MY MARS LANDERS

Discussion in 'Low Power Rocketry (LPR)' started by BWP, Jan 13, 2019.

Help Support The Rocketry Forum by donating:

  1. Mar 23, 2019 #31

    Gary Byrum

    Gary Byrum

    Gary Byrum

    Overstable By Design

    Joined:
    Aug 4, 2011
    Messages:
    6,318
    Likes Received:
    181
    Gender:
    Male
    Location:
    Lincolnton NC
    First of all, those CR's on that motor mount are crap. I quit using those 100 years ago. I always use Letramax rings or make my own. Very dependable and much easier to work with.
    Now, any time you are going to use composites in low power tubes, they need to be reinforced. Anything that comes in direct contact with the heat & fire can be coated on the inside with thin CA. I made a swab and dipped it in a container wide enough to get the swab in. Fast moves are essential now. Coat it quick and leave it alone. It might dry slick as glass like mine did, or they might dry a little gritty. You WILL want to lightly sand any rough areas.
    My swab was prolly 2" wide.
    Schwabb.jpg
     
  2. Mar 26, 2019 #32

    Ted Cochran

    Ted Cochran

    Ted Cochran

    Well-Known Member

    Joined:
    Jan 22, 2009
    Messages:
    417
    Likes Received:
    25
    FWIW, I did a 24mm motor mount on the Semroc ML that I steam plunked. I bored out the nose cone and added an ounce of lead shot and epoxy to improve stability.
     
  3. Mar 26, 2019 #33

    Gary Byrum

    Gary Byrum

    Gary Byrum

    Overstable By Design

    Joined:
    Aug 4, 2011
    Messages:
    6,318
    Likes Received:
    181
    Gender:
    Male
    Location:
    Lincolnton NC
    I used a fishing weight.
     

    Attached Files:

    • 1.JPG
      1.JPG
      File size:
      90.4 KB
      Views:
      46
  4. Mar 26, 2019 #34

    gary7

    gary7

    gary7

    Well-Known Member

    Joined:
    Aug 2, 2009
    Messages:
    559
    Likes Received:
    9
    Gender:
    Male
    Location:
    Mahomet, IL
    Ted, have any pics of your steampunked ML?
     
  5. Mar 26, 2019 #35

    K'Tesh

    K'Tesh

    K'Tesh

    OpenRocket Chuck Norris

    Joined:
    Mar 27, 2013
    Messages:
    12,655
    Likes Received:
    397
    DYK? Semroc is coming out with a mini version of the Mars Lander (uses 13mm motors IINM)? If not, let me be the first to tell you they are.
     
  6. Mar 27, 2019 #36

    BWP

    BWP

    BWP

    Well-Known Member

    Joined:
    Feb 1, 2009
    Messages:
    85
    Likes Received:
    11
    Ted C, my hat is off to you for the 24mm mount on the ML. I thought about doing that, but it seems to be a bit challenging for my skill level. Except for the CATO, I was very happy with the Quest 18mm composites, both the D16 in the Estes Outlander and C12 in the Semroc ML. I also have an 18mm reloadable casing that I'll try on these 2 in the future.
     
  7. Mar 27, 2019 #37

    BWP

    BWP

    BWP

    Well-Known Member

    Joined:
    Feb 1, 2009
    Messages:
    85
    Likes Received:
    11
    Thank you to Quest for their good customer service. They are sending me a replacement pack of D16 engines. They stated they have seen very few of these forward delay sealing issues.
     
  8. Mar 30, 2019 #38

    Ted Cochran

    Ted Cochran

    Ted Cochran

    Well-Known Member

    Joined:
    Jan 22, 2009
    Messages:
    417
    Likes Received:
    25
    Sure. There’s a Sport Rocketry article on Steampunking from about 3 years ago that has more details.
     

    Attached Files:

    JERRYR708 and Cl(VII) like this.
  9. Mar 30, 2019 #39

    Cl(VII)

    Cl(VII)

    Cl(VII)

    Chris Bender, Lab Rat TRF Sponsor

    Joined:
    Feb 22, 2013
    Messages:
    4,039
    Likes Received:
    155
    Those are incredible!

    Ah, why can I only "Like" a post once! Massive understatement here.
     
  10. Mar 30, 2019 #40

    davdue

    davdue

    davdue

    Forum Supporter TRF Supporter

    Joined:
    Aug 17, 2010
    Messages:
    670
    Likes Received:
    49
    Gender:
    Male
    Location:
    Valley Center, Ks
    I know this thread is in the low power section but I have to post this picture. A couple Kloudbusters built this lander. It’s about 6’ tall and flies on an M motor.

    IMG_8483.JPG
     

    Attached Files:

    roc_boy, JERRYR708 and cbwho like this.

Share This Page