Tiger 1 gun elevation

[Sam Hough]

Hello,

What powered the real Tiger 1 gun elevation? Hydraulic motor?

We are trying a standard servo at the moment and it is very fast/wobbly/jerky. So nothing like the real thing?

Should we be aiming (no pun intended) for slow deliberate movement? If a hydraulic motor (like the turret) then a very narrow speed range?

Thanks

Sam

[Stephen White]

Mechanical geared linkage, gunner operated hand wheel. Here:

http://tiger1.info/EN/Hachette-Elevation-Gear.html

In reality, as the Tiger had no elevation stabilisation, the gunner's fine lay in elevation was quite subtle. The only time that the gun would be elevated significantly would be long range HE shoots.

The only reason I chose a direct servo drive for my Centuirion was as a pre-cursor to a stab system, for which the responsiveness of a servo is needed. Even then, I went for a linear actuator rather than a rotary servo. To get a servo drive to work, the gun needs to be accurately balanced, slop in the linkages removed and the speed of the servo tuned.

Hope that helps.

Stephen

[Adrian Harris]

Have a look at the servo speed reduction circuits which are used for aircraft landing gear. Turnigy make one. They should stop the jerkiness of the elevation.

According to this video, it was hand cranked (@ 2:25).



Adrian.

[John Heath]

Fitting a "servo slow" would help. Simple little unit that fits in line with the servo and alows you to adjust the speed of the servo for a more realistic speed.

John

Beat me to it.

[Sam Hough]

Thanks all!

So very slow and steady. I'll have to rummage in the parts bin.

Regards

Sam

[Sam Hough]

Hmmm. I decided to make life really complicated for myself.

This is what I've got so far:


Roughly the right sort of speed?

I enjoyed myself but the suggests on this thread much more sensible