L3 experiences, advice, or just general ponderings…

Forums Knowledge Base L3 experiences, advice, or just general ponderings…

  • This topic has 79 replies, 13 voices, and was last updated 10 years ago by John A. Wilke.
Viewing 10 posts - 11 through 20 (of 80 total)
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  • #53439
    Bret Packard
    Participant

    Bruce (or anyone else who has built a 5″ PR kit) – Did you use an aero-pack retainer on either of your 5″ PR kits? It says the flanged version requires 5″ of clearance to install and I want to make sure that the tubing has a full 5″ inside. I am a big aero-pack fan for bigger motors. I use home-made brass strip hook retainers on alot of my 29 and 38mm rockets, but I want a top notch retainer for this one.

    #53440
    Bruce R. Schaefer

    Yep, I used an Aero Pack on both 5″ rockets. You can’t go wrong with using them. Lord knows if you could, I would have done it. Hey, and use those “nut inserts” that Conway mentioned. Secure beyond belief. I may have some left over; if not, check out http://www.rivetsinstock.com/rivet47.htm, we’ll talk. I was able to get the riveter at Harbor Freight. They may have the right riv nuts there, but you have to get just the right ones. As I said, we’ll talk at the next meeting in Jan. I’ll bring what I have left, maybe it’ll be enough. Need what’s left of what’s left, ’cause I’m not done yet. 😉 Worse comes to worse, Brett, I can unscrew my 5″ Aero Pack from one of my birds. Just remember, you’re not alone in this.

    #53441
    Bruce R. Schaefer

    Brett, do you have your 2 TAPS (Art, JW, James, etc.?) or your NARcc (James, Lionberger, etc.?) and co-signer onboard? I’ll co-sign you via NAR, after a successful flight. This is critical. You mentioned 29mm and 38mm motors; have you flown at least a 54mm? More questions will come, but they must come from them. Anything I have is yours to use, as with most of our members, if not all. Awh, crap, just checked, my membership expired in September of this year. 🙄 You can still borrow what you you need from me. 😉

    #53442
    Warren B. Musselman
    Moderator

    I took my time.

    Nailed my L1 first try, took 5 tries to get my L2 (lost 2 of them although one of the lost ones probably was a good flight – didn’t find it for 16 months – the others were stupid flyer mistakes) and nailed my L3 on the first try. I should say that before I built my L3, I was primary “contractor” for the composite work on a large group project that successfully flew on an O at BALLS.

    I will repeat – I took my time. I didn’t rush the project. I didn’t rush myself. I waited until I was pretty much 100% sure that I could build a structurally sound bird with reliable dual deploy with redundant altimeters (not required at the time).

    By the way, I did use an Aeropac retainer and will probably never use anything else except for minimum diameter projects. Absolutely bomber.

    Warren

    #53443
    Bruce R. Schaefer

    I waited until I was pretty much 100% sure that I could build a structurally sound bird with reliable dual deploy with redundant altimeters

    And, man, he did. Nailed the heck out of it. Warren is a great example of doing it when you want to. He certainly could have done it years ago. Again it IS a personal journey. No one gives a poop what level you are, just that you love rockets. It really is as simple as that.

    #53444
    Bret Packard
    Participant

    Yes Bruce, flown plenty of stuff up through K’s. Never flown an L but only because I haven’t come to terms with a tracker yet. I have an almost complete 3″ all glass DD bird that I plan to fly my first L in, but I’m not willing to risk the flight until I get my hands on a decent tracking device. Hoping to do that at Mayhem. Also have an extreme wildman that I bought during that Black Friday sale he had. That baby will be built for M’s too but fly on L’s until I do my L3. My intent is to build the extreme wildman exactly as I plan to build my L3 bird, then figure out what I like and what I want to improve on.

    #53445
    Bruce R. Schaefer

    You’re good to go!

    #53446
    Steve Jensen
    Participant

    In the club, we’ve at least 5-8 guys with Garmin Astros and DC-20/DC-30 Dog collars.

    I’ve sent up four different rockets with the tracker this year. I’ve tracked one four miles from the launch area. I feel I would have lost at least two of these rockets without it.

    If you get a dog collar (about $150 for a DC-30) I’m sure one of us will be out at each launch with their Astro to track it.

    You are welcome to use my Astro. We can also walk you through its use in about ten minutes. They are truly amazing.

    You can fit one in its original packaging (minus the collar…) in a 54mm coupler. I stuff them in the nosecone of my birds, which have included a Performance Little Dog Dual Deploy (4 flights); PML Sudden Rush 4 flights; my Stang — 3 inch, five-fin scratch built FG; and a Performance Arrow.

    I’ve thumped both my DC-30’s pretty hard. Once in apogee deploy only–main failed– resulting in a flat spin to the deck (last launch…) and the other in an apogee stuck separation and ballistic main deployment resulting in a piece parade to the ground. Both DC-30’s survived.

    I am planning on sending up my first L Shot using it. I would feel uncomfortable doing so without a tracker.

    #53447
    Bruce R. Schaefer

    Check with whomever will be certifying you. You have to land within an area cylinder to cert successfully, for some, or most, or all. I don’t remember. I think it may depend on whether you’re going NAR or TRA, only your cert people will know for sure. ❓ After that, however,…

    #53448
    Chris LaPanse

    Check with whomever will be certifying you. You have to land within an area cylinder to cert successfully, for some, or most, or all. I don’t remember. I think it may depend on whether you’re going NAR or TRA, only your cert people will know for sure. ❓ After that, however,…

    Yes, but the radius is 2 miles for the standard waiver, and 5 for the extended, so that’s only really a concern if you’re pushing the limits of the standard (and don’t have the extended) or if you dump the main at apogee or something.

    Oh, and my L3 rocket has flown 4 times since my L3 last Mayhem, on 3 Ms and an L. Just because it was my L3 rocket doesn’t mean that I’m going to go easy on it. Next Mayhem, it gets an N (and not a wussy one either). I figure why build a rocket to fly only once?

    As for Aeropacks? My L3 is a 5 inch loosely based on a PR Intimidator 5, and the 98mm Aeropack fits perfectly.

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