Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Christmas week Quizzes
    From: Herman Dekker
    Date: 2020 Dec 26, 13:32 -0800

    Flies to East with 150-30=120Kn, to west with 150+30=180Kn.
    Time to east =x min, Time to west=y min. x+y=180min.

    Equation: x·120Kn=y·180Kn  Substitute for y=180min-x

    x·120=(180min-x)·180
    120x=1802-180x
    300x=1802
    x=1802/300=108min.
    Distance to east after 108min flying= 108/60x120=216mile

    Nice Christmas from
    HermanD

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site