German Whizz Weel in Flash and exe available

[joegrundman]

Using the reverse side of the tool to solve the speed problem.

Step 1. Adopt an intercept course. Do not change speed or heading until procedure is complete.

Step 2. Observe AOB and bearing to target and current own speed. Start chronometer.

Say AOB = 35; bearing to target =270, that is 90 on the Peilung wheel. Own speed =4kts.

Set AOB to own speed. Look under bearing to target. The speed here is the target speed, assuming no change in relative bearing. You can see that the speed of the target here is 7knts.




Stage 2

If the relative bearing to target changes, then you need to perform a speed correction.

Up scope and note new bearing to target. Get range to target. Note exact time elapsed. Down scope. calcualte difference in bearing position.

Let's say after 5 mins exactly, the change in bearing = 280-270 = 10 degrees. Range to target is 1500m


1. Set the range in meters opposite the original AOB, that is 1500m opposite 35 on the peilung wheel.

2.Set the time elapsed, 5 mins, on the zeit wheel to match the change in bearing 290-280= 10 degrees.

3. Read off the speed correction across from the red line on the zeit wheel. Here you see it is 3kts

If the target advanced relative to you, add this correction to the previous estimate. If you advanced relative to the target, subtract it.

In our case we add the speed correction, so 7knts +3knt = 10kts

[jimmie]

I suggest adding a "cursor"(hairline) to B-side of the wheel so it'll be easy to read the number, remembering the number found.

[Abd_von_Mumit]

Dertien - your tool will greatly help me in learning process of using the wheel. Thank you very much for your programme.

Starting to RTFM...

[don1reed]

Howdy Dertien,

Just to let you know that I dl your wonderous WW and to thank you for adding this to Subsim community. Great Job.

[lambda*sqrt(u*x)]

Thank you! I really like using all kinds of circular and linear slide rules for combat sims... and that's one big shot ahead!

Immersion is not a crime!

[LemonA]

Originally Posted by dertien

for those who want the offline version in exe format it can be found
here (1.88 meg).

The version above has severe problems with the accuracy.
Only two examples: reciprocal side of 341.0° should be 161.0° and not 160.1°.


Reciprocal side of 090.0° should be 270.0° and not 270.4°

Is there actually an improved version of the stand-alone Attack Disc?

[complutum]

This is a request to the creator of the stand alone exe. could you please make a version that works on android devices?. Thx in advance.

[Gerald]

Necro tread,

Originally Posted by dertien

Now if someone can make a decent tutorial, on how to use this thing, it would be grand.

Angriffsscheibe Handbuch 3 (Attack disc manual)

aka "Whizz Wheel" or once as the "Is-Was Attacking Instrument", developed by Captain Nasmith, later Admiral Sir Martin Eric Dunbar-Nasmith. Call it what you will, it's all basically the same and usable for SH4 as well as for every other Naval Sim firing with torpedoes at something.

And for all ol' new and new ol' sailors in SH3 or 4 being at a loss in view of this greatly animated Whizz Wheel, there's a downloadable PDF manual by Kapitänleutnant (Kaleu/Lieutenant/Cpt) Hähl of March, 2008 around, so for almost 15 years. Almost. Time flies.

Also available in Spanish: Disco de Ataque Aleman Manual traducido por Karmados

Have fun with it.