Downscale Estes Pro Patriot

Discussion in 'Low Power Rocketry (LPR)' started by Martin Vrstal, Oct 1, 2003.

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  1. Oct 1, 2003 #1

    Martin Vrstal

    Martin Vrstal

    Martin Vrstal

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    This is a downscale scratch build of the Estes Pro Patriot. I downloaded the plans from JimZ's site and reduced the fins and Cr's by 85%.

    The original kit has a 3" BT. My plans call for a 2.6, BT80.
    Also the original uses a cluster of 4 D or E motors, I'm opting to go with 4-18mm C's.

    Sofar I have most of the parts built...Fins, CR's, shroud, and motor mounts.

    Here is a pic of the parts to date.
     
  2. Oct 1, 2003 #2

    Martin Vrstal

    Martin Vrstal

    Martin Vrstal

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    Here's a pic of it all dry fitted together. Total length is about 35.75".
     
  3. Oct 1, 2003 #3

    Martin Vrstal

    Martin Vrstal

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    ooops wrong pic...let's try this one:D
     
  4. Oct 1, 2003 #4

    sandman

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    Now that's a good scale project, Marty.

    Looks like ya got it pegged so far.

    Cool!

    sandman
     
  5. Oct 2, 2003 #5

    Stones

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    Marty...
    Did, by chance, you use a Executioner kit for the BT and NC? I thought about picking another kit up at HL at last weeks' sale but passed. Seems it would be a good one for this project. Looks great, by the way.
     
  6. Oct 2, 2003 #6

    Martin Vrstal

    Martin Vrstal

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    Thanks guys...

    Stones...nope..just parts I had on hand.
     
  7. Oct 2, 2003 #7

    gerbs4me

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    looks very cool Martin
    can't wait to see it all painted:)
     
  8. Oct 2, 2003 #8

    marvSRG

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    Very nice! Great quality on part fabrication...you do that all yourself?? I love the cluster, btw. The old Pro-Series Pat was neat-o.
     
  9. Oct 2, 2003 #9

    Micromeister

    Micromeister

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    Very Nice Marty:
    Can't wait to see it painted and maybe a liftoff pic;)
     
  10. Oct 9, 2003 #10

    Martin Vrstal

    Martin Vrstal

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    Finally got the Patriot built and all painted enough for some pictures. I still have a few touch-up's to do. Also I need to balance it out before a test flight.

    For those who are interested here's a lowdown on the parts.

    BT-80...27.25"
    NC-80K....Phoenix style
    MMT....BT-20...4X6"
    Fins....1/8th Balsa w/posterboard sheeting
    CR's.....3/16 Sturdy Board..Foamboard
    1/16 Basswood for very bottom CR
    Motor Hooks...Made from old Wiper Blade
    Recovery...3/8" Elastic and 18" Nylon Chute

    Total Wt. w/o motors or being balanced is 10oz.

    Here's a pic of the business end with 4-C6-3's installed.
     
  11. Oct 9, 2003 #11

    Martin Vrstal

    Martin Vrstal

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    Here's a pic of the rocket.
     
  12. Oct 9, 2003 #12

    Martin Vrstal

    Martin Vrstal

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    Here's the last for today.
     
  13. Oct 9, 2003 #13

    marvSRG

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    That is PURDY!! Love it! How'd you do the fins so well? Lots of work with the sander? Post a flight pic!
     
  14. Oct 9, 2003 #14

    Stones

    Stones

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    Real nice Marty! Let us know how she flys.
     
  15. Oct 9, 2003 #15

    Martin Vrstal

    Martin Vrstal

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    Marv.....The fins are 1/8" Balsa. There is a center rib glued halfway at an angle. The posterboard sheeting was resized along with the fin templets to 85%. The sheeting gets glued all along the edges and to the center rib at the fold line.

    Hope that helps.
     
  16. Oct 10, 2003 #16

    midpwrguy

    midpwrguy

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    Now martin it looks like a pro patriot built that pro patriot!:cool: Looks real good martin,You sure I did'nt make them fins.:rolleyes:
     
  17. Oct 10, 2003 #17

    Stymye

    Stymye

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    nice job Marty .
    inside and out!...launch pic is a must!
     
  18. Oct 10, 2003 #18

    sandman

    sandman

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    Marty, Super Job...I gotta comment like everybody else on the fins...they look especially GREAT!

    sandman
     
  19. Oct 10, 2003 #19

    maddogdelta

    maddogdelta

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    That is a pretty cool rocket cradle... Did you make it yourself?
     
  20. Oct 10, 2003 #20

    Martin Vrstal

    Martin Vrstal

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    Yes..I made it and a couple more useing 3/4 and 1/2" pvc and pipe insulation.
     

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