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I tried the Rosco swivel once. It came back deformed, never spun, and looked like it was going to pull apart any second. I spend the extra and get good ball bearing swivels. They last more then...

Flying at BattlePark, I heard the bagpipes playing taps.

I have one rocket that looked like that twice. Only the nosecone from the shoulder up is original, but it's still flying. Good Luck

Welcome to the forum.
I am wondering about the statements above. I'm not sure about using a delay grain to separate the upper section. You can do that, but most delay grains are too long to be...

I had the same issue with a couple of 38/480 loads over the years. I have found it's an issue with my Dr. Rocket case. A phenolic liner that won't fit in a Dr. Rocket case, will slide right into my...

I get the used air bags from wrecked cars. They are designed to hold hot explosive gases already.

Terminal velocity for a rocket is about 300 mph, or 440 ft/sec. Here is the NASA terminal velocity calculator. You can even find TV for other planets.

If you know you only need 0.4g, then I would make sure I used only that much with the RMS motors. The SU may have twice that so they may cause deployment issues because of too large of charge. ...

Are you using the elastic shock cord? If so, check the nosecone for dents and dings. It may have snapped back and taken off the fin.

I would use a couple 6-32 t-nuts in the aft CR. Put them in from the forward side before you install it. Use a spot of epoxy to make sure they don't come loose. I would then get a couple of 1"...

As a Green Bay Packers Shareholder, I can tell you there is no better color scheme then Mustard Yellow and Forest Green!

Don't be so sure of the saucers. They do have a CP and hanging another motor can cause them to skywrite just like any other rocket, until the motor stages. (don't ask how I know that)

Sound similar to ours. One of our members build wireless boxes for us. We have two boxes with 5 pads each that we check each pads continuity at. We have a separate low power system that's not...

Very interesting the way you do the fins. I've never done fins with non-straight edges. The furniture maker is definitely coming out. Waiting on how you do the fin slots!

I also use my router...

Congrats on the L2! :cheers: :headbang: :cool2: :w:

Now for K at the next launch!

Interesting pad controller at 0:58. Looked like a modified ammo can in a kitty litter bucket. From the looks...

+1 on that Kevin.

At BattlePark, we don't do clouds. We never called in our waiver on one launch this spring because of low clouds. If it wasn't a class 1 that stayed below the 800 ft ceiling,...

You might want to look at
Binder Design Thug at 22 oz, Bat at 38 oz.
Public Missiles Limited Pterdactyl Jr at 39 oz

Wildman makes a fiberglass Gizmo at 5" diameter. I don't know if it is light...

If you decide to use the Aerotech 24/40 Reloadable Motor System (RMS) you will have to file down the forward end of the motor clip for it to fit into the stock Estes D sized motor mount. The body...

I went to a local junk yard (auto recycler) that lets you remove parts yourself. I just cut the used airbags out of one of the wrecks. Some places might give them away, but most will want...

I only have one APCP cluster that uses two motors. I make my own igniters because it's 29mm and I fly it on a pair of 29/40-120 and don't want to use the included copperheads. The only time I had a...

I just twist my two igniter together before clipping the leads on. Each one is held in its motor with the red caps. I do make sure the leads are loose enough to allow the rocket to get about half...

I haven't used baffles so I can't say if the side eject will burn the BT, but I would expect it would, eventually. My suggestion is to skip the baffles. For the cost of 2 or 3, you can buy a bale...

The last pair of air bags I got was $2 for two of them. I've only made 3 protectors so far.

I'm not sure how the NAR and TRA insurance works, but the vehicle damages that I've seen, the owner submits it to his comprehensive coverage and the rocket owner covers any deductible. At least...

Igniters and paint are definitely in the future. I built a 2x 29mm like the Deuces Wild. I have flown it on 29/40-120 only. I sand the slots in the grains, leave the sanded dust in the grains and...

I don't think it matters much. I watched a G-Force sized 4" rocket built from paper tubes have the shock cord break at deployment at about 800 feet. The lower part came down ballistic and went...

It took me 18 months to build one rocket, and it was just 4FNC. Since then, it's my most flown rocket. Keep at it, you'll get it done someday.

As beezwax said, doing a L2 in the same rocket that you use for L1 tends to result in high and fast instead of low and slow. My advice has always been to build a L2 rocket to do your L2 cert with,...

I've been flying a lot of rockets up to 4" and have never used shear pins. I've never had a drag separation or main deployment on a dd flight. If you are using motor ejection, a snug fit will work...

The Twister (tornado in a starter set) was my first rocket I had to assemble after becoming a BAR. Of course I had to fly it on a C6-7. I used binoculars and got both halves back on the first two...

If it passes self test and vacuum chamber, I would fly it. I use a HiAlt45 that survived a lawndart (not the altimeter's fault) and it still works perfectly.

I currently have two rockets that use...