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Paraglider Review: 2007 Paratoys Speed Demon 27

Reviews, Updated 02-11-2007 | Ratings: 1 is bad, 10 is good | Para200 Specs | About The Testing

The Speed Demon is a reflex glider intended for speed with collapse resistance. It's similar to the Dudek Reaction (they now have a new one, the Reaction GST) but I did not compare line, cells or other dimensions. The Speed Demon retails for $2500.

Tested in-flight weight was 230 lbs with a riser spread of 18.6" using a Blackhawk Rhino 172. This machine did not have a speedbar so I was unable to test the full speed range. There is no weight range yet published but I have been told that I'm near the bottom which will make for significantly slower speeds and less crisp handling. 

Using numbers from a reaction 27 wing (27.8 m² flat, 24.6 m² projected), the projected wing loading was 230 / 24.6 = 9.35 lbs / m².

Handling (3): It feels solid and smooth. The correct and smaller size would have likely been much better but all reflex gliders (that I've flown) sacrifice some handling for their speed and solidness. This one has good responsiveness but took more pressure to achieve the turns. It can handle the increased pressure, though, with little risk of spinning.

Handling gets noticeably stiffer with the trimmers out, as with most reflex wings, but I didn't do much trim-out maneuvering. If I get another chance to fly one then I'll add comment here. Tip steering works by making the tip line (stabilo) readily accessible for turning. If you're flying it accelerated, you'll appreciate this feature since the brakes are heavier at the fastest speeds. You pull the left tip line to turn left and right tip line to turn right. With the trimmers out, it's easier to turn it with tip steering plus weight shift is also effective.

It's recommended not to use the speedbar in the slow trim configuration, especially while using brakes for steering or speed control.

Inflation (4): For a reflex glider, inflation may be a bit better than average. It was quite easy to reverse launch in a 6 mph breeze. It only gets a 4 because all reflex gliders tend to require more effort. The original Reflex was a 1 on inflation. However, once the technique is learned, especially that you have to stay on the A's longer, then it's not an issue. It tends to come up straight and is easily controllable with the brakes alone although not as much as lower aspect ratio wings.

Efficiency (4): This is a mixed bag. The glider seemed quite efficient with the trimmers in. That was most apparent on landing where I could fly along the ground, power off, for 15 feet or so while bleeding off speed. Expect your fuel burn per hour to be high but, since you're going faster, the fuel burn per mile will be average. Not surprisingly, the faster you go, the more fuel burn increases and, since reflex gliders go faster than others, their fuel burn is commensurately higher. A paraglider is an exceedingly draggy craft—going fast means gulping fuel.

Speed (8): Trim speed (hands up, no speedbar) averaged 23.6 mph, trimmers out=25.6.4 mph, speedbar full=not tested. These speeds will be much better for pilots at the recommended higher weights. This is part of the reason why its almost not fair to the wing to test below the weight range.

Construction (5): According to Elisabeth Guerin, a now-experienced wing inspector, the glider is not as stout as some other reflex gliders but is plenty strong for it's mission. The lighter construction is probably what improves inflation characteristics.

Certification & Safety (6): To my knowledge, none of the reflex gliders are certified thru their entire speed range, that is, with trimmers out and full speedbar. This one has not been through any certification process but, depending on how close it is to the Reaction, it would be expected to be a CEN Performance which is about like a DHV 2. With the trimmers full out or with speedbar used in the slow configuration, all bets are off.

It would not be ideal for a first wing since it's more challenging to inflate and it has some dark corners that new pilots should not have to worry about. 

Overall: I'm not into going fast and that is what this wing is about: speed with stability. If speed is part of your mission than this glider is as good as the other reflex models I've flown. 

Information for
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By far the most complete and recognized authority on Powered Paragliding"
- Phil Russman

 

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Jeff Goin

 

 

About Reflex Gliders

Differences between reflex paragliders and "regular" paragliders | See also Origins & Understanding of Reflex Gliders

There are some basic differences between reflex and "regular" paragliders that revolve around their airfoil shape (right) and riser set. All wings with trimmers lift the wing's aft section but reflex wings do it more and with a different profile.

Much of the difference is in that the A's and B's are extremely loaded in reflex mode (trimmers fast) and so pulling down one A riser does very little. The center of pressure is farther forward and they are difficult to collapse. In fact, one reason why they had difficulty certifying the wings is that the test pilots couldn't collapse them in certain configurations. Plus, the effort increased airspeed making the collapses even more dramatic when they did happen. But such a test isn't very realistic.

One telling experience I had was while kiting. Being skeptical about the stability claims I took to kiting one on a brisk spring morning with the factory test pilot present. Kiting with the trims in was fairly standard and the glider behaved pretty normally but with less tendency to overfly me. Then he had me leave the brakes alone. The glider would come forward and go beyond where I thought it would have tucked (frontal) but it didn't. It just stayed there. Bizarre. Same with the trims out, it was incredibly resistant to collapsing. Kiting was quite easy using just the tip steering lines.

A darker side emerged when I went to kite with the trimmers out using brakes. The wing collapsed almost immediately and was very difficult to kite. I was told it wasn't designed to be used that way: with trimmers out and on speedbar it's extremely stable but NOT with the brakes being pulled.

If a reflex wing is trimmed fast, unloads a bit, and you pull a brake, it is far more likely to fold on the pulled side. Most models recommend against using brakes while trimmed fast for this vary reason. A few do allow it but, in my experience, even these models are more subject to tip collapses if brakes are pulled in this situation.

When trimmed fast, use the tip steering toggles! Of course check the wing manual to see about your specific wing.

Another note is that most reflex wings do NOT allow the speedbar to be used with the trims slow. That common practice on free-flight gliders makes reflex airfoils susceptible to large tip collapses, especially if the brakes are used. Reflex designers logic that there's no reason to use speedbar if you're trimmed slow. To them that's like hitting the brakes and gas at the same time.

I've flown quite a few reflex models and they have all exhibited tip collapses when flown this way. I was testing because of competition: I wanted to use brakes for turning while flying courses down low and wanted to find a balance between using medium fast trim, speedbar and brakes. What I found out was that it's not a good idea! Some competition pilots who fly reflex wings use the speedbar for height control and wingtip steering for directional control. That, obviously, will take some getting used to.

If you want to fly fast with the least likelihood of deflations, reflex models are perfect. They're a bit harder to launch although that has improved dramatically over the successive generations, are usually more sluggish to control but offer the best speed range in our sport.

Overall, these wings serve their mission well provided the get respect and understanding. Fly them how they're supposed to be flown and you'll do well. Experiment with non-recommended control inputs and don't be surprised at the unusual attitudes.


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Remember, If there's air there, it should be flown in!

 

 

Home ] Up ] 2011 Chronos 19 ] 2010 Power Pluto II 18 ] 2010 Nirvana Katana ] 2010 MacPara Mac Jet ] 2010 Pegal Power X SM ] 2010 Gin Airflex ] 2010 MacPara Velvet 23 ] Apco Force 26 ] Pegas Aile 24 ] Axis Venus ] Ozone Viper 2 ] Ozone Viper Custom ] Dudek Nucleon 27 ] Dudek Plasma 22 ] Axis Pluto 21 ] MacPara Spice 25 ] Swing Naja ] MacPara Eden III ] MacPara Muse ] Paratoys Beginner ] Paramania Action GT ] U-Turn G Force ] [ Paratoys Speed Demon ] Apco Karma ] Reflex ] Apco Thrust HP ] Apco Santana ] MacPara Spice ] Fresh Breeze Silex ] Swing Arcus ] DK Symphony ]

Remember, If there's air there, it should be flown in!