[AR] Re: arocket Digest V5 #9

  • From: "Henrik Schultz" <henrik@xxxxxxxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx, arocket@xxxxxxxxxxxxx
  • Date: Fri, 13 Jan 2017 21:48:43 +0000

Ed -

Using a large font when writing an e-mail makes the text bigger for both sender AND receiver.
Using a zoom function in your local e-mail client makes the text bigger only for you. Just as on Web pages.
I believe all moderne e-mail clients allow zooming (magnifying) local text.

Best - Henrik

------ Original Message ------
From: "Edward Wranosky" <edwardcw@xxxxxxxxx>
To: arocket@xxxxxxxxxxxxx
Sent: 2017-01-13 22:35:03
Subject: [AR] Re: arocket Digest V5 #9

The goggles, they do nothing for the eyes!

On Fri, Jan 13, 2017 at 2:01 PM, Anthony Cesaroni <acesaroni@xxxxxxxxxxx> wrote:
Thank you.



Anthony J. Cesaroni

President/CEO

Cesaroni Technology/Cesaroni Aerospace

http://www.cesaronitech.com/

(941) 360-3100 x101 Sarasota

(905) 887-2370 x222 Toronto



From:arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On Behalf Of John Dom
Sent: Friday, January 13, 2017 3:46 PM
To:arocket@xxxxxxxxxxxxx
Subject: [AR] Re: arocket Digest V5 #9



Edward: FYI, Courier 36 letter font size is er, maybe unnecessarily alarming. I respond here with Calibri 12 for a change.



John



From:arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On Behalf Of Edward Wranosky
Sent: vrijdag 13 januari 2017 20:15
To:arocket@xxxxxxxxxxxxx
Subject: [AR] Re: arocket Digest V5 #9



Rick,



I think he is talking about mixing aluminum in with a pure wax grain, which is what I was talking about - mixing with vaseline.



If I'm adding anything to an HTPB/Powdered Wax grain I mix it into the HTPB before adding wax. I don't think vaseline and HTPB would work that well together.



Edward



On Fri, Jan 13, 2017 at 11:35 AM, Rick Dickinson <rtd@xxxxxxxxxxxx> wrote:

Isn't the issue that you don't want to heat the mixture, because doing so would melt all of that nicely-powdered paraffin wax into a liquid mess? You want liquid HTPB to get in and around the wax grains, supporting them in its matrix as it cures. So, "solutions" that involve heating won't work well.

Although, I suppose you could heat Vaseline and stir it into your powdered aluminum, then add that to your HTPB, stirring well. Then, cool it down and add your curative before mixing it with your wax granules. I'm pretty sure you'd still need a vacuum step or two in there to get all the entrained air out, though.

Might be worth a try just as a test, I suppose.

Cheers,

Rick Dickinson



On January 11, 2017 9:24:16 AM PST, Edward Wranosky <edwardcw@xxxxxxxxx> wrote:

Instead of paraffin I'd be more inclined to mix it with something like warm vaseline, then mix that in to the paraffin. Vaseline is more likely to wet out the particles, especially if you pull a vacuum on the mixture.







Edward







On Wed, Jan 11, 2017 at 10:08 AM, Uwe Klein <uwe@xxxxxxxxxxxxxxxxxxx> wrote:

Am 10.01.2017 um 20:38 schrieb (Redacted sender monsieurboo for DMARC):

... but the
paraffin doesn't really "wet" the powder so as the grain cools, the
powder separates out in streaks and I can't get a homogeneous grain.


Have you ever tried premixing al powder with a small amount of paraffin
first creating a paste? ( same issue (lumping) with mixing flour and water which you can fix by creating a flour paste first.)

uwe





--
Sent from my Android device with K-9 Mail. Please excuse my brevity.



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