Exploring Estes ESAM-58 Upscale

Discussion in 'Plans' started by Mustang67, Oct 15, 2019.

Help Support The Rocketry Forum by donating:

  1. Oct 15, 2019 #1

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    I am interested in building an upscale Estes ESAM-58 FG 8" 14-16 ft. Would also like to build it to take a Loki 152mm 57.5 inch case. The kit is something I would have Wild Man make for me.

    This is a 8 fin configuration kit. What I would like input on is can this be built with the ability to fly in two different configurations? First configuration with the fins off set as shown in the photo, this being the original configuration. Second configuration with the fins aligned.

    I came up with dual configuration idea when I was trying to figure out the best way to transport it when built. If the fins were aligned it would make it easier. What I am wondering is can I build the booster in two pieces. The aft portion assembled with the first set of fins and a coupler tube slotted and glued in to this aft section. This assembly would slide into the fwd booster section and be secured with screws. The aft section would need to have two sets of slots and pre drilled holes to be able to rotate to either the offset or aligned configuration.

    Just started working on the RockSim file, FYI I am not highly skilled in RockSim but I am chipping away at it. Any guidance or input is greatly appreciated.

    Here is the kit, some photos and my current RockSim file.
    https://www.hobbylobby.com/Crafts-H...g/Rockets/ESAM-58-Model-Rocket-Kit/p/80959322

    IMG_20191014_202917.jpg IMG_20191014_202940.jpg
     
  2. Oct 16, 2019 #2

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    Please scan the fins and decals with a ruler for scale, along with the instructions. And I will see what I can do to help you scale it using OpenRocket.
     
  3. Oct 17, 2019 #3

    Arsenal78

    Arsenal78

    Arsenal78

    Well-Known Member

    Joined:
    May 8, 2018
    Messages:
    333
    Likes Received:
    54
    The Sasha and ESAM are similar with some minor fin add-ons to the Sasha (little dowel things) and the Sasha is two stage so it can be done if you use the Sasha to help.
     
  4. Oct 17, 2019 #4

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    Attached is the Rocksim file I started. And the scans you asked for.

    Thank you!
     

    Attached Files:

  5. Oct 17, 2019 #5

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    Scanned in a copy of the fins as well. See attached.
     

    Attached Files:

  6. Oct 17, 2019 #6

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    Thanks for the scans! I'm starting from scratch on the sim (prevents errors from scaling slipping in).

    I have a few other questions... It looks like the instructions are missing a page, I didn't see anything on the motors you'd use for the kit. How long are the launch lugs? Their diameter? The shock cord, length/width? Thickness of the fins? Length of the motor tube?

    Thanks again!
    Jim
     
  7. Oct 17, 2019 #7

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    Another problem just cropped up... I followed the link to Hobby Lobby, and it lists the motors. I was expecting 24mm motors, but it's an 18mm powered kit. I don't have any info on the retainer. I'm going to need a measured drawing about the cap and the retainer to allow me to accurately sim that.
     
  8. Oct 17, 2019 #8

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    I have an idea, please PM me your mailing address :D
     
  9. Oct 17, 2019 #9

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    I'm liking the sound of this...:D Check your inbox!

    Thanks!
     
  10. Oct 17, 2019 #10

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    Hi Mustang67,

    I've found a problem with the scans of the fins... The drawings give the fwd fins as 4.93"... The scan with the fin and the printable ruler give a number as 6.69". I'm more inclined to trust your numbers (4.93"), but I'm curious as to why there's a discrepancy.

    All The Best!
    Jim
     
  11. Oct 18, 2019 #11

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    HI Jim,

    Appreciate the assistance. To ensure you have the correct measurements I sent you a sample:D Package will arrive to you on Monday.

    Jerry
     
  12. Oct 18, 2019 #12

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    Hi Jerry,

    Thanks! So, did you really send one to China? or eRockets? Either way, I'm looking forward to getting it!

    Thanks Again!

    Pointy Side Up!
    Jim
     
  13. Oct 18, 2019 #13

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    On its way to China:D I will PM you the Fed EX TR# later.
     
  14. Oct 18, 2019 #14

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
    AWESOME!!! THANKS!!!
     
  15. Oct 18, 2019 #15

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    Thank you, I appreciate you helping out!!
     
  16. Oct 29, 2019 #16

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,807
    Likes Received:
    427
  17. Oct 29, 2019 #17

    Mustang67

    Mustang67

    Mustang67

    Lifetime Supporter TRF Lifetime Supporter

    Joined:
    Jul 5, 2016
    Messages:
    437
    Likes Received:
    78
    Gender:
    Male
    Location:
    Utica, NY
    Wow, impressive, great job and thank you Jim!! Looking forward to the build.
     
    K'Tesh likes this.

Share This Page