Brad Morse

When I started this post, I had a solution in mind… but I don’t know if it is doable. See what y’all think of this:a.) Cut a hole in the airframe about the size of a dimeb.) Have a piece…   Read more»

Along similar lines, depending on the weight of the bird…How about heliarc welding an Acme rail guide to the outside of a slimline retainer? The acme has less frontal area than a traditional button. If you’re partial to the inherently…   Read more»

Here’s another thought. Position the end of the motor about 1/2″ into the tube – or – at least leave enough airframe exposed for a screw. It won’t fit — the motor won’t go into the tube, because the aft…   Read more»

Upon reading the initial question, I assumed the problem was only how to attach the button to the airframe securely, but I think there is more to it. How do you attach the button or something similar to the airframe…   Read more»

Depending on how you’re retaining your motor casing… you could make a plate (with a hole in the center to allow the nozzle through but small enough to retain the motor) and weld either a 1/4×20 nut or bolt to…   Read more»

I was going to say that after all the tip to tip is done, drill it for a pem-nut, install the Pem nut with a bit of epoxy. Install the button and screw, then grind off the bit projecting through…   Read more»

Oh, and I’m not sure if I’m insulted or complimented by the GEEK comment.Ha! that is a compliment. The UprOar was flown by the “League of Extraordinary Geeks”. Trust me, Ed– you’d know it if I insulted you 🙂

I hope this helps.Doug

It does indeed – many thanks! BTW, you should have something on your doorstep today…

I have also seen where glass is laid dry over a tube, and then a woman’s nylon stocking is stretched over the assembly, pulled tight and knotted on both ends. The epoxy then gets painted over the whole works. When…   Read more»

Perhaps one of the most incredible CATOS I’ve ever seen was at BALLS a couple of years ago. The name of the rocket was “Black Sugar” and it had a very (VERY) large motor. Patty N. got some photos of…   Read more»

An Estes Mosquito has a round nose cone.I have looked around on the internet and can onlyfind a BT80 size cone.Where can one find a 3″ or 4″ dia. cone?There is a 4″ Mosquito cone from Scotglass ($32), seehttp://161.58.140.84/components2.htmSuggest you…   Read more»

If you think about it, after you factor in bad weather, fire danger, the family, work and any of the other stuff that can stop a guy from launching. Then I think the average guy only gets to fly maybe…   Read more»

Bill Heath actually moved out to California. … Sad to see him go just like it will be sad to see John Wilke go but life calls sometimes doesn’t it?ArtIf you think YOU are sad to see JW go, you…   Read more»

I guess I’ll have to hold a lottery for the 1st units off the line.Hey Jim- I know you are bizzy so I just went ahead and did the lottery thing and golly gee I seem to have won the…   Read more»

Eyesinthesky wrote: I am reconsidering my choice for using only one altimeter for my larger projects…DougMy advice for all — including myself — is to “dance with who brung you”. If that means baro, then you need to go that…   Read more»

gotcha, accelerometer good, no accelerometer bad. does that put me back to the gwhiz?I am mostly horrified of accelerometers, and have seen them kill many more rockets than all baro units combined (editorial comment, but based on many observations).Speaking for…   Read more»

btw, i was BORN in iowa, it ain’t that bad …oh, wait, yeah, it is! 8OIowa is fine. It is the circumstances of my particular situation that prompted the editorial punctuation — not the geographical context. That aside, the rocketry…   Read more»

so, other than the mawd, what other data logging altimeters would you recommend?I’m the wrong guy to ask 🙂 I don’t do data logging. FWIW, I bought the MAWD (and later the HA45) because I needed something to fit a…   Read more»

That’d be a question for Jim, I think the list I posted was a partial list of features and benefits…. not sure what (if anything) is downloadable. Jim’s unit is pretty all-encompassing, so he may have you covered.I went away…   Read more»

I especially like the max velocity (in fps) reading. Pretty clever… it just takes the value from one reading and compares it to the prior value and converts that to feet-per-sec and stores the highest value.Earlier I had said I…   Read more»