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dieforme

Foreward movement on a 7-cell

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I am flying a 7-cell main loaded at .62:1, that seems to fly straight down. After two off-target (yet otherwise uneventful) landings, I could use some advice on getting more forward movement out of this thing. Thanks in advance to anyone who can dole out a little advice.
Steve


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What is the canopy?

I jump a 7 cell loaded around .64 pretty regularly. I haven't had any problems moving forward. I can get enough forward, flying aggressively, to make good progress into 15mph headwinds.

Don't forget you can use your front risers to penetrate. Also, if you are just sinking straight down (rather than floating up high forever), you may just have a really clapped out canopy. How's the flare on the canopy?
-- Tom Aiello

Tom@SnakeRiverBASE.com
SnakeRiverBASE.com

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There are two issues going on here. The most significant is wingloading, the second is canopy type. Although it is generally true that 7-cells (bicells) tend to have less glide than their higher aspect ratio 9-cell counterparts, wingloading is the most significant variable in the speed.

Greater airspeed means a greater ability to penetrate into a headwind.

If there are no safety concerns, I suggest downsizing to closer to 1:1. You may choose to go to a higher aspect ratio canopy as well, but the biggest issue is the fact that your body weight is not sufficient to drive the parachute forward. Thrust under canopy is a function of weight, since we have o propellers to drive us forward. Suffcient wingloading will allow you more options under canopy, and give you more control over the situation.

I suggest reading up as much as you can before you downsize, however, and maybe even take a canopy flight course. This is a big step you are taking. Don't take it lightly.
"Don't take downsizing lightly"
Hey, that's funny!
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Why are you jumping such a lightly-loaded canopy?

... accuracy competition?

Hard core accuracy competitors are fanatics about watching the wind meter and demanding re-jumps if a single gust exceeds limits in the FAI rule book, yada, yada, yada.
The botom line is that no one expects a lightly-loaded canopy to have much penetration.

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