[AR] Re: Larger size motor case liners
- From: Paul Mueller <paul.mueller.iii@xxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Thu, 17 Oct 2013 15:27:37 -0600
Eric,
Any recollections on cost of the Franklin tubes?
Thanks,
Paul M
On Thu, Oct 17, 2013 at 1:38 PM, Eric Boyer <jeb19@xxxxxxx> wrote:
> Franklin Fibre has tubes in paper phenolic and other compositions in
> various sizes and wall thicknesses:
> http://www.franklinfibre.com/**phenolic_paper_tubes.html<http://www.franklinfibre.com/phenolic_paper_tubes.html>
> "...available in diameters ranging from .118" ID to 49.2" ID" (!)
>
> We've used it both as fuel cartridge casings and as an X-ray translucent
> cartridge/pressure vessel (thick-walled, of course!) for our hybrid rocket
> work.
>
> Eric
>
>
> At 09:40 AM 10/17/2013, Robert C Steinke wrote:
>
>> I got some paper phenolic liners custom made by Precision Paper Tube (
>> pptube.com). They are 5" ID, 5.25" OD, .125" wall, and 36" long. When
>> I bought a batch of 5 they were about $200 each. Make sure to specify
>> convolute wound, not spiral wound.
>>
>> Daryle, I still have some left if that size would work for you.
>>
>> Bob Steinke
>>
>>
>> On Wed, 16 Oct 2013 12:56:14 -0700
>> Daryle Dismukes <daryled@xxxxxxxxx> wrote:
>>
>>> Those of you who are working with fuel grains in the 150mm / 5.5-6 inch
>>> diameter range, what are you using for your motor cases and liners? The
>>> largest I've done before is 98mm, and I used as much off the shelf
>>> Aerotech
>>> hardware as I could. Now I need to do something larger in a hurry at work
>>> and I'm hoping to find a source of pre-made carbon phenolic tubes between
>>> 5.5 to 6 inches in diameter. Any sources or ideas? Other things to try?
>>> -Daryle
>>>
>>
>
> ------------------------
> Eric Boyer Assistant Director, High Pressure
> Combustion Lab
> Research Associate Department of Mechanical and Nuclear
> Engineering
> (814) 863-2264 Penn State University
> jeb19@xxxxxxx University Park, PA 16802
>
>
>
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