Activity

Most of what I posted is from a guy named Blackwell. He did a LOT of human visibility work during WWII, and had these elaborate experiments and rooms full of women as test subjects (the men were off at war)….   Read more»

Most of what I posted is from a guy named Blackwell. He did a LOT of human visibility work during WWII, and had these elaborate experiments and rooms full of women as test subjects (the men were off at war)….   Read more»

I really like Chad’s chart too. It matches up well my experience with doing troglodite style tracking at NAR contests, as well as HPR.Another practical example, i have a black rocket that is 2m * 98mm, which has good contrast…   Read more»

Awesome explanation and scientific reasoning – thanks Chad. One of the best aspects of our club membership is the different smarts everyone brings to the range.Wow, that is an excellent explanation. I spent a while looking for how to calculate…   Read more»

Awesome explanation and scientific reasoning – thanks Chad. One of the best aspects of our club membership is the different smarts everyone brings to the range. Seems pretty straight forward to me and demonstrates why I’ve been able to eventually…   Read more»

The resolution of the human eye is one line pair per 0.6 arc minutes (1/100th of a degree for a pair, 1/200th for a single dark line). However, that is for discerning a black and white line pattern. You can…   Read more»

If you’re looking for a range where you don’t have to worry much about it, I’d say probably around 1000′ for a small A rocket, 2000′ for a 38mm min diameter rocket. Above that, others could provide some estimates. Of…   Read more»

The more eyes looking, the more launches before you go (trend setters) and a bunch of other factors play into this. Pandora is around here somewhere. How big of a bird, how high does it sim to, how fast do…   Read more»

Golly gee, once they’re out of sight, what fun is it? LOL Rule of thumb for visual recovery is first fly a wind rabbit, then get all the extra eyes you can to watch. The color of the rocket and…   Read more»

I was wondering if anyone has any practical guidelines they follow/know of for what the maximum altitude for a given size of rocket might be to allow a reasonable chance for recovery by purely visual means.Obviously, the larger the rocket,…   Read more»

BALLS is a great event. Who is all going this year? I think I’ll pass, as it overlaps Oktoberfest and comes dangerously close to interfering with elk season this year………I’ve got a 54mm rocket that I have flown many times…   Read more»

Im looking at the L730 or the K590 Dual Thrust for my altitude shot. I only have my L1 so I was going to do my L2 Cert flight on something a little less exciting. I want to keep my…   Read more»

Friction fitting with tape really works quite well. I used to scoff at doing that, but I’ve probably done it over 100 times now… I seldom have a choice due to the fact that I fly minimum diameter almost exclusively.For…   Read more»

Epoxy the bulkhead in where the top of the longest casing will be. Then, just use an eyebolt, or eyenut with allthread to go through the bulkhead into the threaded closure.Ooops. Forgot the Pro54 doesn’t have a threaded front. I…   Read more»

That’s for damn sure. This is the best thing that could have happened to ensure we launch in May. Let it be 30″+ out at the North Site.Warren

Here here 🙂

Gee, I see WE are all getting our work done today…. Except I never went in. Agreed, the timing couldn’t be better for fire and flora. The trees haven’t fully leafed out yet, so minimal downed trees.Stay warm and off…   Read more»

That’s for damn sure. This is the best thing that could have happened to ensure we launch in May. Let it be 30″+ out at the North Site.Warren

You should know that movie. It’s supposed to be a certain body function and not laugh. But, I guess North would work.Assuming the snow is off the ground enough, I will still be heading up your way on Saturday. My…   Read more»

Winpy, BAAH, I laugh in your general direction….. 15/15 we don’t need no stinking 15/15, well, at least not yet…. 😛

Sooo……Would you be laughing to the north?

Winpy, BAAH, I laugh in your general direction….. 15/15 we don’t need no stinking 15/15, well, at least not yet…. 😛