum Index

Reply To This Topic A Question Of Navigation

Username:	No username? Sign up now!
Password:	Forgot Password? Be reminded. Remember me on this computer (uses cookies)

Tech/Ops related posts only!
Not Tech/Ops related? Use the other forums
No adverts of any kind. This includes web pages.
No hostile language or criticizing of others.
Do not post copyright protected material.
Use relevant and describing topics.
Check if your post already been discussed.
Check your spelling!
DETAILED RULES

Check Spelling

Please check your spelling (press "Check Spelling" above)

Similar topics: