Author Topic: 2.6" Darkstar ~ Wildman Rocketry  (Read 3201 times)

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
2.6" Darkstar ~ Wildman Rocketry
« on: July 09, 2017, 09:15:40 AM »
URRF was a blast, and to top it off I was the lucky raffle winner of a 2.6" Wildman kit! The kit being raffled was a competitor with a 38mm mount. When I picked up up Tim was kind enough to let me swap it for a Darkstar with 54mm mount! I did't get the parts pile pic, but overall I was impressed with the kit. it's been a while since I got a kit from Tim and this all thin wall 2.6" line is pretty neat.

This kit came with 3/32 fins, so I started with my new bevel jig set to around 15 degrees. The jig uses the edge of a disk sander with the fin in a vertical position. the tilting table on the sander is what sets the angle...

Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #1 on: July 09, 2017, 09:21:16 AM »
I totally forgot to get kevlar at URRF, which is one thing I really like to get direct from a vendor so you can see and feel what you're getting. my 3" Optomystic had a 30 ft 3/8" kevlar booster harness so I decided that could be 25ish feet   ;) now I have enough for the Y harness!

sanded the parts, notched the top centering ring and glued in place with 30min epoxy with some milled fiberglass mixed in. I wrapped the harness ends with electrical tape to hold it down till the epoxy set.

« Last Edit: July 09, 2017, 02:50:45 PM by RKeller »
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #2 on: July 09, 2017, 02:00:31 PM »
Next I installed the aft ring and 54mm motor mount using JB weld. Wildman includes a thin aluminum spacer to make the mount fit the thin wall 54mm tubing. it took some sanding to get the spacer and mount to fit on the tube.
Then I dry fit everything together and measured and masked for 5/8" diameter fillets.
Once I knew where I wanted the epoxy I sanded all the surfaces with 60 grit paper.

« Last Edit: July 09, 2017, 02:52:46 PM by RKeller »
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #3 on: July 09, 2017, 02:14:49 PM »
washed all the dust off, cleaned with alcohol and acetone then started assembly. I'm using rail buttons with a flange nut since this is thin wall tubing. The rear button was tricky because there is such little space between the body tube and MMT. I failed to get a pic but was able to slide the MMT's front centering ring past the hole for the button and slip the button (with jb weld on it) between the tubes and into the drilled hole. Once the screw was holding the flange nut in place I finished installing the MMT. I didn't actually epoxy it in place, just used superglue to hold it where I wanted it.

Then I mixed up some rocketpoxy and squirted a big bead through each aft fin slot. Stuck the fins in, slid them around, pulled them part way out and back in to make sure the epoxy was spread around good. Used a template from payloadbay.com to keep the fins straight while the rocketpoxy cured.



« Last Edit: July 09, 2017, 02:48:59 PM by RKeller »
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #4 on: July 09, 2017, 08:03:05 PM »
repeated the same process for the next 3 fins. used popsicle sticks to lineup the fins with the aft ones.
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #5 on: July 16, 2017, 07:43:12 PM »
I masked off all the fins for the 5/8" diameter fillets. And then did them all at once. 6 fins is a bit much so I had to work quickly. Mixed up rocketpoxy and added black dye. Turned out pretty good. Not perfect, but the'll do.




Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #6 on: July 17, 2017, 08:33:10 PM »
Stickershock! still haven't decided on clear coat...
Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #7 on: July 20, 2017, 08:19:21 PM »
the av bay coupler is pretty short for these and I want to run 2 altimeters. I modeled a sled that will hold two altimeters, RRC2+ or Stratologger CF's, two 180mah lipo's and two missileworks screw switches. Here's what it looks like. it's 5.5" long and will also fit in a 54mm coupler.

Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #8 on: July 21, 2017, 04:34:59 PM »
test fitting the sled out. fits perfectly in a 54mm MAC coupler. will also fit perfectly in the Wildman 2.6" one.


Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline RKeller

  • Administrator
  • Hero Member
  • *****
  • Posts: 416
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #9 on: October 04, 2017, 09:05:49 PM »
Did the maiden flight last month on a K1103X. Nice and straight to 11,111ft. It got there in a hurry! didn't get a good velocity on the altimeter but it sims to mach 1.65.

Riley Keller
URRG
TRA#15415
L1 25 Oct 2014 Estes MDRM CTI H133
L2 25 June 2015 Rocketry Warehouse DYOK, CTI L1030RL 14.7k ft mach 1.57

I'm addicted to building stuff, rockets are just a way to get high

Offline dbmccann

  • MRSI
  • Hero Member
  • *
  • Posts: 262
    • View Profile
Re: 2.6" Darkstar ~ Wildman Rocketry
« Reply #10 on: October 29, 2017, 11:22:41 AM »
Thats an awesome flight....making me miss my 1706 case.