Question Griggs 30gal Aux Tanks

26 Apr 2023 12:39 #3912 by STEVE ELLS
Replied by STEVE ELLS on topic Griggs 30gal Aux Tanks
Hi Dale;
Sorry someone hasn't gotten to you sooner-I was hoping someone with actual experience would weigh in.

I do not have operational experience so the only help I can be is to refer you to

That's company that manufacturers and sells the tanks.

If you've found more information, I would appreciate it if you can find the time to post it here.

153 gallons is quite a fuel load.


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  • Dale Egan
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11 Apr 2023 07:32 #3910 by Dale Egan
Griggs 30gal Aux Tanks was created by Dale Egan
We recently purchased the Griggs aux tanks for our 1977 Seneca II and are having them installed this spring. 

The plane currently has the existing factory 'extended range' tanks of 123 gallon total.  These additional nacelle tanks would make approximately 153 gallons, it appears.

Does anyone have flight ops experience with these aux tanks?

  - Dale

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