NAR Event in 2007!

[denverdoc]

Chris, John, I agree. But remember I (and Russ) just recommended events. I didn’t say they couldn’t be different:

Look at these carefully, offer changes…

Personally, one of the few events I wanted to participate in was the E BG. There’s Nate, Dave2, Me, Chris?, and John? who were thinking about this event. Doesn’t mean we can’t have it. Just look at the Oktoberfest DVD and listen to the “Oooh’s and Aaah’s” Nate received from his flight, and deservedly so. I am just concerned and think it is important to please the majority. No one, and I mean NO ONE, can please EVERYONE, nor should you try. This is the club’s NAR event, and we need input from NCR members. This was a concensus vote. I made a duplicate post on CRASH-Talk, because members of CRASH were more supportive and enthusiastic than NCR members so far. I needed their input to start getting this off the ground. John, both of us should post here and duplicate on CRASH, if it calls for it. We can’t let this go on much longer, a week tops. Joe is going to need to promote the event, rockets have to be built, and we need to get into this. 🙂

If there was one event, E B/G would be it.
JS

[Chris LaPanse]

I have to agree on that. I have looked into some designs, and I think I have what I want to do picked out. It should be pretty fun, and the E BG’s have some real potential with the E6 motor.

[Dave Tjarks]

I’d choose B with the addition of the E BG. I’ve not flown one that big. 🙂

Bruce Markalewski brought us all cleaner bags when he introduced us to the wide world of flexi gliders. Now that was a fun learning experience.

I wonder if Bruce would have been able to beat Kevin K in E BG….

D2

[Chris LaPanse]

Couple seperate subjects: re the Eggs, it is doable, as I have argued from the beginning. But whether mother nature or the best thru-hole electronics balks first might be the best question. I seriously doubt any egg can survive a 1000 gees. But they are strong. With luck you can toss one over the roof on to grass without a splat, and who doesnt know that even the surest and strongest has a helluva problem crushing one in their hand purely with compressive strength. Now add a fingernail or even finger to the eqn its gooey sooey. But airframes are under symmetrical loads, at least at zero degrees, so theres a lesson.

Well, based on some fairly solid math, I got well over 300 gees for sure, and likely around a thousand on a test I did. Not sure what more I can say…

I was stunned that the yolk didn’t break though. I was extremely confident that the shell would survive (note to all: fluid cushioning works), but I wasn’t expecting the yolk to survive as well.

What more can i say? Well the math is wrong, it follows from point mass assumptions that neglects certain real world issues, first and foremost: that the decelleration was linear, and can be treated algebraicaly vs with calculus, ) that the egg shell didn’t deform and store elastic energy, granted thats tough to swallow but bone is surprisingly flexible as well,3) that the receiver didn’t help in the same way–watch an egg throw competition, it’s not like a line drive to the SS. The receiver allows the egg to slowly come to rest by moving with the catch. So whether its soft dirt or tupperware the flex here has to be considered. Another way to look at the same issue is with energy: the kinetic energy of a falling body/time to stop is impulse. If Doug could do some high sped vids, that might shed some light.

Heres to the first Denver Omelette competition,

Well, I can guarantee you that the egg didn’t deform, as it was perfectly supported. It was suspended in a mixture of maple syrup and water that exactly matched the density of the egg. This essentially guaranteed that the egg would not break at almost any acceleration level. The container that the egg was in certainly deformed, it even cracked (tupperware). However, this is taken into account as the stopping distance. As for linear accel, if the acceleration was nonlinear, the peak would have been even higher than the average, so that does not mean much with regards to this. If I had a high speed camera, I would take some video of another equal impact to show the deceleration – that could shed some light on the subject.

[denverdoc]

Chris,

We both saw the solution to this from the beginning. I think thats cool and we should get brownie or boy scout points for this.

Your point about ave acceleration is well taken, it has to be even higher at some point. I didn’t know that the egg was contained, but I still think there is some overestimate rolled in. But nevermind.

So guys can we fly this event? I said it was possible, Chris has proved it, can we get it on at MHM–the Denver Omelette Challenge. Icarus can also live on but can we spice things up ?
John

[Chris LaPanse]

I’ll be in, and I have a couple of potential designs that are easily in the 100g range. 200 gees is possible, though expensive (my only 200g design involves a J1299 and 6 H999’s, which at 1800lbs average thrust is a bit scary 😯 )

[Bruce R. Schaefer]

Guys, the Warp 9 egg loft has its own forum. What does this have to do with the NAR event NCR is hosting in June? You’re killing me here! 🙂 Focus, focus, focus… 😉

[Chris LaPanse]

This is a forum, you mean we’re actually supposed to stay on topic ❓ 🙄

[denverdoc]

Yea, Sorry Bruce, my adhd must be kicking in, and seems like the egg loft keeps getting overlooked cuz we might be flying this other contest, so the two keep getting intertwined in my mind. For those of you who don’t read the Crash forum, I threw out the following candidates to consider for a NAR contest sr (and team) division:

Open spot landing
E B/G (R/C allowed)
D Streamer duration
F Superroc Duration (possible E for A/B division)
Random duration
E Eggloft Duration

In addition it was proposed that we throw in one or more non-NAR events for guys wanting to fly HPR contest, such as a beer loft or the like. But it could also be the Denver Omelette Challenge if MHM is too busy–I know I have 2 large projects scheduled for that w/e and possibly helping with another.
JS

[Bruce R. Schaefer]

Yea, Sorry Bruce, my adhd must be kicking in, and seems like the egg loft keeps getting overlooked cuz we might be flying this other contest, so the two keep getting intertwined in my mind.

Me, too! 🙂

Open spot landing
E B/G (R/C allowed)
D Streamer duration
F Superroc Duration (possible E for A/B division)
Random duration
E Eggloft Duration

This is good, John. Although we need to keep the events down to 4. Open Spot Landing is great, I personally like the E B/G Duration. D Streamer Duration is good, but we probably should keep the Super-Roc down to E for expense for some of the competitors as well as construction time and materials. Should we do an egg or dual egg loft for the NAR event? Because I’m going through some personal stuff right now, I’m not able to give all this the right amount of attention right now. I think all the other events can be arranged and voted on; the only one I’m concerned with is if we should do an egg loft. Personally, I think they’re fun for all ages. And, as far as offering high power contests, the idea is worthy; however, the high power pads will be up and running… why should we further complicate the issue? Besides, this is in Warren’s territory. It is totally up to him on whether he wants to do anything contest-wise on that June launch date. Just my opinion.

[Author]

Posts