Well, its sides are .45", thus the diagonal is (sq rt of 2) x .45 = .6364" = 16.16mm and it might just fit through a spark plug hole.  Of course, you will have to supply the light.

 

Grayhawk

 

These are a nice idea, but if you are interested in inspecting your fuel
bays, there are three problems
1. too short - 4-5 feet long is needed
2. cross section too large - check your fuel passages - 3/4" probably
won't pass
3. not steerable

This is why I bought a used colonoscope years ago. Now there are other
products that come closer to our needs.

Ted Noel


On 9/12/2013 8:31 AM, Colyn Case wrote:
> Hi George,   I'm in the market too.
> Looking this one over, it looks nicely integrated but the resolution is not impressive.
> Especially when you consider stuff like this:
> http://www.supercircuits.com/security-cameras/micro-video-cameras/mini-color-snake-pinhole-camera-pc223xp
> or the higher res version of that here:
> http://www.supercircuits.com/security-cameras/micro-video-cameras/hi-res-low-light-color-snake-camera-pc229xp
>
> On Sep 12, 2013, at 1:56 AM, George Wehrung wrote:
>
> All,
>
> Once again seeking input/experience.  After reading Mike Busch's article in Flying magazine regarding compression checks I am convinced that also conducting a visual inspection of the cylinders is wise.  Furthermore, I like the idea of recording it for year to year comparison.  I emailed Mike on his recommendation and although he recommended a local EAA chapter purchase the $1,000 SnapOn model to share, it will not work for me where I am at.  Plus like most of us, no-one takes care of your tools like you do.
>
> After visiting a few of the typical online aviation shops I am considering the ATS model as it seems to be adapted for aviation use rather than a run of the mill automobile:
>
> http://www.aircraft-tool.com/shop/detail.aspx?PRODUCT_ID=ATS-VS400-3
>
> Does anyone have experience with using these?  Also trying to decide 1 or 3 meter length.  The one meter would be easier for the engine inspection but the three meter has possibility for running under floor boards, behind the instrument panel or maybe in the tail.
>
> Thanks
>
> George
>
>
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