If you have a well behaved side-by-side, wouldn’t steering with outside raisers (Left on Left canopy and Right on Right) turn canopies away from each other and make them go into a downplane? Mind you, I'm still a greenhorn and have no experience with two out malfunctions. Hell, I don't even have a license yet; but I read everything, about skydiving, I can get my little hands on. I was just thinking from the physics point of view.
I did read the PIA Dual Square Report on the research test about two parachutes out (it was performed by the US Army Parachute Team and Scott Smith). You can read it her: http://www.performancedesigns.com/docs/dualsq.pdf. They concluded that the biplane is the most common configuration and that you should gently steer the dominant - front canopy (with toggles) and leave brakes on the back canopy stowed. Cutting main in a biplane was never mentioned. Second most common setout was side-by-side, where you should steer with the dominant (larger and above) canopy. If they used outside risers (or toggles), canopies went into a downplane. If they steered with all four, canopies would fly into a nose-to-nose. They called both situations "not a desirable result", how cute. What I found interesting in this report is a statement that downplane (third most common result) very often returns into a side-by-side, without any input. However, the only time the report recommends a cutaway as the first action of choice is if the "downplane is present". It seemed that the overwhelming message was to do what you are suppose to do with the normal opening. Check if you have an open parachute above your head -- duh, check if it's controllable and find a safe place to land.
What do you think? -------------
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