re: relative bearings maybe useful formula

[Rumata]

Gentlemen, 

maybe something of an interest for you. I  kinda wrote a formula  which  maybe  useful.  MAybe;>  It can  be used to get a running  fix from bow  and beam relative bearings. It is well-known  procedure.  But  to speed up  calculations,   there are so-called method  of double angles and 0.7, and also distance travels equalls distance off.  Plus a few so-called special  angles , like 36 deg  bearing1 and 69 deg.  bearing 2.  In the last,  particular case distance travelled is equal  distance oiff the beam to  the object you are  taking bearing on.

Anyway, instead of using  just a few angles  why not  to use any angle at the first  bearing  and calculate what  angle should be  at the second bearing  if  you want  to  have distance travelled between bearings to  be equal  to  distance offf beam of that specific  object you took  bearings at.

a very simple drrawing is following.( see attachment).

Again,  nothin  revolutionary,  just maybe helpful.  Thank  you

[Rumata]

Gentlemen, I'm including a very simple TAble (  please,  see the  Attachment to this message)  which helps to use the above mentioned formula .  Pretty  much  it is just two columns of angles.,  The numbers in red are the second bearing angles . The comments to the table explain  the easiest way  to use it. No need for calculators, just have this little table and take first  bearing at ANY angle ( up to 45 deg). Second column  tells you  what second bearing should be to  have the distace travelled to  be equal  to  the distance abeam when  passing the object.  Your  comments  will be  much appreciated.

Thank you

[Rumata]

This simple graph  will  make it  even  more easier.  If  there is a need in the whole idea,  of course.  ;> ;>