Ballistic trajectories

[Mangrove Cuckoo]

Gordy,

Thanks!

That makes *so* much more sense!

Now I have more homework to do.

Gary

[George C]

Apologies if this does not belong in this thread.
My question regards casting adjustments to change trajectory.
Does translational hand path need to change or can trajectory adjustment be made by changing where in rotation MAV peaks?

Thanks
George

[Paul Arden]

Hi George,

It can be done with either, but normally I use both.

Cheers, Paul

[Walter]

Hi George,

In my mind I think of it as rotation but in practice I do both.

[whinging pom]

Not as cool as an XL spreadsheet but...

I don't know if this is completely accurate but I was taught, very young in life, that you could make a fist, hold your arm out straight, put the bottom of your fist on the horizon, and the top of your fist would approximate 10 degrees.

If the bottom of the setting sun touched the top of your fist you better start getting your ass home! The sun moves 15 degrees in an hour, so you had about one hour before your Mom was going to make your Dad go out and try to find you!

........thats interesting and slightly off topic i know, but in summer in Sydney a fingers width was equivelent to 5 mins and one cool down filter grade ( 85a 85b, 85c,) for old slide film and had you in right old panic. As an assistant fashion photographer i got blamed a few times for the sun going down too fast. ( one memorable and very remote shoot I tolf him to "Go forth and multiply", and left him to deal with his own gear and film).

so your four fingers were 15 mins of useful shooting, till the light got to warm and diffused.and 5 mins regret total 20mins per fist

Back from there to Blackpool in the UK in mid winter on the beach, the round thing they claimed was the sun barely got above your fist at mid day and each finger was about an hour.... but felt a hell of a lot longer. so your fists was 4 hours

sorry i'll get back to re reading walters excelent opener.
pom

[Paul Arden]

It’s very weird, and maybe has to do with living outdoors in the tropics, but I can always tell you what time of day it is within 15 minutes. It’s probably because the variation between short and long day lengths is about 30mins.