Test Jump #2

[Hooknswoop 19]

Good news!
I deployed the Stiletto out the door, then deployed the PD-170. The PD inflated, flew up behind the Stiletto, then to a side-by-side, then to an almost Bi-plane. The Stilettos center cell rested against the left steering line of the PD and it flew just fine. I made some gentle turns w/ the PD and the Stiletto followed nicely. I released the brakes on the Pd and they flew together even better. Eventually I released the Stiletto and it cleared w/o a hitch.
So with a difference of 73 sq. ft. two canopies flew great together. The PD seemed to be able to absorb being pushed around by the Stiletto more than the Safire did. It seemed like the PD is trimmed more nose down (I'll have to check on this) than the Safire, which also helped them fly together. I could have landed w/o injury at any point in the deployment on the PD.
It appears that a fairly significant difference in performance between a main and a reserve causes no negative effects. I plan on doing a few more jumps to make sure, but I feel confident that this latest jump was a very good test.
If I left anything out, feel free to ask.
Hook

[n2skdvn 0]

verry informative hook hope you got some photos or vid would like to see them!!!!
It's not the fall that kills you, it'ssudden deceleration syndrome.

[Hooknswoop 19]

No, Richard arranged for video, but the video guy was busy. Richard lurked the jump and was all diappointed when everything didn't go to hell:-)
Hook

[rgoper 0]

we didn't, next time we will (umm hook) i went out with him, had to see it for myself, all the video guys were busy with tandems, looks like i'll be buying a helmet cam before long! i must say, i was impresseed by hook's drive to test fly these canopy's in an intentional "Mal" but it never happned, i saw the whole thing, and i'm glad i did, i learned a lot, but i wished it would have gotten out of control! J/K! i gotta tell ya, when hook invited me to bail after him, give a 3 second delay, and beings as i was flying my new hornet today (2nd dive) that i bought from freaksis, i was hesitant, but after hook and i went ovet the dive plan, i was completely at ease, the only thing i wasn't braced for was the "prop blast" (back to earth inflation...different) opening at 13K....TRIP! YEAH. loved it, thanks hook! i'm still dissapointed i didn't get to witness a "downplane" at 13K........J/K Blues!
Richard
"Gravity Is My Friend"
Sis:
WHERE are the brakes on that thing? didn't stand it up once today, but it has a lot more "glide" in it than my 7 cell traithlon!

[rgoper 0]

hook:
damn skippy, i wanted to see a "high speed mal" remember, you told me you'd "ride it out" all went well, it was fun, the good thing is we have pertinent infiormation about canopy sizes/reactions now, good thing hook wants to do this, me.....no thanx!
Richard
"Gravity Is My Friend"
P.S.
Hook, your NUTS!

[rgoper 0]

Hook:
What's Next? A 230 Main, And A VX-60? J/K But In The Event You Do That, Wait For Me To Line Up Video! :)
Richard
"Gravity Is My Friend"

[GroundZero 0]

Wow...
Derek, have you seen Rusty (Vest's) work on the same idea.....
It seems you imply a bi-plane cutaway... you should spell out the canopy(ies) configuration when you cutaway.
STUDENTS... do not cutaway from a bi-plane -main-in-front, reserve-trailing configuration, the released main can destroy your reserve...
Can you be more specific, Derek?
Chris

[Hooknswoop 19]

"Wow...
Derek, have you seen Rusty (Vest's) work on the same idea..... "
No.
"It seems you imply a bi-plane cutaway... you should spell out the canopy(ies) configuration when you cutaway.
STUDENTS... do not cutaway from a bi-plane -main-in-front, reserve-trailing configuration, the released main can destroy your reserve...
Can you be more specific, Derek?"
Of course. The "reserve" was in front w/ the "main" behind the reserve in a Bi-plane configuration. The difference from the classical Bi-plane is that the reserve eneded up in front of the main, allowing for a clean cutaway of the main.
I would not say that there would never be an occasion to cutaway from a classic Bi-plane (main in front). I haven't seen very much research beyond what the PIA has on their web page on 2 canopy out situations. I think that 2 canopy out teachings vary from DZ to DZ, instructor to instructor. I was taught in my FJC to, "Cutaway from one good canopy but don't cutaway from two good canopys."
Hook

[SkymonkeyONE 4]

Actually, Mike Mayo, the former head rigger of the US Army Parachute Team did a TON of research on this subject. It is all on video. They tried every single combination that was in the Golden Knight inventory at the time and archived/published the results somewhere. My wife was involved in quite a bit of the testing.
Chuck
My webpage HERE

[Hooknswoop 19]

I think i read about those tests, they used some pretty big and similar canopys and didn't get in all the jumps they wanted to. I think it was testing for student type canopys. If not, I would love to hear about it. Someone on here must know where I can look them up at????
Hook
Hook