Notices
Career Questions Career advice, interview prep and gouges, job fairs, etc.

RVR to SM formula....

Old 10-22-2010, 10:40 AM
  #1  
On Reserve
Thread Starter
 
pilot125's Avatar
 
Joined APC: Jan 2008
Posts: 23
Default RVR to SM formula....

Used to have a very easy formula for converting RVR to statute miles, one that could be done in your head. Now I can't remember it, can anyone help me out?

Think you took the first two numbers of an RVR (1600) and divided by some number??????????
pilot125 is offline  
Old 10-23-2010, 08:58 PM
  #2  
Line Holder
 
Joined APC: Feb 2007
Position: MD80
Posts: 86
Default

a mile is 5000 feet, for RVR purposes. do the math in your head
ftrflyboy is offline  
Old 10-27-2010, 03:13 PM
  #3  
Prime Minister/Moderator
 
rickair7777's Avatar
 
Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 39,210
Default

The FAA has assigned conversion values which do not have a very good mathematical correlation to each other. I know these off the top of my head...

1SM / 5000
3/4 SM / 4000
1/2 SM / 2400
1/4 SM / 1600

You can use reported vis instead of RVR for CAT-I and non-prec approaches only. CAT-II/III require RVR.
rickair7777 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cheyenne Driver
Fractional
29
11-03-2023 07:59 AM
rthompsonjr
Technical
3
06-07-2010 07:29 AM
bubi352
Technical
9
09-12-2009 11:01 AM
packageflyer
Technical
13
11-11-2008 06:21 PM
DYNASTY HVY
Hangar Talk
22
11-01-2008 04:18 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Thread Tools
Search this Thread
Your Privacy Choices