SHOULD HAVE BEEN AN AWESOME LAUNCH- BUT

darn for some reason i cant view those files,, any advise?

Click on the original links to download the rocksim files (or right click - save link as). Copy the files to the designs folder of rocksim or the folder you downloaded open rocket to. You should be able to view with rocksim or open rocket (free download). I flew the 7 d's rocket quite a bit till the chute got stuck in the tube and it came in hot. The other one I just quickly designed for grins in RockSim to see how it would perform. I might build it some day but the fact that I could fly a K for less gives me pause. Here are jpeg images of them:

I get to use the big black parachute from the GFORCE on my MIRAGE build Dual Deploy. And the fins will work nicely on a 4" scratch build.

crazyed said:

Those Estes motors are pretty cool. I was surprised at the smoke and fire and noise they produce. And can be gotten at the Hobby Lobby for 40% off everyday.
Except when sold out of coarse. Pretty nice Mid_Power motor. Im going to cluster more of em.

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Four F15s makes this a high power rocket. Actually, even two F15s pushes it into high power due to the propellant weight exceeding 62.5 grams.

Zeus-cat said:

Four F15s makes this a high power rocket. Actually, even two F15s pushes it into high power due to the propellant weight exceeding 62.5 grams.

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I don't know about 2 F15s, there are motors listed (NAR list) with more than 62.5 grams of propellant, no longer considered HPR. With 3 an FAA waiver would be needed, propellant weight is over 125 grams.

While I am certainly no expert on the subject of clustering black powder motors, I have had good success with the following technique.

Because I have flown quite a few staged black powder rockets, I've managed to accumulate a good number of the older black tipped Estes Solar igniters. So the night before I wish to fly my 3-24 mm rocket (which I call The Global Warmer), I carefully solder long, stranded copper wire extension leads to each solar ingiter and test each one for continuity. Once I'm sure of continuity, I then solder these leads together in parallel forming two connection points for attaching the alligator clips in the field. I then insert the business end of each igniter into each nozzle, along with the Estes plastic plug and I'm good to go.

In the field and after using a good standoff on the launch rod, I loop these three sets of long leads into an inverted "U", down from the nozzles and up to a separate staking rod, to which I secure these leads with tape or a clothes pin. I make sure there is nothing that these leads can snatch on and then attach the alligator clips. The theory of this seemingly excessive exercise is to create enough slack in the electrical system so that if ignition isn't perfectly simultaneous it will hopefully allow each igniter a bit of time to ignite. Obviously, it also takes a good, fresh 12 volt battery.

Since I started doing this I have yet to experience an ignition failure or hangup as described by the OP. (Photos courtesy John Dyer)

I still laugh at myself when I think about that launch. I cant believe I wrapped those wires and clips the way I did. It took all the force of those F15's to rip the rocket loose. I will certainly use the estes plugs and igniters on Estes BP motors from now on as I spent $6bucks on those sonic igniters and they could have been put to better use. The whole thing cracks me up-Oh well -Like another said earlier in the thread--live and learn.
I have some of those Aerotech F44 motors ordered and I think they will do well in the new "shorter version of the 4-29SS" and I do think 2 F15-4 motors will put it up now too.
havin a Blast

So its about time to get this new shorter LOC 4-29SS back together. Shown is the section I had to cut out. I thought I would for sure replace it with a full section of airframe for a longer version. Might still do that but first Im going to put it back together the way it is. Re-install the chute and see how it does on the short version first with 2 clustered F44-8W single use motors( I have been wanting to try these for a while and this is a good chance, they are in route now). Might try 2 clustered F15-4 Estes BP also.Heck might as well try a few different combos. 4-D12's, 2-E16,E20, and a few other F combos. But before it gets 2 G's again in will be the longer or stock size rocket once again.
View attachment 252524View attachment 252528

And the 4-29SS is ready to go as the shorter by 13" version. I dont think it lost more than a couple oz. in weight. But im still going to give the F44-8s a go. A 6sec delay is best but only 4 and 8 are available. I hope its not coming in too fast at deployment. Got a pack of motors and looking forward to a pre spring launch. Pics include the F44 in the mounts- 29mm to 24mm adapters installed and my recent delivery.
View attachment 253218View attachment 253219View attachment 253220

crazyed said:

And the 4-29SS is ready to go as the shorter by 13" version. I dont think it lost more than a couple oz. in weight. But im still going to give the F44-8s a go. A 6sec delay is best but only 4 and 8 are available. I hope its not coming in too fast at deployment. Got a pack of motors and looking forward to a pre spring launch. Pics include the F44 in the mounts- 29mm to 24mm adapters installed and my recent delivery. <img src="https://www.rocketryforum.com/attachment.php?attachmentid=253218"/><img src="https://www.rocketryforum.com/attachment.php?attachmentid=253219"/><img src="https://www.rocketryforum.com/attachment.php?attachmentid=253220"/>

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Awesome! Looking forward to hearing this flight report and pics. Using MFs and ClusterFire?

marcusSRG said:

Awesome! Looking forward to hearing this flight report and pics. Using MFs and ClusterFire?

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It works The shorter version kicked of the pad on those F44-8w. We all thought it might not be enough power. One came up a bit late but Im used to that now. No pics. This was a heads up flight so all eyes on the rocket. Those little F's are great but do use your own starters. I had 2 misfires till I used my own
2 (q2g2)on the 4-29ss (luckily at the same time)popped but no ignition and another on the Eliminator. 4 F44-8W's in a full sized 4-29 would be a good combf coarse you gotta get em to light together. The average NS would be 176 vs 160 with 2 G80's. No Haz fee on the F's /Haz fee on G80. Of coarse totall NS would be much less but you get that big White lighting roar with the 4 F's. The F44 burn rate is like a blue thunder but with the smoke and flame of WL
What a great time we had flying in the sun in Feb, Tucson Az, mid week, mid month, SARA launch.View attachment 254581

Today the new 3" x 34" section of airframe arrives. The LOC 4-29SS will be a stretch version. Making it a little heavier but thats okay. Thinking about a new finish also.

marcusSRG said:

Awesome! Looking forward to hearing this flight report and pics. Using MFs and ClusterFire?

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Marcus, Those darned starters included with the F44's mis fire to often (my exp.) as they did this launch(popped but no ignition..Both at the some time,neither motor fired luckily). I put 2 -Q2G2 in secured with left over aerotech red caps and they fired off. I dont think its the starters themselves. I think they need secured up in the motor in a way that keeps them from popping out when they fire. Those F44's are nice little powerhouses. I have more coming but im using caps to secure them after 4 misfires(so far) using the rubber band method.

The LOC 4-29SS will maintain a good stability margin in the shortened version @5" forward of the CP with 2- G53-FJ10 Installed. So its going a bit higher than expected but thats all good.

Its back to stock length and flying awesome on those G64-10W motors. Im Having excellent reliability on the cluster firing with G64 and G53 motor reloads. That's 124grams of propellant and combined average impulse of 128ns.( Impressive flights on the G64).

crazyed said:

Marcus, Those darned starters included with the F44's mis fire to often (my exp.) as they did this launch(popped but no ignition..Both at the some time,neither motor fired luckily). I put 2 -Q2G2 in secured with left over aerotech red caps and they fired off. I dont think its the starters themselves. I think they need secured up in the motor in a way that keeps them from popping out when they fire. Those F44's are nice little powerhouses. I have more coming but im using caps to secure them after 4 misfires(so far) using the rubber band method.

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I've had multiple F44 and G74 starters fail when taped in securely. While the rubber bands are a poor method of holding them in, and I always use a wrap of tape, I think the main issue is that there simply isn't enough pyrogen on them.

Sorry******lost all personal pics to this thread to date

Loc 4-29SS flew again perfectly on 2 G53-10FJ's Tuesday fun launch.