Jump to content


Ultra Artificial Horizon

  • Please log in to reply
1 reply to this topic

#1 Lohengrin Zapiain

Lohengrin Zapiain

    Advanced Member

  • Members
  • PipPipPip
  • 70 posts

Posted 15 September 2010 - 07:45 AM

Has anybody ever had any issues with the Ultra I artificial horizon?

Mine doesn't seem to go all the way on one side (AKA I can not get it right when adjusting with my carpenters bubble level)

  • 0

#2 Jerry Holway

Jerry Holway

    Advanced Member

  • Sustaining Members
  • 716 posts
  • Philadelphia

Posted 15 September 2010 - 08:30 AM


There are several adjustments that can be made to the Ultra 1 horizon, including a gross zeroing one. The small pots are on the outer circuit board on the left (port) side of the sled. Unfortunately, to get to the adjustment pots, you must get the cover off, and that takes a bit of time and effort.

When you do get the cover off, there are several other pots to adjust as well - in particular the rate and range pots. One adjusts the damping of the display (how fast or slow and therefore reactive to acceleration), the other adjusts how many degrees off level you are for a full scale indication. The factory presets, were, IMHO, set too fast for sensitivity (not enough damping), and the full scale indication was set for too many degrees.

Both adjustments are a matter of taste and/or operating skill - Larry McConkey used to (may still) set his damping to zero - he wasn't worried about level, and he used the artificial horizon more as an lateral accelerometer to keep him on a straight line...

The specific pots, i.e., which does what, are I think on Tiffen's website.. (I did not check and don't have the file on this computer, sorry). Contact me off-forum if you can't find it.

  • 0

Ritter Battery

PLC Electronics Solutions

rebotnix Technologies

Wireless Video Systems



Boland Communications


PLC - Bartech

Camera Motion Research

Paralinx LLC

Betz Tools for Stabilizers

Varizoom Follow Focus

GPI Pro Systems

Omnishot Systems