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Originally Posted by aaronblood
So, I see you're coming in on a 45° to the target TC.
Is that it? ...or is there something more to it? :hmm:
So far, I'm not really seeing any need to name it anything...  |
I never really understood the Dick O'Kane method. I could never relate the instructions to the maths behind the technique. It just seemed a bit like a rough guess, which worked because you were very close to the target. I had a look on your tutorial thread, but that's a very brief snippet talking about a 7 knot target, with no details. Can you point me to the log behind it?
This new method came out of me trying to create a rule of thumb for a 45 degree attack, without using the TDC at all. I thought the Dick O'Kane method was a non TDC method to attack a target with a zero gyro angle, but it turns out the TDC is used and is more complicated that I thought.
My aim is to present a simple method people can use who want to do manual targetting, but don't want to use the TDC.
As it happens, I could not get an easy rule of thumb for 45 degree attack and after investigating, I found that the old speed plus three rule of thumb is also not satisfactory at all. I came up with a way to get the correct bearing of the target to fire at to hit with any torpedo track angle, with a zero gyro angle, by just using the map drawing tools. Just one protractor drawing and two rule drawings are enough to easily calculate the correct lead angle for a zero gyro angle shot at any intersecting courses for any given target speed or torpedo speed. It's essentially a constant bearing solution for torpedo and target, making the range irrelevant.