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Please Help - School Science project - Ballistic Tables

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02 December 2002, 08:34
trigger
Please Help - School Science project - Ballistic Tables
Folks

I am helping my 15 year old with a science project this year. Calculating ballistic coeffiecient from two velocity readings (10 feet and 100 yards). Loads from a Disk will calculate the BC for us, given this data, however - he needs to show the formula and actually compute the BC.
We have the data. We found the formula, but the formula we found depends on Ingalls Table I.

We need S(v) v is velocity.

Does anyone know where the tables can be found on-line? Or does anyone have a copy of the tables and / wiling to send the values for about 60 different velocities? Or by chance can S(v) be calculated?

Thanks
02 December 2002, 09:52
trigger
OK more info.

Someone tells me that the Ingalls tables number I are found in Hatcher's Notebook. Does anyone have a copy? Can you check for me?

Thanks
02 December 2002, 09:54
Russell E. Taylor
quote:
Originally posted by trigger:
Does anyone know where the tables can be found on-line?
This might get you started.

Russ
02 December 2002, 18:12
Sysephus
Trigger,

Have Hatcher's Notebook open to Table I.

Need to know projectile velocity (both V and v [ initial and terminal velocity ] ) since Table I is 26 pages long. V= 3600 to 1300 fps ∆ 10 fps and V = 1300 to 100fps ∆ 1fps

rs

[ 12-02-2002, 09:23: Message edited by: Sysephus ]