Attn MickC

[iwik]

Hi Mick,
Can you tell me what is the diameter of the gauge posted here.
http://www.ebay.com/itm/Boeing-747-Aircraft-Duct-Temperature-Indicator-P-N-260591-/322220421893

Hoping it may be used to make a Dual needle gauge. Do you know if it has two movements similar to the last one i discussed with you.
Thanks
les

[mickc]

Hi Les,

These are exactly 2" across the face, they will have a similar movement setup but the range will be mechanically limited. 
These needles only have a travel of around 90 degrees each, so If you want to make a 737 style duct pressure gauge, you will need around 270 degrees.

There are 747/737 classic duct pressure gauges around that would be a better starting point.

[iwik]

Thanks
Les