You can do splash for models, for example spot landing contests.
Does anyone know, does openrocket do splash analysis?
On June 16, 2015 9:45:20 AM PDT, R Dierking <applerocketry@xxxxxxxxxxx> wrote:
So motor variability includes thrust vectoring?
Hum… all parameters varied?
OK, I’ve never done that because I haven’t even come close to launching
a high alt rocket. So, please forget my reference to the splash
analysis. Perhaps for now just keeping the topic to the <20K’ rockets?
James, next time you do the analysis for one of your high alts, please
let me see the results and the track the rocket actually took. Maybe
someday, way in the future, I’ll need to do this.
From: James Dougherty
Sent: Tuesday, June 16, 2015 9:20 AM
To: roc-chat@xxxxxxxxxxxxx
What Cliff said :-)
Sent from my iPhone
On Jun 16, 2015, at 6:00 AM, R Dierking <applerocketry@xxxxxxxxxxx>
wrote:
So the analysis does take into account launch angles. But, what’s the
maximum angle? Wow, than a high launch angle and altitude could take
your rocket out of even Black Rock and it would be acceptable? I've
heard that in the future FAA is interested in roll control. I wonder
why and if launch angle (intended and true) would be important.
From: Cliff Sojourner
Sent: Monday, June 15, 2015 11:51 PM
To: roc-chat@xxxxxxxxxxxxx
On 2015-06-15 11:46, R Dierking wrote:
This is an interesting problem, and a solution would help many people.
Really, what’s the use developing a complex ‘splash’ analysis for a
high alt flight if you don’t even know what direction the rocket will
be going 20’ off the ground! And, if you are off 5 degrees at that
point, it makes a lot of difference where your rocket is going to be at
+10K’.
hi Richard, not picking on you tonight, really :) Splash analysis is a
"monte carlo" simulation, many many flights with all parameters varied,
such as launch angle, wind speed and direction, motor variability, etc.
at the end you can say with great statistical confidence that the
rocket really will fly and land somewhere on the splash chart.
