Made my own chute protector(nomex off ebay) with a kevlar strap(Mule tape) to go around the quicklinks..

[86mustang408w]

Finally got some time to sit and make another one of these. Kind of thinking how I could attach it, I really don't like the sliver they put in them that the shock cord slides thru. So I added a length of kevalr shock cord(mule tape) after thinking nylon rope for a teather, at least it will slide around the quicklinks. Its not pretty but it will work, all by hand so it took a bit and could be nicer. It will look better if it was ironed out, but its job is to stop fire. So this works for now...

And on a spare pc tested out how I wanted the corner cut for the opening. Best thing was the width of the kevlar for width, then twice it's length thr other way, ill post pics if you ask of that..

And it came in a bag folded up, lol. So I rolled it out and lay it on a flat surface. Slowly the fabric is laying out flat without the crease marks in it. I should go over it with a iron to smooth it out, but haven't yet. Gonna make about 3 or 4 more for various sized BT's and chutes. They will all be interchangeable..

Added pics of how it will be setup for larger rockets. Def need a smaller size quicklink for the Big Daddy if I can find one, if not it stays like that. That chute swivel, I've pulled rubber tires out of the water with them, its not gonna break...

 

[Voyager1]

Nice work!

Looking at your second last image, is that the full length of your shock cord shown there? If so, then it looks a little short, unless there is more still hiding in the booster tube. Also, where you have the chute/blanket link connection, it appears to very close to the center of the cord. If this is the case, then the nosecone and body tube will hit each other while under chute after deployment.

 

[Hobie1dog]

 

[86mustang408w]

Nice work!

Looking at your second last image, is that the full length of your shock cord shown there? If so, then it looks a little short, unless there is more still hiding in the booster tube. Also, where you have the chute/blanket link connection, it appears to very close to the center of the cord. If this is the case, then the nosecone and body tube will hit each other while under chute after deployment.

I wasn't sure how long to make the shock cord for the Big Daddy mods. Its actually perfect its just the right length that it pulls everything out of the nosecone, but has enough room for it to eject without issues. Its right about 3.5 feet. I sat for a while mocking it up. I didn't want it so long that just the nosecone Flys out during ejection and everything stays out like it does stock. So I could add another foot, but after testing, it works!! Don't ask about the test run on a B4-4....lol! Its below I can't hide it, but the test was done safely, and it works. I could have done it other ways but I just sent it. I have another post with all the mods done on here.

 

[86mustang408w]

Thank you, with a little more tuning they will be a little nicer. But it works, and that pc of fabric was already used twice.

 

[Tractionengines]

That shock cord is very short. You don't want the cord to "fully extend" forceably, as the sudden stop at that point will stress the anchor points, or can zipper the tube. As @Voyager1 says, don't attach the chute at the middle, attach it closer to the nosecone, and let the fin section hang well below that. This gets the chute out quickly. Any cord not forceably pulled out of the tube will come out as the chute opens.

Also, Note that all factory ejection charges are NOT the same... different manufacturers are different, and bigger motors have bigger charges. That B4-4 was WAY under powered, and has a small charge. A C11-3 is the smallest motor listed for a STOCK big Daddy.

 

[86mustang408w]

I have many other posts about the Big Daddy. With all the mods the same, here it is today on a D12-3...I trust myself...



And with the Jollylogic Chute release!!

 

[86mustang408w]

That shock cord is very short. You don't want the cord to "fully extend" forceably, as the sudden stop at that point will stress the anchor points, or can zipper the tube. As @Voyager1 says, don't attach the chute at the middle, attach it closer to the nosecone, and let the fin section hang well below that. This gets the chute out quickly. Any cord not forceably pulled out of the tube will come out as the chute opens.

Also, Note that all factory ejection charges are NOT the same... different manufacturers are different, and bigger motors have bigger charges. That B4-4 was WAY under powered, and has a small charge. A C11-3 is the smallest motor listed for a STOCK big Daddy.

Ok, thank you for your time I will keep that in mind. This is basically a test rocket now, and after losing one at that spot, I wasn't losing another which is why I choose that wet day for soft ground and an extremely underpowered motor to test it. I wanted to experiment with a different setup but one with longevity too so when I build my other two all the bugs are worked out.

 

[86mustang408w]

Made 2 more. Found a better stitch technique and the last one only took about 45 mins to make.

 

[86mustang408w]

I've used them in flight quite a few times, they are holding up very well. Super happy with how these turned out. Also made a repair to the one I use for the Big daddy and Big Dog. It had small burn hole in it from me being in a hurry and not using any wadding or Dog barf. So I cut a small patch, laid it on top. And then just used CA(dripped some thin over the 1" x 1" patch I set on the protector) with everything on top of wax paper then let it dry for a few days. For small spots its perfect. I wouldn't advise this in the field, it needs a few days for the fumes to dull out first. But it worked, I saved that one. The other two are fine, I used a mix of wadding and dog barf.

 

[Raptor 2]

Nice flights on the las two videos. I low powered my Delta IV Heavy with disastrous results.
If you put a spill hole in the center of the chute it will help with decreasing the oscillating swing of the chute.

 

[86mustang408w]

Nice flights on the las two videos. I low powered my Delta IV Heavy with disastrous results.
If you put a spill hole in the center of the chute it will help with decreasing the oscillating swing of the chute.

Yeah I've since started doing that. I think it may have had one in it then, but the shroud lines burnt on the one video and it came down badly. But the chute protectors have held up! They have a few flights on them and its going well. Winters here So I'll probably make a few more. I'm still hand stitching them so it takes a while.

 

[86mustang408w]

Well had another test for my chute protectors. Took a pretty wild high power ejection & ride, and the results are below. Its fine, it wasn't pretty looking before but structurally its 100%. I still need a sewing machine they would look better, but oh well some are surprised I make them myself which was something I did to occupy my time really and save some $$$.

I'm very happy, I grabbed this one for the flight as it wasn't that pretty and it anything happened or if I lost it. It wouldnt have really bothered me that much. But it works great, I really like the loop that goes around the quick link, that held up well too.

 

[Ronz Rocketz]

Cut up old firefighter pants work if you ask the local FD.