Forums: Skydiving: Tandem Skydiving:
Tandem main canopy open at 9,000ft

 


peanutt  (D 23872)

May 8, 2011, 5:17 PM
Post #1 of 21 (2993 views)
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Tandem main canopy open at 9,000ft Can't Post

I am a new tandem master with about 100 tandems. I had a premature opening the other day out of a C-182. I did a through gear check before gearing up and checked my handles before exit. The video shows a clean climb, although we did flip on exit. When I threw the drouge, it released immediately. After I checked the canopy, I checked and found both drouge releases fully seated in they're hard housings. I did, however, notice that my passenger was unusually low and the student release housing was pulled straight by the lateral connections. My question is, is it possible that extra tension on the hard housing pulled the release even though the ripcord was fully seated? This is the only possible explanation I can come up with. Has anybody else had this happen? any input would is appreciated.


deadwood  (D 9930)

May 8, 2011, 8:27 PM
Post #2 of 21 (2854 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

What type of rig?


peanutt  (D 23872)

May 8, 2011, 8:38 PM
Post #3 of 21 (2848 views)
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Re: [deadwood] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Strong. Sorry about that. I meant to put it in the original post


spootch  (C License)

May 8, 2011, 8:41 PM
Post #4 of 21 (2846 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
I am a new tandem master with about 100 tandems. I had a premature opening the other day out of a C-182. I did a through gear check before gearing up and checked my handles before exit. The video shows a clean climb, although we did flip on exit. When I threw the drouge, it released immediately. After I checked the canopy, I checked and found both drouge releases fully seated in they're hard housings. I did, however, notice that my passenger was unusually low and the student release housing was pulled straight by the lateral connections. My question is, is it possible that extra tension on the hard housing pulled the release even though the ripcord was fully seated? This is the only possible explanation I can come up with. Has anybody else had this happen? any input would is appreciated.

Strong dual hawk??

did you look at the loop? was it there?


peanutt  (D 23872)

May 8, 2011, 10:25 PM
Post #5 of 21 (2808 views)
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Re: [spootch] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Yes it was a dual hawk. and yes the loop was there. the secondary release was through the loop and the primary was not when we landed. as I said earlier, both releases were fully seated in the housings. That was the first thing I checked after checking the canopy. my passenger was wearing one of the older harnesses with the long strap on the top connection points. I am assuming that's why he was so much lower than normal.


spootch  (C License)

May 9, 2011, 1:32 PM
Post #6 of 21 (2659 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Hmph... dunno, a hard housing wont "stretch" that far without having obvious signs of damage. I could see it if the super tack failed at either end of the housing. You may want to check. Its also very possible the handle was snagged on something during exit, or the sneaky bugger pulled itLaugh


NovaTTT  (D 17887)

May 9, 2011, 1:41 PM
Post #7 of 21 (2649 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Is the drogue release handle attached with a bungee?

If so, a snag on the plane or the pax flailing could have pulled the handle enough to clear the dogbone and the bungee would keep the handle in place.

Just a thought.


Halfpastniner  (D 30747)

May 9, 2011, 1:57 PM
Post #8 of 21 (2638 views)
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Re: [NovaTTT] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
Is the drogue release handle attached with a bungee?

If so, a snag on the plane or the pax flailing could have pulled the handle enough to clear the dogbone and the bungee would keep the handle in place.

Just a thought.

+1 that was my first thought as well


peanutt  (D 23872)

May 9, 2011, 3:20 PM
Post #9 of 21 (2601 views)
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Re: [NovaTTT] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
Is the drogue release handle attached with a bungee?

If so, a snag on the plane or the pax flailing could have pulled the handle enough to clear the dogbone and the bungee would keep the handle in place.

Just a thought.

I hadn't thought of that. Thanks. It didn't really cause a problem. I'm just trying to prevent it from happening again. Luck for me it happened in May and not in Janurary Laugh. Thanks agtain for the input. I'm learning quite a bit from reading the other threads as well. There is a lot of usuful info here for someone starting out.


bqmassey  (Student)

May 10, 2011, 5:07 AM
Post #10 of 21 (2429 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

I'm just curious, how did the conversation with the passenger go?


peanutt  (D 23872)

May 10, 2011, 6:35 AM
Post #11 of 21 (2397 views)
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Re: [bqmassey] Tandem main canopy open at 9,000ft [In reply to] Can't Post

I explained to him that the parachute open early and that we had a while before we landed. he seemed to really enjoy the canopy ride. Luckily we were over my home town, so I was able to point out some land marks while trying to make the best of the situation. one good thing, we had a lot of time for practice flares Laugh


solodude59  (Student)

May 10, 2011, 7:14 AM
Post #12 of 21 (2379 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Any chance he got a coupon or something for a little more freefall on the next jump...? Wink


swoopgaz  (E 1964)

May 10, 2011, 7:26 PM
Post #13 of 21 (2242 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Ever thought that the drouge release wasn't through the end of the loop and it wasn't picked up on a pre flight check.


towerrat  (D 28189)

May 11, 2011, 1:27 PM
Post #14 of 21 (2114 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Another thing to add from personal experience. Make sure the velcro is mated properly under the mudflap on the instructor handle. Check it every time. Twice during my early days I forgot to make sure the velcro was properly mated. Loose velcro, 120 mile an hour wind and boom....premie. Stick your finger all the way under the mudflap and give it a good press on EVERY jump.Make sure it's ALL the way in there and mated properly. What happens is the wind starts to catch the orange handle and it will bounce it's way out. It's the same reason I pull the slack of my reserve cables and stow it under the reserve flap. Keeps the cable from bouncing in the wind which has led to premature reserve openings


riggerrob  (D 14840)

May 13, 2011, 11:22 AM
Post #15 of 21 (2013 views)
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Re: [towerrat] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Good point!
My pre-flight inspection always includes pulling all the slack - in the cables - towards the drogue.


riggerrob  (D 14840)

May 13, 2011, 11:27 AM
Post #16 of 21 (2012 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

Another possibility is that the cable was too short.
Sometimes the ends fray, forcing riggers to trim a little (half an inch) off the end and melt the plastic to hide the steel cable.
If you do that too many times, you end up with too short a cable.
Try comparing the length of the release cable - on the offending rig - with other rigs on the DZ.

The long term solution is to - follow the lead of Strong's latest (one-pin) prototype - and sew another Slimline buckle onto the TI's leg pad. That way there is less risk of hyper-extending the housing and one less buckle to mess with.
The primary advantage of snapping the drogue release to the instructor's leg pad is that it mimics the BOC ... found on most modern skydiving containers.


Andy9o8  (D License)

May 14, 2011, 3:50 PM
Post #17 of 21 (1886 views)
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Re: [solodude59] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
Any chance he got a coupon or something for a little more freefall on the next jump...? Wink

I'd like to know this, too. Peanutt?


jumpdude17  (D License)

May 15, 2011, 6:20 PM
Post #18 of 21 (1843 views)
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Re: [peanutt] Tandem main canopy open at 9,000ft [In reply to] Can't Post

friends dont let friends jump strong tandem rigs or racer tandem rigs.....btw whats your wing loading??


peanutt  (D 23872)

May 15, 2011, 11:08 PM
Post #19 of 21 (1825 views)
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Re: [Andy9o8] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
In reply to:
Any chance he got a coupon or something for a little more freefall on the next jump...? Wink

I'd like to know this, too. Peanutt?


I never heard. The DZO was going to contact him later that week


towerrat  (D 28189)

May 20, 2011, 7:39 AM
Post #20 of 21 (1675 views)
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Re: [jumpdude17] Tandem main canopy open at 9,000ft [In reply to] Can't Post

why is that? I think you're just repeating what you've heard. I have thousands of jups on Strong rigs. They're solid workhorses.


Rover  (D 241)

May 22, 2011, 8:01 PM
Post #21 of 21 (1613 views)
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Re: [towerrat] Tandem main canopy open at 9,000ft [In reply to] Can't Post

In reply to:
why is that? I think you're just repeating what you've heard. I have thousands of jups on Strong rigs. They're solid workhorses.

But with 550 jumps and 3 years in the sport, he's probably forgotten more than you will ever know. Crazy



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