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  1. #1
    Join Date
    27th December 2014
    Location
    Portland, OR
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    175

    Arreauxbee-Hi Build Thread

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    Hello Everyone!

    I have only ever done a few build threads, and felt like doing a new one. I was able to get one of the new Arreauxbee-Hi kits through my local vendor as soon as they came out. It has been on the shelf for a few months now, but I finally broke it out this weekend to inventory the parts and start weighing them for sims (which I figured I would need to do from scratch since its so new). I don't see any builds on here for it yet, so here we are =)

    I immediately have questions about this steel wool ejection cooling mesh stuff. I have been doing mid and high power for 4 years now and while I haven't built any Aerotech kits, I'm surprised I've never heard of it on here or through RSO duties. Does it work? How long has Aerotech been shipping it? Does it use up motor casing length capacity? Even with it, can I really go wadding-less? Looking forward to learning about it.

    Anyhow, no photos yet, but I'll get the first round posted tonight. I plan to build it completely stock including the motor mount, cosmetic conduits, and paint. Internally, the only change will be a 3/8ths by 15' flat kevlar harness from OneBadHawk Recovery. I also plan to go step by step with the simulation for people looking to learn more about OpenRocket basics.

    Cheers,

    Brian

    Brian Clark
    NAR# 99120 | TRA#16112 | KI7GSE
    L1: Estes Scion Bash - CTI H42 - September 18th, 2015
    L2: PML Explorer - CTI J330 - October 17th, 2015

  2. #2
    Join Date
    27th October 2009
    Location
    Brigham City, UT
    Posts
    2,348
    I had the original Aerotech Areaux with the metal mesh and for me it worked fine for parachute ejection without wadding.


  3. #3
    Join Date
    18th November 2014
    Location
    Somewhere in Ohio
    Posts
    982
    It's a great rocket!

    I'm still working on mine. I'm doing some mods.
    I'm getting new fins, centering rings, and shock cord, so that it can handle some H motors. I'm also upgrading it to dual deploy.

    First flight will hopefully be this fall on an Aero-Tech H115DM.


    Thanks,
    Andrew - 14 year old rocketeer who loves to watch and fly model rockets all year long!!!
    2018 - 663.62 Ns _ Biggest motor, AT H115DM, (CATO on pad), highest flight around 3,500' - TRA Member #17056 - NAR Member #94787
    Owner, Andrew's Rocketry Shop - andrewsrocketryshop.blogspot.com

  4. #4
    Join Date
    19th January 2009
    Location
    San Diego, CA
    Posts
    2,670
    I built mine completely stock.

    The cooling mesh has been part of every AeroTech kit since they were first released. It has always worked well for me.

    The elastic shock cord works fine.
    I speak as a 'knowledgeable' person about this kit.


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    Bob

  5. #5
    Join Date
    18th November 2014
    Location
    Somewhere in Ohio
    Posts
    982
    Quote Originally Posted by Initiator001 View Post
    I built mine completely stock.

    The cooling mesh has been part of every AeroTech kit since they were first released. It has always worked well for me.

    The elastic shock cord works fine.
    I speak as a 'knowledgeable' person about this kit.


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    Very well designed kit!!!



    Thanks,
    Andrew - 14 year old rocketeer who loves to watch and fly model rockets all year long!!!
    2018 - 663.62 Ns _ Biggest motor, AT H115DM, (CATO on pad), highest flight around 3,500' - TRA Member #17056 - NAR Member #94787
    Owner, Andrew's Rocketry Shop - andrewsrocketryshop.blogspot.com

  6. #6
    Join Date
    27th December 2014
    Location
    Portland, OR
    Posts
    175
    Quote Originally Posted by Initiator001 View Post
    I built mine completely stock.

    The cooling mesh has been part of every AeroTech kit since they were first released. It has always worked well for me.

    The elastic shock cord works fine.
    I speak as a 'knowledgeable' person about this kit.


    Click image for larger version. 

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    I wondered if you would chime in =)

    It is a very cool kit indeed. Between you and Aerostadt's response above, I will definitely give the mesh a go. With it installed, what will I be limited to in terms of casing length? I would love to be able to fly my CTI 29-4gr case.

    Thanks,
    Brian Clark
    NAR# 99120 | TRA#16112 | KI7GSE
    L1: Estes Scion Bash - CTI H42 - September 18th, 2015
    L2: PML Explorer - CTI J330 - October 17th, 2015

  7. #7
    Join Date
    9th April 2011
    Location
    Mansfield, TX
    Posts
    2,734
    CTI in an Aerotech kit? Blasphemy! All kidding aside, I want one of these. I build my own years ago out of a LOC Aura and only got one flight out of it. I cracked a fin and didn’t want to mess up the paint by repairing it.
    Jarrett Dorough

    Lover of 29mm motors and wood glue

  8. #8
    Join Date
    13th February 2018
    Location
    OC
    Posts
    110
    Quote Originally Posted by bclark989 View Post
    I wondered if you would chime in =)

    It is a very cool kit indeed. Between you and Aerostadt's response above, I will definitely give the mesh a go. With it installed, what will I be limited to in terms of casing length? I would love to be able to fly my CTI 29-4gr case.

    Thanks,
    If that kit comes with a 12" MT, you'll be hard pressed to run a 4G CTI case without modifying the kit in some way. Aerotech specifies to stretch the mesh to ~6". The biggest complaint about the mesh cooling is that it eventually gets compressed or clogged with ejection caps and then fails to eject. Both of these to me are user error but my point is you don't want to over-compress the mesh. You also don't want to cut the mesh down to the point that it fails to do it's job and ruins your elastic/parachute.

  9. #9
    Join Date
    2nd January 2017
    Posts
    51
    Quote Originally Posted by OC_Rocket_Man View Post
    If that kit comes with a 12" MT, you'll be hard pressed to run a 4G CTI case without modifying the kit in some way. Aerotech specifies to stretch the mesh to ~6". The biggest complaint about the mesh cooling is that it eventually gets compressed or clogged with ejection caps and then fails to eject. Both of these to me are user error but my point is you don't want to over-compress the mesh. You also don't want to cut the mesh down to the point that it fails to do it's job and ruins your elastic/parachute.
    All you have to do is use a section of stiff wire....make a corkscrew at on end. Then simply "screw" it into the mesh and pull it out. Run it under hot water to clean the stainless mesh....dry and put it back into your rocket! I actually purchase the AT mesh system and use it in ALL my smaller rockets! It is the best baffle system for low and mid power! Basically the mess can be easily pulled out..cleaned...restretched....and put back into your motor tube. Simple as that!
    Andrew K

  10. #10
    Join Date
    18th November 2014
    Location
    Somewhere in Ohio
    Posts
    982
    Quote Originally Posted by OC_Rocket_Man View Post
    If that kit comes with a 12" MT, you'll be hard pressed to run a 4G CTI case without modifying the kit in some way. Aerotech specifies to stretch the mesh to ~6". The biggest complaint about the mesh cooling is that it eventually gets compressed or clogged with ejection caps and then fails to eject. Both of these to me are user error but my point is you don't want to over-compress the mesh. You also don't want to cut the mesh down to the point that it fails to do it's job and ruins your elastic/parachute.
    I may be wrong, but I believe the MMT is 15 inches long.

    I'll measure it when I get to my workshop.


    Thanks,
    Andrew - 14 year old rocketeer who loves to watch and fly model rockets all year long!!!
    2018 - 663.62 Ns _ Biggest motor, AT H115DM, (CATO on pad), highest flight around 3,500' - TRA Member #17056 - NAR Member #94787
    Owner, Andrew's Rocketry Shop - andrewsrocketryshop.blogspot.com

  11. #11
    Join Date
    27th December 2014
    Location
    Portland, OR
    Posts
    175
    Okay, finally getting this show on the road. Unfortunately, the mesh we talked about above really was going to greatly limit my motor options for this rocket, so I have decided to ditch it and the forward baffle piece (which I left in the component photo accidentally) and go with a more standard setup for the harness attachment.

    To start, here are shots of the components and a dry fit:

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    The instructions say the Finlok rings might be tight on the MMT tube, but it was pretty excessive, so I removed the outer layer of the tube (which is great for adhesion anyways. I marked the lines indicated by the instructions and test fit everything. This included a line running a length of the tube for proper rotational alignment of the Finlok rings:

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    The instructions call for you to attach these components by beads of cement in all of the corners, but doesn't say anything about adhesive underneath where they are actually in contact. I did a little wiggling to get some epoxy in underneath, but mostly just built up good beads as it stated. This was done with simple 5 minute epoxy:

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    Once epoxy was in place, I test fit the fins, repeatedly going around to all three mounting points to ensure alignment and correct spacing.

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    For the harness mount, since I am no longer using the mesh and baffle, I drilled a hole in the forward centering ring and installed the provided eye screw.

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    To complete the MMT sub-assembly, I used Titebond II to install the forward centering ring on the MMT tube, about 1/4" aft of the very top of the tube. Once it is fully cured, I will measure the exact position for simulation purposes. I will also go back later and reinforce the eye screw attachment point with more 5 minute epoxy.

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    That's it for now. The next step will be installing the MMT into the lower air frame and installing the fins.
    Brian Clark
    NAR# 99120 | TRA#16112 | KI7GSE
    L1: Estes Scion Bash - CTI H42 - September 18th, 2015
    L2: PML Explorer - CTI J330 - October 17th, 2015

  12. #12
    Join Date
    27th December 2014
    Location
    Portland, OR
    Posts
    175
    Quote Originally Posted by rockets View Post
    I may be wrong, but I believe the MMT is 15 inches long.

    I'll measure it when I get to my workshop.


    Thanks,
    My MMT is 12". I am not quite done rounding up all the component info, but will have it all soon and can start building the sim file.
    Brian Clark
    NAR# 99120 | TRA#16112 | KI7GSE
    L1: Estes Scion Bash - CTI H42 - September 18th, 2015
    L2: PML Explorer - CTI J330 - October 17th, 2015

  13. #13
    Join Date
    18th November 2014
    Location
    Somewhere in Ohio
    Posts
    982
    Quote Originally Posted by bclark989 View Post
    My MMT is 12". I am not quite done rounding up all the component info, but will have it all soon and can start building the sim file.
    Oops, my mistake.

    Mine is also 12", I just thought for some reason that mine was 15".



    Subscribed to the thread!



    Thanks,

    Andrew - 14 year old rocketeer who loves to watch and fly model rockets all year long!!!
    2018 - 663.62 Ns _ Biggest motor, AT H115DM, (CATO on pad), highest flight around 3,500' - TRA Member #17056 - NAR Member #94787
    Owner, Andrew's Rocketry Shop - andrewsrocketryshop.blogspot.com

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