Any Plans Available For LPR Tower?

Discussion in 'Competition Rocketry' started by TangoJuliet, Mar 4, 2017.

Help Support The Rocketry Forum by donating:

  1. Mar 4, 2017 #1

    TangoJuliet

    TangoJuliet

    TangoJuliet

    Well-Known Member

    Joined:
    Jun 26, 2016
    Messages:
    1,232
    Likes Received:
    2
    I'd like to add an adjustable Tower launcher to my gear, but the one Apogee sells seems a little steep. Does anybody have plans for a DIY on the cheap?
     
  2. Mar 6, 2017 #2

    Micromeister

    Micromeister

    Micromeister

    Micro Craftman/ClusterNut TRF Supporter TRF Lifetime Supporter

    Joined:
    Jan 19, 2009
    Messages:
    15,073
    Likes Received:
    18
    Gender:
    Male
    Location:
    Washington DC
    There really aren't any Dirt Cheap ways to create an adjustable, Accurate and Stable Competition Tower.
    There are several ONE Size only towers that aren't all that expensive but you need one for each body diameter your flying. I built mine from scratch using 10" diamter PVC Pipe rings with 1/4" Aluminuim stiffener rods and 1/2" x 3/8" x 1/16" 36" Aluminum Channels for the 5 adjustable internal rails. The thing ended up costing about 200.oo by the time I added a drop-down Piston base and 48" folding legs.
    There are lots of other style tower out there, One just needs to do some research and decide on What You want to do with your tower.

    Below are a few pics of a few different style towers you might get some ideas from:;)

    Comp Tower-n_Detail 13 pic pg_12-03 (Keep).jpg

    Novaar Triangular Tower 2-Pic_05-06-89.jpg

    USA Team tower-a_omnipad tower_12-03.jpg

    USA Team tower-b_rails_12-03.jpg

    MM Twin Tower-p3_Comb 2pic 128dpi_03-10-05.jpg

    MM Twin Tower-p5_Launcher at Middletown w Zvezdochka-sm_02-19-05.jpg

    Apogee Components 3-rail Tower-c @ Mt Airy, MD_10-06.jpg
     
  3. Mar 6, 2017 #3

    TangoJuliet

    TangoJuliet

    TangoJuliet

    Well-Known Member

    Joined:
    Jun 26, 2016
    Messages:
    1,232
    Likes Received:
    2
    Thanks John. I really like the one you show in photos 5 & 6. I did find the R&D papers on NAR that describe the tower that Apogee's is based on, but it's difficult to understand it's construction by the way it's written.
     
  4. Mar 6, 2017 #4

    samb

    samb

    samb

    Lifetime Member

    Joined:
    Jan 22, 2009
    Messages:
    3,417
    Likes Received:
    20
    Location:
    Plano, TX
  5. Mar 7, 2017 #5

    TangoJuliet

    TangoJuliet

    TangoJuliet

    Well-Known Member

    Joined:
    Jun 26, 2016
    Messages:
    1,232
    Likes Received:
    2
    Not being able to see what the plan is prior to spending money is a little weird, I think. I could assume that it is the same as tower in the R&D report, but we all know what can happen when you assume.
     
  6. Mar 7, 2017 #6

    samb

    samb

    samb

    Lifetime Member

    Joined:
    Jan 22, 2009
    Messages:
    3,417
    Likes Received:
    20
    Location:
    Plano, TX
    Being a cheap S.O. ... I mean frugal gentleman myself I would agree. But consider that you're looking for a specialized, limited use bit of kit in a niche hobby. Other than Apogee I think Giant Leap makes the only other commercially available tower: https://giantleaprocketry.com/products/components_launch_systems.aspx#Adjustable_Launch_Towers

    I would also guess that the craftsmen on here; the ones who go to the garage and throw nuts, bolts, aluminum and wood up in the air with a "Valar Morghulis" probably don't work from plans. The NARTS could be the only game in town. Might be worth pinging this guy to ask for a peek:

    NARTS
    Brad Cline
    1830 Suqulak Trail
    London, Ohio 43140
    (740)852-2784 Phone/Fax

    http://www.nar.org/about-nar/organization-contacts/
     
    Last edited: Mar 7, 2017
  7. Mar 7, 2017 #7

    TangoJuliet

    TangoJuliet

    TangoJuliet

    Well-Known Member

    Joined:
    Jun 26, 2016
    Messages:
    1,232
    Likes Received:
    2
    Well, there's another supplier I hadn't heard of before. Thanks.

    From what I've been seeing of the different designs I've been able to locate, I think I may just try to cobble together something on my own. I'm pretty sure I can come up with something for less than what they're being sold for commercially... Perhaps not, it's just something I kind of wanted to play with. I don't see me competing anytime soon, or at all more than likely (I haven't competed since the mid/late 80's when I was a teen), so it's not a big priority item to have. Then again, I recently took my girlfriends 5 year-old grandson with us to launch rockets and he's already asking when we're going again. It might be time to help him build a rocket of his own :wink:.
     
  8. Nov 7, 2018 #8

    Ez2cDave

    Ez2cDave

    Ez2cDave

    Well-Known Member

    Joined:
    Jan 18, 2009
    Messages:
    218
    Likes Received:
    7
    Shoot me an email and I'll be happy to send you a Dropbox invitation for lots of tower info.

    Ez2cDave@aol.com

    Dave F.
     
  9. Nov 8, 2018 #9

    caveduck

    caveduck

    caveduck

    semi old rocketeer

    Joined:
    Jun 6, 2011
    Messages:
    969
    Likes Received:
    11
    I put together a 2nd gen 6' tower a few years back (based on one I did in 1980 for the internats) using precision 1" aluminum tubes, plywood rings, radial threaded rod for adjustment, a bunch of wingnuts-n-bolts, and a set of homemade Delrin bushings for the runner blocks guide that the threaded rod. It's supported by guy lines on the upper ring rather than rigid supports (which works great BTW). The aluminum tubes were the only expensive part at about $100 for all 3. Total cost was probably under $140. It will handle anything from 10-13mm diameter models all the way to 3" HPR. The 1" tubes are REALLY rigid and can be adjusted very precisely. Unfortunately I don't know of any published plans...
     
  10. Nov 8, 2018 #10

    bibbster

    bibbster

    bibbster

    Well-Known Member

    Joined:
    Jan 23, 2018
    Messages:
    123
    Likes Received:
    1

Share This Page