Over the past years I have been 'collecting' a whole bunch of nice aviation tools on the internet, mostly to look up data on flights I have taken in the past for my logbook. There is a bunch of goodies out there, and unfortunately many of them are unknown to many people.
Let us all share our favourite most-useful aviation sites!
PLEASE: Only browser-based applications/sites, no programs.
Also PLEASE: only free of charge, no services that you have to pay for.
Also PLEASE: give a direct link to the part of the site where the tool is, not just the main page!
Also PLEASE: add a little description!
Here are mine:
1) Great Circle Mapper
Graphically displays routes between any two or more airports, along with distance, etops and several other useful information.
2) BTS Database
Research flights back until 1995, including exact wheels-off and -on times, tail numbers, etc. Use the links in the bottom (Detailed Statistics)
3) Time Zone Converter
Like the name says, convert any time in any timezone to any other timezone.
4) Airline Callsigns
The most comprehensive I could find so far...
5) Airport Codes
Fully searchable. Make sure to scroll down, the stuff in the top is advertising.
6) Aircraft Registration Prefixes
A) Current: http://www.helis.com/howflies/aviacode.php
B) Historic: http://www.airlinecodes.co.uk/regprefixhis.asp
C) Rules: http://www.ivao.org/db/prefix/home.htm
7) Live and Past Traffic on select USA airports
Very neat tool, you can research back to 2004 and see exact movements at any hour/minute. Must be a huge data inventory...
8) N- Number research
Research any plane registered in the US.
9) Airline Callsigns
10) Information on any US airport
Research airline fleets. Unfortunately there are lots of annoying pop-ups, and it only supports certain airplane types.