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Thread: PML Cirrus Dart Build

  1. #1
    Join Date
    19th June 2012
    Location
    Beeville, Texas
    Posts
    344

    PML Cirrus Dart Build

    I am just starting a build on a PML Cirrus Dart. I'm going for extreme speed and high atlitude primarily. Should be a very interesting build. Will be flying on I and J motors primarily. My focus is keeping it light as possible but very strong. This baby is all motor.

  2. #2
    Join Date
    19th June 2012
    Location
    Beeville, Texas
    Posts
    344
    Here's a pic of my PML Cirrus Dart before lamination and painting. I modified the original rocket to fly on the AT J570W motor. The piston system has been removed. The rocket is set up for electronic dual deploy. It utilizes GLR 38mm hardpoint, GLR chute blankets, 1/8" kevlar shock cords, Top Flite thin mil chutes, custom built AV bay, PerfectFlight Stratologger altimeter, BRB 900 GPS tracking system, GLR Slimline motor retainer, and Acme rail guides. The rocket is 60 inches long. It sims out at 10,283 ft altitude at Mach 1.76 on an AT J570W.

    Click image for larger version. 

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  3. #3
    Join Date
    9th January 2011
    Posts
    442
    How are the fins attached, tip-to-tip? Looks like a screamer to me, and very well built.
    The most merciful thing in the world... is the inability of the human mind to correlate all its contents.
    -H. P. Lovecraft

    Michael R.
    MDRA 0217 Price, MD
    CMASS
    NAR #87149 Level 2
    KB1WCD

  4. #4
    Join Date
    19th June 2012
    Location
    Beeville, Texas
    Posts
    344
    Quote Originally Posted by Cyril's Scribe View Post
    How are the fins attached, tip-to-tip? Looks like a screamer to me, and very well built.
    The fins are attached with Aeropoxy Epoxy glue straight to the outside body tube as this is minimum diameter rocket. I will be laminating the rocket tip-to-tip using Aeropoxy Laminating Resin. Yes, it should boogie.

  5. #5
    Join Date
    6th September 2009
    Posts
    241
    Most excellent. I will be looking forward to your flight report. I am planning a similar build to reach 2 miles altitude.

    How 'bout some pics of your av-bay?

  6. #6
    Join Date
    19th June 2012
    Location
    Beeville, Texas
    Posts
    344
    Quote Originally Posted by Buckeye View Post
    Most excellent. I will be looking forward to your flight report. I am planning a similar build to reach 2 miles altitude.

    How 'bout some pics of your av-bay?
    the AV bay is pretty simple.....some body tube, 3 couplers, two bulkheads, 6 countersunk SS #6 screws, six #6 PEM nuts, air holes for the altimeter, a pull rod hole for the altimeter switch, an external sonic locator speaker, and a thin wooden sled - that's about all one has room for inside the 38mm tube. I'll post some pics of it as soon as I get all the avionics installed in it so you can see the layout.

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