egg fans unite

[denverdoc]

The proposed H999 eggloft got very little support today at the annual mtg. This does not mean we can’t fly our event. No official recognition, but anyone still wanting to do a technically challenging event, lets go for it. But same day, MHM. I say the last proposed rules by Doc Sutter–one flight, an H999, and altimeter readout.
JS

[Warren B. MusselmanModerator]

I think to start with, it is probably going to be a bigger challenge just to figure out how to pack an egg in a rocket flown on an H999. I’ll bet the yolk breaks inside the egg.

Warren

[denverdoc]

We talked about this last time–the consensus was the yolk didn’t matter. If the shell was intact, got a green. I thought and maybe chris has proved me wrong that keeping the yolk intact would require an extra “spring” in the system. Maybe not. So lets do it Warren, post up a MHM event with an H1000 ELA event.
JS

[Chris LaPanse]

If it’s an organized event, I’ll go H999. Otherwise, if it’s just kind of a fun event, I’ll go J1999. So, which will it be 😆

As for the yolk thing, I theoretically got an egg to well over 300 gees, and likely near 1000 (admittedly for a couple of milliseconds at best) and the yolk didn’t break. No guarantees for sustained accel, but it bodes well for the contest.

[denverdoc]

Chris,
Set up a rocket that goes 300 gees on Rocksim with an egg and whatever protection you have in mind, Ill buy the motor, if it humpty dumptys’s, pay me back.
JS

[Chris LaPanse]

I can’t get 300 – even a MD rocket with no payload will only do 230 on the I1299. I can get a solid 90-100 gees with the J1999 though, and I’ll do one better than just no broken shell: I’ll bet that neither the shell nor yolk breaks on that flight. I’ll look at some other possibilities to push the total above that, but no guarantees.

I’ll throw up an acclerometer too – a pico unit good for 120 gees to verify that it reaches the accel levels claimed.

[denverdoc]

Sorry, but 300 was the claim. Y know me. Produce a rock sim that shows 300G’s I’ll buy it.–provided its accelaration and not dee 😛

And a bit of a vent, I go point on this mission and there is no back up. I dont even recall Dale speaking up, who IIRC sugested this event, just left to dangle. I still suggest a MHM doc sutter event. One shot, H999, highest altitude, shell intact.
JS

[denverdoc]

ignore

[Chris LaPanse]

Sorry, but 300 was the claim. Y know me. Produce a rock sim that shows 300G’s I’ll buy it.–provided its accelaration and not dee 😛

And a bit of a vent, I go point on this mission and there is no back up. I dont even recall Dale speaking up, who IIRC sugested this event, just left to dangle. I still suggest a MHM doc sutter event. One shot, H999, highest altitude, shell intact.
JS

I challenge you to come up with a feasible rocksim that will do 300 gees, egg payload or not (note: commercial motors only). I can’t come up with one…

[denverdoc]

Off the top of my head w/o a calculator–a hexagonal array of outboard h999’s around a central longer tube, each producing approx 200#’s for a thrust total of 1400#. I believe even with the cases and motors the weight could be kept close to 4.5 # May be wrong, but thats the first thing that comes to mind. Interesting problem. The mass fraction for reloads is a tad low I think even with ultra high speed propellants.
JS

[Author]

Posts