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Envy 2

 Paraglider Envy 2

Graf Envy 2

descripción



El Envy 2 es un ala de alto rendimiento, para cross, pero con un nivel muy alto de seguridad y estabilidad. El Envy 1 marcó un elevado estándard para la categoría DHV 2 y con la Envy 2 la historia continúa. Los beneficios en rendimiento, obtenidos de la experiencia en la producción de las series del Magus se unen a una clara ganancia general respecto a la Envy 1.

Rendimiento, agilidad, estabilidad y elevado rendimiento en ascenso fueron de nuevo nuestros objetivos cuando diseñamos esta ala de gran rendimiento. La Envy 2 está orientada al cross, para pilotos que busquen un vuelo relajado y para quienes quieran progresar desde alas intermedias, expandiendo sus capacidades. El piloto puede progresar fácilmente con esta vela. Perfiles cuidadosamente calculados, de diferente espesor, le dan al ala un excelente planeo y estabilidad, tanto en vuelo a normal como acelerado. Brinda una excelente estabilidad a máxima velocidad. Esta característica hace que la Envy 2 destaque por encima de sus rivales.

 

La forma ligeramente elíptica del ala, tiene un alargamiento de 5,74. La Envy cuenta con 56 cajones con diagonales completas. Las celdas son más estrechas a medida que nos acercamos a las puntas del ala. Los refuerzos en las costillas ayudan a mantener limpio el perfil. Los refuerzos del borde de ataque conforman un perfil absolutamente limpio. La configuración del suspentaje usando un número mínimo de líneas es el mismo empleado para la Envy 1 y ayuda a mantener la forma de la vela limpia y precisa. Las líneas van ancladas cada tres costillas y su construcción ha permitido reducir el número de cuerdas a dos tercios. El sistema de freno es el mismo empleado en la Envy 1. Con el sistema de refuerzos de flap en el centro del ala, combinado con las anillas de fruncido en las puntas, da un mando preciso con una capacidad de ascenso y rendimiento fuera de los común.

 

La Envy 2 es brillante en el suelo. Los pilotos de MAC PARA han tenido, durante años, la ventaja de la indulgencia de su característico inflado y despegue fácil. Todo se siente muy predecidble en cualquier tipo de condición en el despegue. De hecho, no es más exigente que una vela 1-2 en este sentido, a pesar de su mayor alargamiento. La Envy 2 viene equipada con unas bandas de 20 mm. La A separada facilita la maniobra de hacer orejas. La posición de la sub-banda A exterior hace que su plegado sea progresivo y fácil. La apertura es predecible y suave.

El ala no es exigente y se resiste a las plegadas en aire agitado. Da una excelente estabilidad en todo el rango de pesos y velocidades. Su rendimiento en planeo se ha incrementado respecto a su predecesor tanto a velocidad de trim como acelerada. Induciendo la plegada, el ala no gira rápidamente y usualmente reabre en 60 grados de giro.

El mando es preciso. La presión al freno resulta moderada y permite hacer giros placenteros con un buen rendimiento en ascenso, incrementando progresivamente la dureza del freno al acercarse al final de su recorrido, lo que ofrece una reserva de seguridad.

La vela está moderadamente amortiguada en todos los ejes y ofrece agilidad en el giro. No adelanta demasiado ni se queda atrás. Prestamos una gran atención a los pequeños detalles. La Envy 2 viene equipada con unos puños con cierre magnético y emerillon como estandard. El cierre de velcro en el estabilo permite limpiar la vela de arena, piedras y restos de hierba.

 

El uso de materiales de alta calidad y un control de calidad constante durante el proceso de manufactura, junto a un trabajo de desarrollo muy consistente en nuestro propio programa informático PG, produce productos de una elevada calidad. Nos sentimos orgullosos de ello.

 

MacPara Envy 2 Review

MACPARA’S DESCRIPTION
The Envy 2 is a high performance, cross-country glider with very high safety and stability. The performance profits from the experience gained in production of the Magus [competition] series.

 

BACKGROUND
MacPara came into existence in the early nineties and have gradually grown over the ensuing years to become one of the major brands in our sport. At the helm from the start has been manager and designer, Peter Reček. Over the last few years the company has enjoyed a large amount of competition success with their Magus range and pilots such as Petra Slivova, Tomas Brauner, Greg Blondeau, Yassen ‘big bird’ Savov and of course the Valic brothers. MacPara have also gained several world records with Nev Hulett’ current open distance record of 503 km set on a Magus, as well as previous records from the Valics and women’s record which was until a few weeks ago held by Petra.
The company are based in the north east of the Czech Republic in the town of Roznov. The town is close to flying sites on the Beskydy hills. Production is split between the facility in Roznov and Gin’s production plants in Korea.

 

THE DESIGNER’S OWN WORDS
What were your aims when you were developing the Envy 2
We enjoyed a lot of success with the original Envy and wanted to keep a similar concept: an LTF2 glider with very high stability and sporty handling. Of course we wanted to keep all the good features of its predecessor such as the easy take-off characteristics, stability and speed range.
One of our aims was to place it more in the middle of the Eden 4 and Magus XC. To improve the glide, climbing performance and speed we used the aerofoil profile from the Magus 6 in the central part of the glider. As we have done with all our gliders since 2000 the aerofoil profile varies in depth across the span. In all we made five prototypes during its development.

 

What group of pilots is the Envy2 aimed at?
The Envy 2 was made for cross country oriented pilots looking for relaxed flying and for pilots progressing from intermediate gliders to expand their skills.

What style of flying is the Envy 2 most suited to?
If you are gentle on the controls it has very easy behaviour but if you want to find its sporty side it offers nice dynamic handling allowing you to easily master wingovers, SATs and spirals.

Where in the weight range should the Envy 2 be flown?
As with the first Envy it can be flown anywhere in the weight range. Of course like any glider it becomes more dynamic and fun when highly loaded.

What will and existing Envy pilot notice if they try the Envy 2?
We think they will notice improved climbing performance along with a better accelerated glide. In our tests we found that when gliding at 30% bar with a faired harness it has similar performance to many competition gliders, which is of course great for flying cross country. The brakes are slightly heavier and the wing is more dynamic with a little more feedback when entering and leaving thermals.

What are you most pleased about the new glider?
That it’s been well received by the pilots who have flown it and sales are good.

What’s next from MacPara?
We’re working on a new paramotor wing, the ‘MacJet’ with full reflex.

 

CONSTRUCTION
The glider is a very clean with a classic elliptical design with an aspect ratio that isn’t too radical at 5.74. It sports a variation on MacPara’s distinctive livery that incorporates the ‘M’ logo. As with many of the company’s wings it seems to use very little in the way of trickery, you won’t find any pieces of plastic in the leading edge. Peter once told me he likes to have all the tricks hidden under the bonnet. However, one little trick that you’ll notice when you look at the leading edge is small Mylar shapers sewn into the middle of the top surface of each cell, to help improve the aerofoil shape in this area as most of the lift is generated here. The canopy is made from Porcher Skytex with 45 g/m2 cloth used on the leading edge and 40 g/m2 cloth used further back.
The line layout is simple with three main lines per riser, the a-risers are split, and only one bifurcation point. The lines are Aramid Kevlar lines from Edelrid. The brake system uses rings on the trailing edge to bunch the tips under breaking, MacPara also have what they call a ‘reinforcement flap system’ in the centre of the wing to stiffen that section of the wing.
The risers are very clean and simple with no fuss. Split A’s make pulling big ears easy. The brake handles are kept in place by metal magnetic keepers and have swivels to stop brake lines getting twisted. The speed system utilises the step down system found on some Gin and Advance gliders. This system switches the speed system from 2:1 to 3:1 and means that the initial push is light becoming harder as the system goes to 3:1, which lets you know when you’re going into the second, less efficient, part of the speed system – keep it for punching into strong headwinds or racing between closely spaced strong thermals. Everything is finished to the quality you would expect from a mainstream manufacturer.
The Envy 2 is available in five sizes covering all up weights from 65 kg up to a massive 165 kg although the largest size is only available to special order and has no certification. I chose to fly the Envy 2 28 right at the top of its weight range with my Sup’Air Vampair harness and a little lower in the range with a Sup’Air Evo XC harness. The glider was delivered with the latest backpack from MacPara, which is well constructed and comfortable, with three compression straps. As well as the required manual the glider also came with a complete repair kit, a T-shirt and even a mini multi-tool emblazoned with MacPara logos.

Envy 2 - Flap system

 

LAUNCHING
MacPara can certainly tick off one of their targets with this glider; it has to be one of the easiest LTF2 gliders to launch. Indeed it is no more demanding than most 1-2s. While testing the wing I took off in varied conditions from light thermic conditions to stronger breezes. In all cases it behaved impeccably, rising smoothly with a gentle tug of the risers and stopping overhead. Once there it felt very solid and easy to control. For those moving up from lower class gliders this will make the transition easy.

 

IN THE AIR
Once you are airborne the first thing you will notice is how solid everything feels; this wing carves through the air feeling secure and unhurried. On entering thermals there is no aggressive pitching movement, making for a very comfortable ride. The lack of pitching means you can actively accelerate the wing into thermals before using the energy that builds up in your first turn.
It is very easy to control your turns with this wing. A short pull on the brake easily puts the wing in a flat turn, with no tendency to stick at any point. If you get a bit more aggressive with the brakes and add a bit of weight shift the wing will get up on a wingtip when needed in small punchy thermals. The handling is no more demanding than most 1-2s, but this is of course an LTF2 glider so you should be experienced enough to handle it. Feedback is on the subtle end of the scale with no nervousness in the feel of the wing. It’s easy to feel where the best is lift is through the brakes. I flew the wing a lot in Brazil during the XCOpen and very quickly became so confident in the wing that I was happy to thermal with one hand on the brakes and one on the camera.
Once on glide it again feels very secure and there is no pitching so you can get on with concentrating on where to find the next climb or switch the brain off for a bit and relax. The bar is easy to use and the leading edge stays solid throughout the range. The kickdown gives good feedback of where you are in the range with the glide remaining efficient in the first section. Flying with other wings of its class this wing felt like it was on a par performance-wise.

 

DOWN TO EARTH
Despite its comfort and ease of use this wing still has a fun side when you want to come back down to earth. Wingovers and asymmetric spirals are easy with the wing being forgiving of any timing errors. As with most wings these days the landing is easy with a nice flare.

 

IN SUMMARY
The Envy2 is a great wing for pilots moving up from an LTF1-2 glider, the handling is no more demanding but you’ll get that extra dose of performance. It is a great all rounder with good cross country performance and a playful side you can discover should you wish.

 

THE REVIEWER
Marcus King was flying the Envy 2 28 (88-110 kg) and an all up weight of 109kg with a Sup’Air Vampair harness and at 106kg with a Sup’Air Evo XC harness.

 

WE LIKE MOST
The easy handling and security

WE WOULD RECOMMEND IT TO
Cross country pilots moving up from an LTF1-2 or those flying in places where they don’t want to have to worry about the glider at all and just get on with flying and enjoying the experience.

Cross Coutry ( January - February 2010)

 

materiales

 

Extradós delantero:Skytex 9092, Coating E85A 45 g/m2
Extradós trasero:Skytex 9017, Coating E38A 40 g/m2
Intradós:Skytex 9017, Coating E38A 40 g/m2
Costillas principales:Skytex 9017, Coating E29A 40 g/m2
Diagonales:Skytex 9017, Coating E29A 40 g/m2
Costillas secundarias: Skytex 9017, Coating E38A 40 g/m2
Líneas superiores:Edelrid Aramid/Kevlar
6843 – 60 kg, – 80 kg
Líneas principales:Edelrid Aramid/Kevlar
7643– 230 kg,– 190 kg,– 140 kg,– 80kg

 

La Envy 2 está fabricada usando un más que probado material ligero de excelente durabilidad. El Skytex 40, de Porcher Marine (NCV). Como en cualquier ala, la parte que más sufre siempre es el borde de ataque, usamos Skytex de 45 grs, con el acabado E85A para esta parte del ala. En las zonas menos castigadas, colocamos Skytex 40 con acabado E38A. Para las costillas y diagonales, usamos el Skytex 40 con acabado duro (E29A). Todos ellos dan al ala una gran ventaja en ligereza y durabilidad.

datos

 
Envy 2
23
Envy 2
25
Envy 2
28
Envy 2
31
Envy 2
37
Factor zoom [%]91.596100105115
Superficie de planta [m2]23.1525.7627.9530.8136.96
Superficie proyectada [m2]20.9823.3425.3327.9333.5
Envergadura de planta [m]11.5312.1612.6713.314.57
Alargamiento de planta5.745.745.745.745.74
Cuerda central [m]2.562.72.812.953.23
Cajones5656565656
Peso [kg]5.866.256.67.7
Rango de pesos [kg] *65-8377-9788-110105-135140-165 **
Velocidad mínima [km/h]23-2523-2523-2523-2523-25
Velocidad normal [km/h]36-3836-3836-3836-3836-38
Vel. Máxima
(accelerador)[km/h]
50-5350-5350-5350-5350-53
Planeo máximo8.88.88.88.88.8
Tasa de caída mínima [m/s]1.11.11.11.11.1
Homologación con trimmersEN-CEN-CEN-CEN-C-

 * piloto equipado = peso desnudo + 20 Kg aprox.

** Special size


Test de homologación
  Envy2  - 23

Envy2  - 28

Envy2  - 31   
  

Video

  

 

diseño

 Design Envy 2

 


 

galería

 

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