Quantcast

Vertical Trajectory System is Ready to Fly

The Rocketry Forum

Help Support The Rocketry Forum:

OverTheTop

Well-Known Member
TRF Supporter
Joined
Jul 10, 2007
Messages
4,386
Reaction score
1,614
Location
Melbourne Australia
I have just completed the VTS and prepped it for its maiden flight, which was to be tomorrow (Sunday). Unfortunately the weather has shelved plans for that for at least another week. Might fly on the 12th August.
DSC07147resize.JPG


Full build thread with latest updates here:
https://forum.ausrocketry.com/viewtopic.php?f=56&t=5324&start=45

If you scroll back a little you can see some of the strength testing I did on some of the 3D printed fins for this. Surprisingly strong :).
Here is a picture of a fin printed on the Formlabs Form 2. That is 22kg side load producing that deflection.
ToughDeflection.JPG


Refer to the thread linked at the top of the page for more information.
 

mpitfield

Moderator
Staff member
TRF Lifetime Supporter
Global Mod
Joined
Jul 7, 2013
Messages
4,900
Reaction score
430
Location
Toronto, Ontario
Very cool, I am looking forward to seeing your results.
 

neil_w

"Between builds"
TRF Supporter
Joined
Jul 14, 2015
Messages
10,157
Reaction score
3,218
Location
Northern NJ
This is a really cool project. Curious: how did you decide on that design for the rocket? The fins in the middle are interesting. Sort of following guided missile design practices?
 

OverTheTop

Well-Known Member
TRF Supporter
Joined
Jul 10, 2007
Messages
4,386
Reaction score
1,614
Location
Melbourne Australia
My test-bed for the VTS module is a Binder Design Velociraptor that I built a few years back. Nothing special about the "claw" fins. Just part of the art that is the Velociraptor :cool:.

OnWallOnHold.jpg
 

Voyager1

Well-Known Member
TRF Supporter
Joined
Oct 23, 2015
Messages
555
Reaction score
182
Location
Oz
My test-bed for the VTS module is a Binder Design Velociraptor that I built a few years back. Nothing special about the "claw" fins. Just part of the art that is the Velociraptor :cool:.

View attachment 359408
Love the curtain rail OTT! Good luck with the Serpentine launch - weather permitting.
 

Voyager1

Well-Known Member
TRF Supporter
Joined
Oct 23, 2015
Messages
555
Reaction score
182
Location
Oz
All the best OTT from all at the CRG!

Clear skies and vertical flight.
 

neil_w

"Between builds"
TRF Supporter
Joined
Jul 14, 2015
Messages
10,157
Reaction score
3,218
Location
Northern NJ
Good luck, this should be interesting!

Is that, like, your smallest rocket? ;)
 

JimJarvis50

Well-Known Member
Joined
Jan 18, 2009
Messages
2,437
Reaction score
671
Man, you're killing us with the delays. Hopefully, this week will be it. I hope you enjoy flying your system as much as I have mine.

Jim
 

OverTheTop

Well-Known Member
TRF Supporter
Joined
Jul 10, 2007
Messages
4,386
Reaction score
1,614
Location
Melbourne Australia
Launch is GO for this Sunday 26th August :)

Thanks for the well-wishes all.

I do have a few smaller rockets, but this is around the size I like flying. I think L motors are my favourite. I fly a D every now and then for a nice low-stress flight!
 

OverTheTop

Well-Known Member
TRF Supporter
Joined
Jul 10, 2007
Messages
4,386
Reaction score
1,614
Location
Melbourne Australia
Thanks for asking. Life is getting in the way of this currently :(. I still have not had anything like a good look at the logging and meaningful analysis.

Basic synopsis:
  • Flight was nominal, like any standard HPR flight. It was a bit of a big gravity turn by the looks of it, but no worse than other flights on the day. All hardware recovered well and there was not damage.
  • Quick inspection of the servo logging showed it was working, at least in the roll axis. There was either some Dutch roll happening or roll-axis oscillation. Not sure which yet.
  • The three keychain cameras suffered bad batteries, so no visuals on the fins :(. One side-looking camera recorded well. New cameras ordered for next time. I may connect an external battery to run them.
  • I am in the process of digging into this. First step was to replace the two flight batteries in the VTS that were drained when a RBF pin fell out when I unloaded the VTS from the car to the bench. Managed to get to that last night, and then the LiPo for the TeleMega died...

As I said, no detail findings yet. I will let you know when I know. Stay tuned!

VTSPad.jpg
 

Latest posts

Top