Re: JL Chute Release - Consensus on marking flight cards?

LW Bercini

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Question for your LCOs out there...what are people putting on flight cards when flying with a Jolly Logic Chute Release? Locally, I am seeing the term "tethered", but elsewhere I've heard it referred to a a "dual deploy"

What is the consensus?
 

rstaff3

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NARHAMS sees enough of them that 'chute release altitude' is a field. At MDRA I check altimeter and add a note in the comments section.

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Buckeye

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It's still "dual deploy." Two deployment "events" occur. Dual = Two. Doesn't matter how the events are triggered.

Are you collecting some statistics from the flight cards? Otherwise, what difference does it make?
 

Rex R

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I have seen flight cards, one for low power, and a different one for high power. the HPR had all the fields/ boxes for deployment the LPR cards having only type of recovery. of the lpr crowd that is moving up to mid power (and the chute release) generally isn't familiar with letting the rso/ lco know ahead of time what to expect of their rocket flight...the unknowing lco might be calling for a heads up thinking that the bird is coming in hot. so asking flyers to indicate a chute release in use helps the launch krew.
Rex
 

Lowpuller

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LW

So far I have just been listing JLCR set at 200'.






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rharshberger

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And you haven't had a rocket smack Terra firma yet? I modestly suggest you use a higher release if flying in a
larger rocket. Takes longer for the laundry to open. Kurt
Setting your JLCR is knowing what works for you. I set mine to 200-300' quite often and have had no issues due to folding style, chute materials, etc. Most of my chutes are .75oz ripstop nylon,with 6 to 8 gores, when flaked folded and the shroud lines z-folded inside the chute, they open quick.
 

LW Bercini

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I have seen flight cards, one for low power, and a different one for high power. the HPR had all the fields/ boxes for deployment the LPR cards having only type of recovery. of the lpr crowd that is moving up to mid power (and the chute release) generally isn't familiar with letting the rso/ lco know ahead of time what to expect of their rocket flight...the unknowing lco might be calling for a heads up thinking that the bird is coming in hot. so asking flyers to indicate a chute release in use helps the launch krew.
Rex

Exactly where I am with my builds. Hence my reason for asking how people are marking their cards.

Having just used a JLCR for the first time, it made me nervous that I could not tell whether the laundry had fully ejected during most of the descent. In the future, I'm going to add a streamer so that I know everything has ejected.
 

Zebedee

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Exactly where I am with my builds. Hence my reason for asking how people are marking their cards.

Having just used a JLCR for the first time, it made me nervous that I could not tell whether the laundry had fully ejected during most of the descent. In the future, I'm going to add a streamer so that I know everything has ejected.

If you did know - would it make any difference to the flight?
 

cwbullet

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Personally, I like to know the mechanism or brand so I can advertise for the business. Besides that, i do not care. It is a method of dual deploy in my book.
 

lcorinth

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That's generally the same note we see in Massachusetts and Maine.

It took me a while before I realized I could just write "JLCR 400'" instead of writing out the words "Jolly Logic Chute Release set for 400 feet." Which is good, because as Kenn can tell you, I have terrible handwriting, and the less of it I have to do, the better.
 

lcorinth

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No it would not affect the flight, just my reaction to it. But at least I would not waste any anxiety over a flight that is appears to be working as planned.

+1 this. I kind of think that in rocketry, surprises are best kept to a minimum when possible.
 

KennB

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It took me a while before I realized I could just write "JLCR 400'" instead of writing out the words "Jolly Logic Chute Release set for 400 feet." Which is good, because as Kenn can tell you, I have terrible handwriting, and the less of it I have to do, the better.
Don't worry, your writing is better than many and you don't throw a lot of extraneous info on the card. JLCR is one of the newer abbreviations I've had to learn but so many use it that happened quickly.
Let's hope Maria doesn't interfere with the next Berwick launch.
 

Lowpuller

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Kurt

Your missing out on all the excitement. Part of the challenge and fun, at least for me, is bringing it in low but having packed your canopy appropriately to open and slow everything down for a soft landing. I have found 200' works well for most mid power. Of course you have to use common sense.

I also like to use really "big" canopies.

We had an open spot landing contest at one launch with some very open rules. I was able to open my LP rocket at 100' and slow it down enough to prevent damage. It was very exciting to watch.

Having said all that, again common sense is vital and safety has to be primary.


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ksaves2

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Kurt

Your missing out on all the excitement. Part of the challenge and fun, at least for me, is bringing it in low but having packed your canopy appropriately to open and slow everything down for a soft landing. I have found 200' works well for most mid power. Of course you have to use common sense.

I also like to use really "big" canopies.

We had an open spot landing contest at one launch with some very open rules. I was able to open my LP rocket at 100' and slow it down enough to prevent damage. It was very exciting to watch.

Having said all that, again common sense is vital and safety has to be primary.


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I've seen several hit that were not mine. Cardboard rocket usually is damaged. You're right, smaller rockets and chutes may be more amenable to this. I did have a formula 54 that had a CATO and blew the NC at about 100', CR released but not enough
altitude to get the chute open. Rocket repaired from the burn through with a coupler and still flies. It's exciting to watch stuff as long as it's not yours! :wink: Kurt
 

woferry

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I always mark that it's a Chute Release and the altitude (and check the DD box), so my flight cards will have something like "Chute Release @ 500'". Though I usually note my main altitude even though the groups I fly with don't have a dedicated space for it, so even when I fly with my StratoLoggers or Eggtimer Quantums it will say something like "StratoLogger CF, main @ 700'" or something like that.
 
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