Fair enough. If you changed your mind and needed any recommendations I would
recommend the Xsens MTI-1 series modules. Excellent technical support and
killer modules that would be smaller than your pinky fingernail.
Troy
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Robert Watzlavick
Sent: Thursday, 27 January 2022 12:51 PM
To: arocket@xxxxxxxxxxxxx; Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx>
Subject: [AR] Re: Successful liquid launch at FAR
I already bought 2 of the ADIS16354 IMUs a while back but they would require
"real" nav filters to be implemented for them to be useful. I flew one of them
and recorded all the data onboard with a flash card so I'm hoping to use the
onboard video to correlate the results from the nav filter once I implement it.
But you're right, there are probably cheaper and better solutions out there.
-Bob
On 1/24/22 10:59 PM, Troy Prideaux wrote:
The good news is there’s an abundance of reasonable IMU options out there now
(for your acceleration range) without getting into exotics. Many will do all
the orientation work for you ie. will spit out either euler angles or
quaternion or rotation matrix data at some pretty brisk rates with magnetic
referencing for some flavours.
Troy
From: arocket-bounce@xxxxxxxxxxxxx <mailto:arocket-bounce@xxxxxxxxxxxxx>
[mailto:arocket-bounce@xxxxxxxxxxxxx] On Behalf Of Robert Watzlavick
Sent: Tuesday, 25 January 2022 3:07 PM
To: arocket@xxxxxxxxxxxxx <mailto:arocket@xxxxxxxxxxxxx> ; Alex Bruccoleri
<mailto:alexrocketry@xxxxxxxxx> <alexrocketry@xxxxxxxxx>
Subject: [AR] Re: Successful liquid launch at FAR
The plan is to add active stability control to the existing rocket (using
movable control surfaces, not gimbaling), get the bugs worked out with that,
then build a larger vehicle. That may take me a while though. I'm a bit
challenged in linear algebra and control theory so I'll have to dust off the
textbooks for this effort.
-Bob
On 1/24/22 1:23 PM, Alex Bruccoleri wrote:
This is incredible! Very well done. Do you have plans to go for higher
altitude?
Cheers, Alex
On Sun, Jan 16, 2022 at 9:57 AM Robert Watzlavick <rocket@xxxxxxxxxxxxxx
<mailto:rocket@xxxxxxxxxxxxxx> > wrote:
I finally launched my 250 lbf LOX/kerosene rocket yesterday at FAR. It got to
10800 ft with a 10 second burn and winds were calm so there were no
weathercocking issues off the rail. The drogue and main deployed as intended
and we recovered it about 6000 ft down range. I’ll post more details in a few
days but I want to thank everyone on this list that has helped me over the
years. I had a lot of really smart folks help me along the way and I appreciate
it!
-Bob
