Yup.
K
On Sun, Apr 11, 2021 at 2:28 AM Tyler Adkison <tyler.adkison@xxxxxxxxx>
wrote:
Are we talking about this stuff?
https://www.ebay.com/itm/PHENOLIC-PREPREG-WOVEN-FIBER-SILICA-FABRIC-roll-MIKAM-UK-Aerospace-usage-SQM-/224073580467
I'm semi-seriously interested. I am on a team that is considering
fabricating a flightweight ablative rocket engine but having some
layup advice would be helpful to get a ballpark figure of price and whether
or not the layup is within our means.
Thanks,
Tyler
On Sat, Apr 10, 2021 at 11:50 PM roxanna Mason <rocketmaster.ken@xxxxxxxxx>
wrote:
BTW, FYI to anyone wanting to make their own S/P nozzle, there's S/P
prepreg on ebay, 36" wide and as long as you need or can afford.
The caveat is that it's in the UK and requires storage/transport at sub
freezing temps, i/e. shipped in dry ice.
This said, it's still cheaper than buying it new from Hexcel with the
usual minimum order and they usually don't like dealing with amatures.
If anyone is serious and wants to order some let me know and I'll connect
you with the seller. This is a rare opportunity that doesn't come up
very often. I can also offer lay up advice so you can calculate how much
is needed for your application,
Thanks,
Ken
On Fri, Apr 9, 2021 at 7:39 PM Tyler Adkison <tyler.adkison@xxxxxxxxx>
wrote:
Any advice on laying up the chevron pattern? I've never done a composite
layup in that style before.
Thanks.
On Fri, Apr 9, 2021 at 6:30 PM Brian Feeney <alaiadesign@xxxxxxxxx>
wrote:
Is that a LOX / Kerosene engine at the 40KLbF rating?
What chamber pressure is the TCA at for the 40KLbF rating?
Thank you!
Brian
On Fri, Apr 9, 2021 at 9:14 PM roxanna Mason <
rocketmaster.ken@xxxxxxxxx> wrote:
Tyler, drawing of 40KLbF Ablative TCA, note chevron pattern for
maximum resistance to high velocity high temp gas erosion
Thanks,
Ken
On Fri, Apr 9, 2021 at 1:41 PM Tyler Adkison <tyler.adkison@xxxxxxxxx>
wrote:
I, for one, would be interested in these drawings as well. If you
could link them here or send them to me as well, it would be much
appreciated.
Thanks,
Tyler
On Fri, Apr 9, 2021 at 11:25 AM roxanna Mason <
rocketmaster.ken@xxxxxxxxx> wrote:
Hello Jon. I personally contributed to the manufacture of a number
of ablative TCA's, 1,1.5, 5 and 20KLbF, the former is an online video
of it
under hot testing.
I have some drawings that I could scan and email though knowledge
of construction details is something else.
Thank you and good luck,
Ken
On Fri, Apr 9, 2021 at 5:46 AM Jonathan Adams <
jonadams2002@xxxxxxxxx> wrote:
Hello everyone,
I'm getting to the construction stage of a 4.5kN ablative liquid
propellant engine, and I was wondering if anyone had any good
resources for
composite layup for the ablative wall. Possibly even resources
specific to
composite layup for small rocket engines.
I haven't been able to find many good resources out there for how
to do this, and I wanted to know if anyone could point me in the right
direction for how to go about this. Even personal experience for how
to do
this right (and cost-effectively!) would be greatly appreciated.
Thanks,
Jon.
