calculating distance

Message

#1 Post by **eric** » Wed Aug 08, 2007 7:11 pm

is there anyway of calculating a rough distance by time of how long it takes from when the lead leaves the beach to when it hits the water?

#2 Post by **fishinmidget** » Wed Aug 08, 2007 7:14 pm

yes but you would need to know the angle of the cast and the rough speed of the lead and then you have to add in gravity and wind and air pressure and all that junk

#3 Post by **eric** » Wed Aug 08, 2007 7:22 pm

oh dear :( i did physics for th e leaving does that help :lol:

#4 Post by **fishinmidget** » Wed Aug 08, 2007 7:53 pm

it would...if you knew the angle of you cast and the speed of the lead. :lol:

#5 Post by **paul mason** » Wed Aug 08, 2007 9:23 pm

A good way of calculating distance over water is to step it out, a good step is a yard, so i have been told by Andrew Gormley after all he is god and can walk on water.

Distance over water is very deceptive and has caused many a good argument there is no real way of calculating it and many a good 200yd cast on the beach turned out to be a lot less when the lad turned up on the casting court

#6 Post by **stevecrow74** » Wed Aug 08, 2007 11:36 pm

this will help the calculation.. you just need to know the angle and speed and wind speed.. the calculation formula is there :shock: :D

http://hyperphysics.phy-astr.gsu.edu/hb ... .html#tra4

paddyc · #7 Post by **paddyc** » Thu Aug 09, 2007 8:33 am

The easiest way i know off is to get yourself a detachable line counter (lidle do them every now and then E5) once you have cast lock the line counter on to the rod run the line over the wheel and as you retrieve the lead it clocks up the metres, there not 100% accurate but are within 5-10metres

#8 Post by **EoinMag** » Thu Aug 09, 2007 9:30 am

stevecrow74 wrote:this will help the calculation.. you just need to know the angle and speed and wind speed.. the calculation formula is there :shock: :D

http://hyperphysics.phy-astr.gsu.edu/hb ... .html#tra4

Steve there's one element that doesn't take into account and which would stop the shape from being the perfect elliptical curve shown in the attached picture and that's the force back towards the angler of the line being dragged, so it's not going to be a perfect ballistic trajectory.

#9 Post by **fishinmidget** » Thu Aug 09, 2007 9:36 am

that would give you the distance of a crack off but as eoin said, you need to take the reel and line into account.

#10 Post by AG » Thu Aug 09, 2007 12:50 pm

hope to see you all at mass this weekend in carlingford :)

tony j · #11 Post by **tony j** » Thu Aug 09, 2007 10:15 pm

you could always try makring the line with black marker pen every 50 metres or so.

1 mark at 50

2 marks at a 100

3 marks at 150

and so on.

or do it in increments of 10 metres after 100.

#12 Post by **chrisfeeney30** » Thu Aug 09, 2007 10:39 pm

tony j wrote:you could always try making the line with black marker pen every 50 metres or so.

1 mark at 50

2 marks at a 100

3 marks at 150

and so on.

or do it in inrements of 10 yds after 100.

smart!

#13 Post by **eric** » Fri Aug 10, 2007 10:17 am

wouldn't the pen wash off tough?

#14 Post by MC » Fri Aug 10, 2007 9:58 pm

not if it a permanent waterproof maker, like the ones used to write the kids name on their clothes

teacher · #15 Post by **teacher** » Sat Aug 11, 2007 12:55 pm

Would a permanent marker weaken the line?

#16 Post by **Pat Spillane** » Sat Aug 11, 2007 3:56 pm

Remember the question was arough distance by time not scientific.

Just time your cast by counting the time over grass and measure. Apply the same counting while on the beach. For instance if you cast 100 metres over grass and you count to 6, if you then cast on the beach and it counts 9 you can assume its around 150 metres.

#17 Post by **Brunocork** » Sat Aug 11, 2007 5:17 pm

tony j wrote:you could always try makring the line with black marker pen every 50 metres or so.

1 mark at 50

2 marks at a 100

3 marks at 150

and so on.

or do it in increments of 10 metres after 100.

I like it! 8)