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Thanks, that all makes sense. Ground tested that way with 1.2 g FFFF and deployment was perfect. Can't wait to fly it.
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CJ's Black Sat. "JIMBO" Jart 4 in.DD in NC [or any Jart build!
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I'm setting up my wildman with head end DD in this manner. I carefully set the. NC lightly on the coupler, marked it and glued the vent band on. After it set I checked it. Perfect slide right into place. A week later I drilled out the bulkplates and setup the av bay. Dropped the NC on for giggles and it slams hard with an 1/8" gap to the vent band.
Opps. Size the vent band with the bulkplates on. I feel like an idiot, but thought I'd let others learn from my experiance.
Opps. Size the vent band with the bulkplates on. I feel like an idiot, but thought I'd let others learn from my experiance.
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GRIFFIN
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It's not, I just feel dumb for missing it. I'm calm and being a bit silly. I'm going to bevel the edge of the plate a bit, should be fine.
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If you flip the coupler around does it fit?
GRIFFIN
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I did the same on all mine. Beveling the coupler edge with a disc sander works surprisingly well. Good luck with the build.
blackjack2564
Crazy Jim's Gone Banana's
I just went back to that step & edited it for future use. Guess I dropped the ball on that one, but I did not have that problem.
Some else at a launch was describing the same issue, but no one else had mentioned it, so I let it go. Now fixed!:face palm:
THANK YOU DIZ FOR pointing that out.
Was this on the Jart or another Wildman rocket where you had issues?
Could be the difference in BP cut,& fit on other kits, but in any case including the BP with fitting will resolve the issue.
Some else at a launch was describing the same issue, but no one else had mentioned it, so I let it go. Now fixed!:face palm:
THANK YOU DIZ FOR pointing that out.
Was this on the Jart or another Wildman rocket where you had issues?
Could be the difference in BP cut,& fit on other kits, but in any case including the BP with fitting will resolve the issue.
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Wildman 3". I wasn't at all trying to toss blame at you, sorry if it sounded like it. I just ran into an issue and wanted to share. Likely the smaller nosecone causes the difference. This is really a cool, cool way to build a rocket, thanks very much for sharing it with us.
blackjack2564
Crazy Jim's Gone Banana's
I fully understood where you were coming from. I did not think that at all, was just clarifying which kit you had issue with for others reading this.
Since many are referencing this thread to build the head end deploy for a variety of rockets, I wanted to make sure the BP recommendation was added to cover everyone.
ChuckH
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Or it could be due to the Wildman production variance, which is inversely proportional to the amount of Rumplemintz left in the bottle.
blackjack2564
Crazy Jim's Gone Banana's
Geesh Chuck... the guy who drinks German Kerosene throwing stones!:lol:
On a different note, how about some shots of your Jimbo Jarts guys?
I know quite a few have been sold . I flown mine now about a dozen times. A breeze to prep & fly.... turn around times extremely quick.
Here' some of mine:
Sometimes flying longer motors than will fit... requires a little shoe-horn to get them in.
AT J-825 Red in the 1080 case.
So a couple of masking tape shear pins to the rescue!
We did a drag race at Red Glare this spring on 4 grain 54's we all used different propellants. Wildman....Me.....David Reese.
Then again with Tim...Me.......Jason. This time we were "supposed" to all be using the same motors. BUT knowing Tim would cheat with a V-max, I started my White Thunder with some "pixie dust" & beat him off the line!!
Now let's see some pictures of your built Jimbo Jarts!!
On a different note, how about some shots of your Jimbo Jarts guys?
I know quite a few have been sold . I flown mine now about a dozen times. A breeze to prep & fly.... turn around times extremely quick.
Here' some of mine:
Sometimes flying longer motors than will fit... requires a little shoe-horn to get them in.
AT J-825 Red in the 1080 case.
So a couple of masking tape shear pins to the rescue!
We did a drag race at Red Glare this spring on 4 grain 54's we all used different propellants. Wildman....Me.....David Reese.
Then again with Tim...Me.......Jason. This time we were "supposed" to all be using the same motors. BUT knowing Tim would cheat with a V-max, I started my White Thunder with some "pixie dust" & beat him off the line!!
Now let's see some pictures of your built Jimbo Jarts!!
Hardline
Ecstatic and Joyous
Here is mine.....naked 
Hey CJ, that first pic is you, Wildman, and Cayemberg at Thunderstruck on J145SK-LBs. Here we are prepping in Tommy's backyard:
I was selfish and only shot a photo of mine during our drag race
Todd got some nice ones of my next flight on a 4 grain K600 blue.
And of course, the drag race with the pixie dust, a little bigger on the clickthrough:
Plus I flew mine today on a J350W. Did a really nice end-over-end flip on landing despite me upsizing to a 72" chute!
[youtube]xDw7rR40zZE[/youtube]
(Still haven't unpacked the camera after the move.)
I love this thing, it's so easy to prep. Gotta mix something for my 76mm 1, 1.5, or 2 grain cases for it next.
I was selfish and only shot a photo of mine during our drag race
Todd got some nice ones of my next flight on a 4 grain K600 blue.
And of course, the drag race with the pixie dust, a little bigger on the clickthrough:
Plus I flew mine today on a J350W. Did a really nice end-over-end flip on landing despite me upsizing to a 72" chute!
[youtube]xDw7rR40zZE[/youtube]
(Still haven't unpacked the camera after the move.)
I love this thing, it's so easy to prep. Gotta mix something for my 76mm 1, 1.5, or 2 grain cases for it next.
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Few mine today at same the location on a J449BS... I suppose it begs the question how was it we were not drag racing?:wink:
[video=youtube_share;cQuZ-6i-BLY]https://youtu.be/cQuZ-6i-BLY[/video]
Had a couple problems with recovery, can you guess what they were?
View attachment 180811
Yeah, the main stayed in the nose cone. Here's a closer look.
View attachment 180812
Never would expect that with the concave NC shape and all. You would figure once the bundle started on the way out it would just keep on sliding. Might of hung up a little on the nubs left from the shear pins. I also used a giant 18" nomex 'cause I have been scorching my 50" Recon with the 12" blanket and could not find a 14". I had the shock cord tucked forward of the main just like CJ suggests but that wasn't enough in this case. Just packed it too tight I guess.
Also, my drogue got really scorched; another malfeasance on my part.
View attachment 180813
Thought the blast shield would protect the drogue, but it looks like the backup charge nailed it good. Live and learn.
Now the cool part of all this was that even after landing on a melted drogue, my Jimbo Jart was still perfect; not a scratch! Ready to graduate from mildman 3G to 4G.
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Man if I had flown this first instead of my Caliber we would have even been on the same rack! I gotta pay more attention next time (Granted you had a nice new CTI motor and I had a 4 year old J350W which took ages to light, so I would have been way behind the curve!)
4g motors at 10 paces sometime in the next few months?
Of course, when I built mine, I had a little too much grog... combine that with some free epoxy from Al Gloer and... well... this happened:
So no guarantees this won't be a Wildman rules race
(Granted you had a nice new CTI motor and I had a 4 year old J350W which took ages to light, so I would have been way behind the curve!)4g motors at 10 paces sometime in the next few months?
Of course, when I built mine, I had a little too much grog... combine that with some free epoxy from Al Gloer and... well... this happened:
So no guarantees this won't be a Wildman rules race
Rrwjr
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My first flight was on a J380SS. It was my first flight with redundant altimeters.
After a couple of flights it earned its paint. I painted it red ( not to copy you Jim, it was a request). At LDRS I decided to fly it on a K513 black Jack.
I really like this rocket on smokies so I decided to go with a K530SS a week later at our club launch
I have also flown it on J430 white.
I see a K740 C-star in the future for the Jart.
After a couple of flights it earned its paint. I painted it red ( not to copy you Jim, it was a request). At LDRS I decided to fly it on a K513 black Jack.
I really like this rocket on smokies so I decided to go with a K530SS a week later at our club launch
I have also flown it on J430 white.
I see a K740 C-star in the future for the Jart.
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Sounds good... something with lots of sparks and smoke? Just happen to have an AT K540M looking kinda bored in my box; if I could just get a hold of one of CJs "special sauce" starters.
Of course, when I built mine, I had a little too much grog... combine that with some free epoxy from Al Gloer and... well... this happened:
View attachment 180864
So no guarantees this won't be a Wildman rules race
:y: K2000 Vmax!?
Yup... I'm in over my head... again
Hardline
Ecstatic and Joyous
Few mine today at same the location on a J449BS... I suppose it begs the question how was it we were not drag racing?:wink:
[video=youtube_share;cQuZ-6i-BLY]https://youtu.be/cQuZ-6i-BLY[/video]
Had a couple problems with recovery, can you guess what they were?
View attachment 180811
Yeah, the main stayed in the nose cone. Here's a closer look.
View attachment 180812
Never would expect that with the concave NC shape and all. You would figure once the bundle started on the way out it would just keep on sliding. Might of hung up a little on the nubs left from the shear pins. I also used a giant 18" nomex 'cause I have been scorching my 50" Recon with the 12" blanket and could not find a 14". I had the shock cord tucked forward of the main just like CJ suggests but that wasn't enough in this case. Just packed it too tight I guess.
Also, my drogue got really scorched; another malfeasance on my part.
View attachment 180813
Thought the blast shield would protect the drogue, but it looks like the backup charge nailed it good. Live and learn.
Now the cool part of all this was that even after landing on a melted drogue, my Jimbo Jart was still perfect; not a scratch! Ready to graduate from mildman 3G to 4G.
I enjoyed the video.
It is really amazing how a fiberglass rocket can "bounce" and bounce back. My first flight on my 38mm Dark Jart I sorta forgot to attach the parachute
(it was in Argonia last year and some people have never let me live it down....:smile. Anyway, it separated just like it was supposed to do and came down drogue-less to 700' where the main charge fired and then kept falling all the way down to the ground. I went and got it and found the parachute all nicely folded up right next to it in the field. So I attached the parachute and sent it up again!Needless to say, this year at Argonia I'll be double checking that parachute attachment point before I drag race CJ!
blackjack2564
Crazy Jim's Gone Banana's
Why yes.... there is.
Sharon [Hardline] & I flying on 4 grain 54mm White Thunder [K-940].
Would you care to join us?
Very nice, um... up-sized Jart. Bigger is badder
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