RED GLARE VII

[skycopp]

It always seems to workout that way......
I should have some free time by then.


JD

The idea is to use the christmas tree for the holidays.... then get it ready for launch. Not the other way around.

Should make great conversation at the dinner table instead of talking about Auntie Mabel's hysterectomy.

"You're going to do WHAT with that tree?!?!"

 

[THarrison]

Great day today. Perfect flying weather. Buttercup was up and away on what was supposed to be an M1800. It appears there is an issue with my formula. She did hit 3600 feet and land in the mud.

Pic Attached

If you want the RAW file email me at trh2h at virginia dot edu

If anybody flew off the away cell Sunday, there it a good chance I have a shot of your flight. I have some of the bigger flights off the C rack too. Email me at the above address and I can send it to you.

 

[skycopp]

Pic Attached

If you want the RAW file email me at trh2h at virginia dot edu

If anybody flew off the away cell Sunday, there it a good chance I have a shot of your flight. I have some of the bigger flights off the C rack too. Email me at the above address and I can send it to you.

Sweet PIC!!!

Onboard video... https://www.davdi.com/helpdesk.exe

 

[rocketsaway]

Id like to buy a vowel, pls.

 

[JDcluster]

Why does the first 12-18" of the exhaust look black ?
Too much binder in a Blue motor, or it just the way the light hits it?


JD

 

[THier]

My AMRAAM has been recovered!!!!

Thanks Jim C.

Tom

 

[skycopp]

Why does the first 12-18" of the exhaust look black ?
Too much binder in a Blue motor, or it just the way the light hits it?


JD

I think just the way the light hits it.... but yes, does look wierd.

 

[patelldp]

I think just the way the light hits it.... but yes, does look wierd.

Looks a lot like too much binder. The smoke at the pad is dark as well. This appears to be a purple motor?

 

[ben_ullman]

well, acording to the MARSA altimeter the Big Nuke stretch broke apart at 1009 feet. And the motor probably went 10k feet

Ben

 

[MaxQ]

well, acording to the MARSA altimeter the Big Nuke stretch broke apart at 1009 feet. And the motor probably went 10k feet

Ben

Was it simply an early seperation of the fin can and nose portion...or somthing structural?
I don't remember the flight history on this one...was this a repaired rocket?
Maybe that had something to do with it?

 

[ben_ullman]

Was it simply an early seperation of the fin can and nose portion...or somthing structural?
I don't remember the flight history on this one...was this a repaired rocket?
Maybe that had something to do with it?

The only things salvaged from the first Big Nuke crash were the fins and nosecone. My dad rebuilt the whole thing. The joint that failed was a 10" extension added to the lower section. He fiberglassed and CF'ed it on. I am suprised it failed but it pretty much snapped clean at that joint. He wants to rebuilt it yet again. Im thinking we just need to order some fiberglass tubing from Curtis and call it done.

Ben

 

[brettkeller]

Great launch everyone! I piddled the month away rocketry-wise and didn't get Lunch Money (my 4" Endeavor) or my 2.6" Sandhawk into flying shape in time - it's always the pesky little things like motor retention that you put off until the last minute, and then you're missing pieces...

My girlfriend was going to come to her first rocket launch on Saturday, but the weather prevented it. However, I still got to come out with several friends for the day on Sunday and y'all really put on a good show. Especially liked the big flights - someone flew at M or N on the very last rack, right at dusk. Wow.

stantonjtroy--thanks for posting about that flight. I was close enough to see it all happen and it sure was scary. It's good to know there was nothing too unorthodox about the design or construction - I assumed it was a cluster as well from something I overheard from the crowd right afterwards. Go figure. Glad the kid's fine.

The flight I thought was scarier during the day was someone's (not sure whose?) N(?) flight that came in ballistic about 50 yards out from the right side of the flight line. I remember the chute deploying - or something like that on the way up - and knowing the whole time the thing was going up over the crowd that it had to come back down. And it went up a long time, and whistled on the way down. Basically luck of the draw at that point, which is never a good feeling.

Special thanks to Alex D (sorry - can't remember your last name) for helping my friend Erin fly her first rocket (an Estes StarStryker on a C6-5). Since I wasn't flying, getting Erin to pay $20 in flight fees to fly one model rocket seemed a bit steep! You made her day, and after the launch she kept talking about how nice rocket people were.

Brett Keller
NAR L2
https://dcrocketeer.wordpress.com

 

[ben_ullman]

Great launch everyone! I piddled the month away rocketry-wise and didn't get Lunch Money (my 4" Endeavor) or my 2.6" Sandhawk into flying shape in time - it's always the pesky little things like motor retention that you put off until the last minute, and then you're missing pieces...

My girlfriend was going to come to her first rocket launch on Saturday, but the weather prevented it. However, I still got to come out with several friends for the day on Sunday and y'all really put on a good show. Especially liked the big flights - someone flew at M or N on the very last rack, right at dusk. Wow.

stantonjtroy--thanks for posting about that flight. I was close enough to see it all happen and it sure was scary. It's good to know there was nothing too unorthodox about the design or construction - I assumed it was a cluster as well from something I overheard from the crowd right afterwards. Go figure. Glad the kid's fine.

The flight I thought was scarier during the day was someone's (not sure whose?) N(?) flight that came in ballistic about 50 yards out from the right side of the flight line. I remember the chute deploying - or something like that on the way up - and knowing the whole time the thing was going up over the crowd that it had to come back down. And it went up a long time, and whistled on the way down. Basically luck of the draw at that point, which is never a good feeling.

Special thanks to Alex D (sorry - can't remember your last name) for helping my friend Erin fly her first rocket (an Estes StarStryker on a C6-5). Since I wasn't flying, getting Erin to pay $20 in flight fees to fly one model rocket seemed a bit steep! You made her day, and after the launch she kept talking about how nice rocket people were.

Brett Keller
NAR L2
https://dcrocketeer.wordpress.com

That was my N flight at dusk that came screaming in. The body tube crunched and the lower booster section, fins, and motor kept going to 10-12k feet then right back down.

Ben

 

[THarrison]

That reminds me...

The reload I have is actually a replacement for my original one. One of my fellow club members borrowed and later replaced my reload when he found out the day before his launch that he wouldn't be allowed to L3 on a hybrid -- no way to verify the actual total impulse, in his case. Instead of redesigning his rocket to add a recording altimeter (IIRC), he just switched to an Aerotech case and used my reload. Now I seem to remember the original M1297W reload had a Medusa nozzle, but my current one doesn't. Did that reload used to come with Medusa nozzles, or is my memory playing tricks again?

UPDATE: The nice chap at Aerotech just called me back. Yes, these reloads used to come with Medusa nozzles. And my grains are indeed a little longer than the newer ones, so he recommended I stick with the fiber disk, not the metal one with O-ring, and told me how to make sure there are no gaps between the fiber disk and the phenolic liner tube. So I think we're go on that issue.

So what happened with this flight??

 

[TWRackers]

So what happened with this flight??

The motor worked flawlessly with the original parts.

The recovery, not so.

 

[H_Rocket]

So what happened with this flight??

The Ben effect. It's not a complete launch event unless a rocket dies horribly under Ben's careful ministrations. It's kind of nice as he is the simulated Aztec like priest with the obsidian knife poised over the altar to the rocket gods. He performs the sacrifice and for the most part the rocket gods are happy.

It's a heavy burden for so young an individual, though Ben holds up well to the challenge.

:neener:

 

[ben_ullman]

The Ben effect. It's not a complete launch event unless a rocket dies horribly under Ben's careful ministrations. It's kind of nice as he is the simulated Aztec like priest with the obsidian knife poised over the altar to the rocket gods. He performs the sacrifice and for the most part the rocket gods are happy.

It's a heavy burden for so young an individual, though Ben holds up well to the challenge.

:neener:

you are learning well young grasshoppa' :clap: :roll:

Ben AKA 'walks with CATOs'

 

[GaryT]

Some video of my THOR launch.

Motor N3700WB to 11,728'
https://www.youtube.com/watch?v=X2fwu8fLEog

 

[ben_ullman]

Very Nice Gary.

Ben

 

[cjl]

you are learning well young grasshoppa' :clap: :roll:

Ben AKA 'walks with CATOs'

I find it quite funny that you seem to have more failures than I have flights...

 

[THier]

Hey for you all having space issues (no pun intended) This 5x8 trailer will be for sale soon. I am getting a new trailer. I towed this trailer with the PT Cruiser a few times. BUT now that I have the Suburban, getting a bigger trailer.

Tom

New trailer will be ordered, (if the butt head sold the one I was looking at) when I get home from Beantown, My Wells Cargo 5x8 will be for sale VERY soon.

Tom

 

[ben_ullman]

I find it quite funny that you seem to have more failures than I have flights...

So you have flown two flights then? I have only had 3 failures that I can recollect. My dad has had one or two.

That may be jokingly and I don't know it but its all part of research. You win some you loose some. I probably have flown more than you and have more motor experience. But you have alot more experience than I do with overall flight caracteristics and diagnostics.

Ben

 

[cjl]

So you have flown two flights then? I have only had 3 failures that I can recollect. My dad has had one or two.

That may be jokingly and I don't know it but its all part of research. You win some you loose some. I probably have flown more than you and have more motor experience. But you have alot more experience than I do with overall flight caracteristics and diagnostics.

Ben

You win some and you lose some, but somehow, you seem (again, this is based on from what I've seen - and I could have sworn that you had more than 3 failures, since you've already had 2 major failures this year) to have far more bad luck than many of the more experienced and careful EX fliers that I know. I know you're enthusiastic, but if you took a little more care, and didn't try so many things at once, you wouldn't have so many failures.

Oh, and your failure this time sounds like it was either recovery or structural. That kind of implies that you have more problems than just with the EX motors.

 

[ben_ullman]

You win some and you lose some, but somehow, you seem (again, this is based on from what I've seen - and I could have sworn that you had more than 3 failures, since you've already had 2 major failures this year) to have far more bad luck than many of the more experienced and careful EX fliers that I know. I know you're enthusiastic, but if you took a little more care, and didn't try so many things at once, you wouldn't have so many failures.

Oh, and your failure this time sounds like it was either recovery or structural. That kind of implies that you have more problems than just with the EX motors.

I didn't build this rocket. My dad did. I told him to put a coupler in it, he didn't listen

The motor worked fine. The only major motor failure I have had was the N at LDRS. This was that motor, and huh, it worked.

The other motor failure was due to Orings being the wrong size. Didn't realize it at the time because they seemed to fit. (wasn't my nozzle, didn't know they were different)

I feel like your talking down to me. I don't see any of your flights? So far I have seen you cluster 2 K motors after 3 tries. The reason you may have more success is due to the little flight time. so far we (dad and I) have flown 2N's 4M's 3L's and countless Ks and Js this year with 3 failures. that seems like pretty good odds.

Working on flying my 2 stage Terrier Sandhawk now. the structural is all done. Need to put the finishing touches on the transition (align interstage rods, add aluminum blast plate) and build the Ebay board. Then its ready to go on a 6" O4500 to 2 grain 4.5" motor.

Ben

 

[MaxQ]

I didn't build this rocket. My dad did. I told him to put a coupler in it, he didn't listen

The motor worked fine. The only major motor failure I have had was the N at LDRS. This was that motor, and huh, it worked.

The other motor failure was due to Orings being the wrong size. Didn't realize it at the time because they seemed to fit. (wasn't my nozzle, didn't know they were different)

I feel like your talking down to me. I don't see any of your flights? So far I have seen you cluster 2 K motors after 3 tries. The reason you may have more success is due to the little flight time. so far we (dad and I) have flown 2N's 4M's 3L's and countless Ks and Js this year with 3 failures. that seems like pretty good odds.

Working on flying my 2 stage Terrier Sandhawk now. the structural is all done. Need to put the finishing touches on the transition (align interstage rods, add aluminum blast plate) and build the Ebay board. Then its ready to go on a 6" O4500 to 2 grain 4.5" motor.

Ben

Ben:
How many two stage flights have you done?

 

[cjl]

I didn't build this rocket. My dad did. I told him to put a coupler in it, he didn't listen

The motor worked fine. The only major motor failure I have had was the N at LDRS. This was that motor, and huh, it worked.

The other motor failure was due to Orings being the wrong size. Didn't realize it at the time because they seemed to fit. (wasn't my nozzle, didn't know they were different)

I feel like your talking down to me. I don't see any of your flights? So far I have seen you cluster 2 K motors after 3 tries. The reason you may have more success is due to the little flight time. so far we (dad and I) have flown 2N's 4M's 3L's and countless Ks and Js this year with 3 failures. that seems like pretty good odds.

Working on flying my 2 stage Terrier Sandhawk now. the structural is all done. Need to put the finishing touches on the transition (align interstage rods, add aluminum blast plate) and build the Ebay board. Then its ready to go on a 6" O4500 to 2 grain 4.5" motor.

Ben

I'm not trying to talk down to you, just to give you suggestions. As for the clustering 2 K motors in 3 tries, I have had the worst luck with that rocket at LDRS for some reason, and I honestly don't know why. It has worked flawlessly (and I have the pictures to prove it) every single other time that I have flown it. Besides, it's chute came out every time :neener:

(I've also corrected the igniter situation - I now have my own blend of thermite, and every motor I have tested it in has come up to pressure immediately)

Oh, and I've flown quite a bit this year, including a couple of 10k+ flights. Considering how busy I am in college right now, I'd say that's not half bad.

 

[ben_ullman]

I'm not trying to talk down to you, just to give you suggestions. As for the clustering 2 K motors in 3 tries, I have had the worst luck with that rocket at LDRS for some reason, and I honestly don't know why. It has worked flawlessly (and I have the pictures to prove it) every single other time that I have flown it. Besides, it's chute came out every time :neener:

(I've also corrected the igniter situation - I now have my own blend of thermite, and every motor I have tested it in has come up to pressure immediately)

Oh, and I've flown quite a bit this year, including a couple of 10k+ flights. Considering how busy I am in college right now, I'd say that's not half bad.

I know that Deuce comment was a low blow I still want to get mine made (i have all the parts im just lacking time) so we can drag.

Ben

 

[cjl]

I know that Deuce comment was a low blow I still want to get mine made (i have all the parts im just lacking time) so we can drag.

Ben

If you get it made, I'll drag race you. Commercial motors only though - I don't want mine destroyed by flaming debris.







:duck:

 

[ben_ullman]

If you get it made, I'll drag race you. Commercial motors only though - I don't want mine destroyed by flaming debris.







:duck:

going that low huh? :bangbang:

Hey, who had more space in the magazine? :neener: :roll:

Ben

 

[pmlkid]

this should be done by ex motors cjl you build your ex and ben do yours :jaw: