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base_bin
July 30th, 2009, 02:44 PM
Hi
Pretty much every jump I'm practising rear riser input, as well as harness & toggle input, when flying my canopy.
One issue though, I have a Sabre II 190 & am finding it physically difficult to turn the canopy quickly using rears...its taking about 2-3 seconds to get the turn started. I am 'fairly' strong, have wing loading of 1.0 & put a hell of a lot of effort into trying to turn (i am doing chin ups to get front riser response) but am particularly worried that when start BASE & flying much larger canopy from an object, & say with a 180 opening, 3 seconds is prob not enough time to correct.
Prob a stupid question but how differently do similar sized Base canopies vs Skydive canopies respond to rear riser (& other) input? Am I going to struggle more with a 260 Base canopy?
Cheers.

gofastmax
July 31st, 2009, 11:42 AM
Find a large F111 7 cell like a Raven and put some skydives on it, riser input and response will be much different than a elliptical 9 cell. A used raven can be picked up for a few hundred dollars and can be used off forgiving base objects with the proper mods.

Mac
August 1st, 2009, 05:52 AM
I have not flown a skydiving canopy for about 7 years now so cant remember what the rear riser input response was like, but I do jump my Troll 265 MDV both in BASE, and from a plane so only have that as a reference. I dont have any issue in yanking the rear risers and turning quite quickly, and dont feel that the pressure is particularly high or bothersome. I only practice 180 and 360 rear riser turns, so I dont experience increased pressure as much as when I use my toggles to loose alitude by doing multiple 360's.... normally on the 3rd or 4th 360 the toggle pressue is noticibly strong, no where near the pressure experienced on rear riser turns. My Troll is 280 loaded at around 0.6 - 0.65.

I have had only one 180 to date, off a 315ft guyed antenna, and I rear riser turned without much fear of hitting the object. Sadly the other issue is loosing altitude more than toggles, and had quite an arrival, and damaged the nerves in my arm from crashing in. Toggles vs Risers is another subject though.

Certainly the 2 to 3 seconds your taking to get around seems to me to be quite a delay, and no where near how long my troll takes to turn. Without flying a skydiving canopy I cant start to understand what may or may not be occuring.

Like GoFastMax says, get yourself a 7-cell low aspect ratio F1-11 canopy and take that out of a plane to practice, there are massive differences between that and the ZP 9-cell canopies flown in skydiving, it will at least give you the skills to take into BASE. There is a document on canopy drills floating around on the Asylum site, dig that out and it will at least give you a basis of training programme. If you are doing the canopy drills getting out at 6k on a hop n pop, move away from the deployment area, as it is likely that you will still be at around 3k by the time the freefallers are deploying.

Oink
August 3rd, 2009, 12:20 AM
>>but am particularly worried that when start BASE & flying much larger canopy from an object, & say with a 180 opening, 3 seconds is prob not enough time to correct.
-----------------------------------------------
Remember that BASE canopys have deep brake setting...after opening, your forward speed will be slower than a skydiving canopy one...

Anyway, 3 seconds r a lot of time...probably u need a bit more training and practice ;)

airdog07
August 4th, 2009, 07:15 AM
you really can not compare Sabre and base canopy, if you can try to rent or borrow specter or triathlon (if you can not use saber) , you really want to use toggle to back up the canopy if you have time, if not rear riser (because with riser you loose lot's attitude compare to toggle)ether way try to back up the canopy first than flat turn the canopy way from the object, whey you go skydiving next time after the opening go to toggle fast as you can than back up the canopy and turn to left or right, do that ever time you jump practice practice and practice