I wonder if it would have made such a difference if the velocities were much
lower?
It seems like people have their own idea of what motor they would like to use
if there’s another mass launch if Punishers or a similar bird. Also, maybe
some variation in the airframe as well? For example, 3” diameter, 54 mm
engine, 4’ long minimum rocket airframe. Instead of a drag race, it becomes a
maximum altitude launch.
From: Dave Peterson
Sent: Friday, June 19, 2015 12:33 PM
To: roc-chat@xxxxxxxxxxxxx
For the three rockets in the 9.1 - 9.2 lb weight range, the two with tailcones
did 15K+ and the other did ~13.5K. The two heaviest rockets also happened to
have tailcones and the lightest did not have a tailcone. It appears that the
tailcone may have been a bigger factor than mass.
From: roc-chat-bounce@xxxxxxxxxxxxx [mailto:roc-chat-bounce@xxxxxxxxxxxxx] On
Behalf Of Kurt Gugisberg
Sent: Friday, June 19, 2015 8:57 AM
To: roc-chat@xxxxxxxxxxxxx
Subject: [roc-chat] Re: Punisher Flight Data
I think some of them went straighter up than others but generally it looks like
the heavier rockets went higher. Says something about optimal weight. In the
sim, mine gained altitude with the addition of 6 oz of nose weight. Could also
mean the weighted ones were more stable than the others and therefore, went
straighter.
Kurt
On Fri, Jun 19, 2015 at 8:22 AM, R Dierking <applerocketry@xxxxxxxxxxx> wrote:
It’s unfortunate about the CATO’s, other than off course the personal losses,
it would have been easier drawing some conclusions from the flight data if
there were more ‘survivors’. However, it looks like the rockets with tail cone
retainers went higher. The mass vs. altitude is interesting too.
This was a lot of work for you Chris. Thank you for doing this!
Is someone going to submit photos with some info to Rockets Mag?
From: Chris Kobel
Sent: Friday, June 19, 2015 7:47 AM
To: roc-chat@xxxxxxxxxxxxx
Here's my final data collection:
Orange - scratched
Pink - CATO (3/9)
6 successfully recovered flights - average altitude=14877' (though none of the
six rockets registered in the 14s!)
Bi-modal distribution of limited data
Chris
