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Old 30 June 2003, 03:07 AM   #1
AchimEngels
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Hello Folks,

I have a lack a knowledge and thought some of you may be able to help me out here.

We are about to finish the Fokker D.VII throttle quadrant of our two D.VII repros.

Making the parts is no problem and we have good sources for the dimensions of the parts. There is one thing in the throttle that I just do not understand.

Please take a look at the attached images.







I wonder what the cable is that is attached to the throttle lever just above the push rod.

If this cable has something to do with fuel, oil or air adjustment then I wonder why it appears to go forward to the engine compartment and backwards into the rear of the fuselage.

Is this just a locking device or what is it.

Does it not just go back into the rear of the fuselage but rather more turns around and returns to the engine so that both ends of the cable do attach to a lever on one axis?

Does any body know what this is?

Thanks!

Achim
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Old 30 June 2003, 03:39 AM   #2
AchimEngels
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Could this just be a security cable that attaches to the same lever where the push rod goes to, or at least to the carburettor lever.

This would enable the pilot to control the carburettor to some degree in case the rod itself was shot away.

This would then turn out to be some kind of security device semiliar to the one used with the rotary powered Fokkers.

Just a thought. Does anybody know the right answer?

Achim
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Old 30 June 2003, 10:52 AM   #3
Boz0
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Mr Engels

The two cables are the direct connection between the standard and the combat throttle on the control stick.

Hope this helps.

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Old 30 June 2003, 01:13 PM   #4
Dan_San_Abbott
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Achim:
The hand throttle on the left side is the primary throttle, it is connected to the linked carburetor levers on the top the the carburetor. The throttle hand lever on top left of the is connected by means of two Bowden controls which are connected fore and aft to the main throttle control. The Bowden control housings are clipped to the control column and to the floor and up the vertical tubes to the throttle lever mounting bracket.
When the lever on the stick head is moved , the bowden controls move the main throttle lever.
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Old 30 June 2003, 01:34 PM   #5
EdStevens
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Hey, copyright infringement! The colour photo of the D.VII cockpit is mine, no doubt via Peter Couhausz. It's the Knowlton D.VII, to which I was lucky enough to be allowed access. They kindly provided a ladder so that I could photograph the cockpit as long as I didn't touch anything. The pictures appeared in black and white in WW1 Aero, and then in colour in Deutsche Flugzeuge Bis 1945. I am now providing my own photo credit!
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Old 30 June 2003, 02:31 PM   #6
AchimEngels
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Hello Ed,

No! The photograph is your´s indeed, but not via Cohausz. Remember that you send me copies of several of your images some years ago? I should have mentioned it above. Sorry for not having done so. Hope you are not upset *:.

BozO and Abbott,

This makes complete sense! Thanks a lot! Now I can put together the pieces in the right way!

Best

Achim
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Old 1 July 2003, 12:18 AM   #7
AchimEngels
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For what reason does the lower end of the quadrant throttle lever have so many attachment holes in it?

Achim
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Old 1 July 2003, 04:55 AM   #8
visaliaaviation
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Achim,

Sorry if this is OT,but EVERY time you post a photo, all I get is a red x. I get the other's just fine. I feel iIm missing out. Anyone know what gives?
thanks
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Old 1 July 2003, 06:43 AM   #9
Boz0
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By setting the connecting rod higher or lower on the throttle lever, you can adjust the stroke of that lever according to the type of carburator (related to the engine ) used on the aircraft; In this particular case a BMW.

Alain
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Old 1 July 2003, 11:42 AM   #10
AchimEngels
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visaliaaviation,

I do not know what happens at your end. Have you tried copying the address of the images right into your browser?

Try this one:

http://www.collectors-edition.de/FokkerD7/...6/Throttle1.jpg

It should work. If not - I do not know what is wrong.

BozO,

This sounds reasonable. Does there exist a list of potential carburettor/engine combinations and the position where the cable should attach the lever or was this something that was set by the mechanics according to wheather and other creteria in the field?

Achim
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