Sneak Peak: Jolly Logic's Easy Dual Deployment

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Normally I keep quiet about new products until I release them.

This is the first product that I've begun discussing this openly during development, partly because I myself introduced it at a couple of NAR Annual meetings and there was pretty intense interest and partly because I really needed everyone's help in making sure it would work well and be really easy and reliable.

While it demonstrates how much simpler secondary deployment can be, there's an inevitable amount of "complication" still involved with this product: how well the product works depends partly on how the rocket is built, the chute chosen, the packing, the ejection charge, the timing. It's still just one element (albeit a very carefully engineered one) in your overall deployment system.

In the User Guide, I'll list and illustrate what we've learned in clear terms, but I'll also encourage everyone to take responsibility for re-thinking your rocket deployments with Chute Release in mind.

For instance, I find myself thinking two things that I rarely/never thought before as I watch flights end:

1. "That chute could have opened a lot lower. That's some unnecessary parachute drift."
2. "That rocket could have landed more softly. I should use a bigger chute."

And also a third, occasionally:

3. "That rocket weather vanes into the wind so much that I should choose a higher deployment and let it drift back more to me."

Everything's still a go for December.

[Knock on wood.]
 
Admit it, you like teasing us!

I don't think so. I believe it's like a good practice to get as many bugs out of the design so's not to have to make a radical change after a lot of product is in customers hands. I want 2 or 3 of them.
I have two 38mm motored ASP WACs that are dying for one each. Kurt Savegnago
 
I hoped it would be evident I was not serious. I am very glad to be able to follow the development of this promising product!
 
It's an ingenious solution to a very common rocketry problem... I look forward to experimenting with chute release in several configurations in various situations. It'll add an entirely new dimension to recovery and precision landings. For me, that's what I get the most enjoyment out of, trying to accomplish certain goals and experimenting until I nail it. Can I hit that target grassy spot with this rocket on this motor with this deployment configuration? For a data geek like me, this is a dream. Super excited for this gadget. And I'm glad to be a part of this great hobby that encourages us to fiddle and gadget and invent and.... Yep. I'm a geek
 
It's an ingenious solution to a very common rocketry problem... I look forward to experimenting with chute release in several configurations in various situations. It'll add an entirely new dimension to recovery and precision landings. For me, that's what I get the most enjoyment out of, trying to accomplish certain goals and experimenting until I nail it. Can I hit that target grassy spot with this rocket on this motor with this deployment configuration? For a data geek like me, this is a dream. Super excited for this gadget. And I'm glad to be a part of this great hobby that encourages us to fiddle and gadget and invent and.... Yep. I'm a geek

Precision landings? Whad 'ya U been into? The only thing to hope for is a little less walking to pick the rocket up.:eyeroll: You missed the Master Blaster episode where they did the spot landing routine? Winds aloft can wreck havoc. Kurt Savegnago :wink:
 
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NVM = NOT a VIGOROUS MAN? I feel sorry for you sir. Should try geritol or viagra and Lawrence Welk would be proud of you! :rolleyes::) Kurt Savegnago

NVM= NeVer Mind, I have three kids the youngest is 10 months old, vigorous is not a problem. I dislike that it seems you can't totally delete a post, just edit one, cuz I would love to have deleted the original post since it was one of those DOH! moments.
 
NVM= NeVer Mind, I have three kids the youngest is 10 months old, vigorous is not a problem. I dislike that it seems you can't totally delete a post, just edit one, cuz I would love to have deleted the original post since it was one of those DOH! moments.

Three kids Rich? Oh yeah, you'll lose some vigor and hair soon.:facepalm: NVM my anagram humor as I think I forgot to take my atypical psychotrope today.:drool: Hmmmmm, or did I? :cyclops::confused::eek: Kurt
 
Three kids Rich? Oh yeah, you'll lose some vigor and hair soon.:facepalm: NVM my anagram humor as I think I forgot to take my atypical psychotrope today.:drool: Hmmmmm, or did I? :cyclops::confused::eek: Kurt

Three kids will do you in that's for sure (even more so since I am 44) , especially when trying to prep and chase rockets for 3 of us. That's what will make Jolly Logics new Chute Release a boon for me, no more really long walks to get the kids LPR rockets (I am going to start building only rockets sized for this unit to fit in).
 
I am going to start building only rockets sized for this unit to fit in.

BT-60 or larger, with at least 3 inches of tube above the wadding/baffle to put in the 'chute/Release package. A little more would be better. The Big Bertha I flew it in has the top of the baffle six inches from the top of the body, but the BB's nose cone has 1 3/4 inches of shoulder. There was plenty of room.
 
Way late to the game here, but just read the whole thread -- I cannot wait for this product! Well done, John. As someone mentioned, it will be PERFECT for DD of short stubby rockets. I've been toying with ideas for doing DD on my 6" Big Brute and had been debating between a Cable Cutter or somehow stuffing a main 'chute compartment AND an e-bay into the nosecone, both of which I was not comfortable with. This offers a great solution!!

I too have had spotty success with a Cable Cutter, both due to user error and tangling. I'm not comfortable with the tethering and external wires it requires. Too many failure points for me. This will be a simple, elegant alternative to that.
 
We don't take pre-orders at Jolly Logic, but if you have a reseller you like, ask them if they'll take pre-orders. You can see our resellers here. Madcow just became a reseller (not listed yet).

Apogee is the first reseller to indicate a firm interest in an initial quantity, so I've reserved units from the build for them. Others may follow as I notify them of details anout the launch and solicit interest in initial orders. Tim happened to be a tester and got first hand experience. So he is pretty enthusiastic about it, even just working with the prototype.

Price will be the same no matter where you buy: $129.
 
Just shot the wonderful people over at Apogee an email. Time to wait and see.

UPDATE: Apogee will not be doing a preorder because their shopping software won't handle it, and doing it manually is a logistical nightmare. (Been there myself) They will have a page setup for the Chute Release with a button that you can add yourself to the email list to be notified when it is in stock.
 
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ACK! $129 is a bit more than I thought it would be...Ok, A LOT more.

Guess I'm only buying one.

Still worth it to me. It'll save me from having to add e-bays and the like to rockets that don't have one.

-Dave
 
Agreed that $129 is quite a bit more than I anticipated, but I suspect that John's research, development, testing, and production costs were considerable. Of course that's an opinion with nothing to back it up other than my gut feeling. Perhaps, the price might change once those costs are recovered, or it might find itself on sale one day.

Still, I will buy one...
 
I was hoping they would cost less, too. However looking at the cost of an Altimeter Two or Three, it seems about right. This is a niche market and I'm sure the money won't be made on volume. I have no problem paying for the development and production. That being said....two.....ughhh....gonna do it. My wallet whimpers.

Dave
 
Yeah...that's enough to make one think a little harder - but having had a prototype in my hands for a time and flying it I can certainly see why the price is what it is. I will be flying one or two of them in the future for sure, both to keep mid-power models on my club field and to fly higher than I've ever dared before at the bigger sites over in eastern WA when I can. Compared to getting set up for dual-deploy (more logistics than necessarily cost) and knowing that it works as well as it does, it will still be a bargain for me.
 
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