Old fashion method for determining SPEED

[Puster Bill]

Thanks for that link Don. Here are the results of my efforts at building your amazing whiz wheel:





Not exactly a professional job, but good enough. I used the same cardstock in my printer that I use for QSL cards, and I laminated both sides of each wheel individually. I laminated the outer wheels together, so that it is double-sided.

What I am wondering about (since I haven't had the opportunity to use it yet) is whether I should just pretend that meters = yards, or should I apply the correction?

[don1reed]

Great job, Bill.

If you have any thin, clear, plastic lamination lying around...you could make two excellent cursors for your whiz-wheel, one for each side (if you have not already done so). Make them long enough to span from the center pin to about 1/2 in. beyond the outter edge.

(Nice Rig, BTW )

Math: I always convert Kilometers into Nautical miles-- Km x .54 = nm.

QSL card stock is the perfect size!

(73)

Don

[greyrider]

don reed wrote:

If you have any thin, clear, plastic lamination lying around...you could make two excellent cursors for your whiz-wheel,

actually, i piece of white thread, threaded from the underside of the wheel , in the center of the wheel,with a small needle works the best. the small knot at the end of the thread prevents the thread from poping thru the wheel, and makes a great bearing indicator.

this is a field expedient method. the thread should be long enough to reach alittle beyond the outer ring of the wheel.

[don1reed]

Good idea, Greyrider.

...in my days under the ruck, I used waxed dental floss on my protractor

[Puster Bill]

Originally Posted by don1reed

Great job, Bill.

If you have any thin, clear, plastic lamination lying around...you could make two excellent cursors for your whiz-wheel, one for each side (if you have not already done so). Make them long enough to span from the center pin to about 1/2 in. beyond the outter edge.

(Nice Rig, BTW )

Math: I always convert Kilometers into Nautical miles-- Km x .54 = nm.

QSL card stock is the perfect size!

(73)

Don

Thanks. It's a Kenwood TS-520. Built like a battleship, and twice as tough. I've had it for about 15 years now and the tubes are still good. The key is a Chinese Army key. Again, built like a battleship. I mostly operate CW, except during things like Submarines on the Air and Museum Ships weekend when most of the operations are on SSB.

I've been thinking about laminating a piece of black thread for a cursor. What I would do is lay the thread on a piece of the lamination (on the sticky side, of course) Then lay another piece of lamination over it and cut it to suit. I can see the need for a cursor on the one side, but not necessarily on the Nasmith side, although I suppose it couldn't hurt. That is my next step.

By the way, that trick with the push pins is just about the best way to connect the wheels together.

[jmr]

Would be cool if we had some resident programming gurus to cook up an online whiz wheel.

[dertien]

Hey Don,

Where did you download that very nice compass I can see on your screenshot ?

thanks for sharing the link.

Don't forget that u-boat.reasimulation is down, so an alternative download (e.g. rapidshare ) would be quite nice.

thx

[don1reed]

That is an excellent MOD by FLB sale U-999

I believe you can still find it here:
'
http://rapidshare.de/files/11677312/...zeigen.7z.html

[dertien]

Much obliged Don, thx

Did anyone have any luck with making a Virtual Sliderule or the Wizzwheel in a virtual version...?

[Phoenix3000]

Hi, this is a great idea -

@don1reed - I clicked the link to get the whizzwheels, but it's no longer active - anyone know where they are located now?

Thanks all,

Px3000

[don1reed]

Try this site for "Build your own sliderule":

http://www.sphere.bc.ca/test/build.html

phonix i have it here if you want it in a mail.

What i was asking for was the virtual sliders - not how to make a real one (done that already)

[Phoenix3000]

@Mav87 - Hi, can you please email them, that would be excellent!

Here's my email:

phoenix_3_000 (at) yahoo.com

Replace (at) with @ - helps to stop the spammers!

Thanks a million!

Px3000