I was eagerly awaiting my chance to fly the Gin Bonanza 2 in proper thermic conditions, because initial tests late in 2018 suggested it was outstanding, and the development lead-up had created great expectations. In 2013, Gin released the Carrera, which was the highest-performing EN B the class had ever seen, and ruffled a few feathers because of its demanding nature. It proved that pilots should pay attention to the manufacturer’s description of new wings and not blindly follow the EN ‘safety rating’.
I flew the Carrera extensively, and really liked the wing. I did several UK XCs over 100km on the Carrera, including one highly memorable one just under 200km, ending up 4th overall in the 2014 UK XC distance league. We wrote a review of the Carrera and produced a review video. A small trim update meant the Carerra became the Carrera+ (2015, which Simon Steel commented on) but it was still ‘higher than high B’ in terms of pilot demands. Next came a lightweight offshoot of the original development, the Explorer (2016), which with lighter construction and slightly lower aspect ratio fitted more comfortably into the ‘high B’ space. Nancy Elliott and I flew the Explorer extensively, and Nancy reviewed it.
Then, for two years, nothing new in this space, because they were refining something special, a worthy successor to one of Gin’s favourite wings, the original Bonanza (released in 1998). That was a calm Sports class wing with an aspect ratio of 5.6 and what seems like a large surface area by modern standards (26.8m2 flat for 85-100kg). With four risers, 63 cells and 44 g/m2 Carrington fabric, the M wing weighed in at a hefty 6.9 kg! That glider weight was nothing too unusual in those days–some wings were even heavier–which goes to show how glider design and materials have really moved on over the years, much for the better!
Gin Gliders make it clear, they are aiming for Sports Class with the BONANZA 2, and the EN C rating leaves no room for misunderstanding. It’s suitable only for experienced pilots. The Bonanza 2 is higher aspect (6.4) with a flat surface of 24.5m2 for the M (85-105kg) with 71 cells and 32 g/m2 Skytex fabric making it only 5.3 kg.
Gin Bonanza 2: Construction
All the advances in modern paraglider technology have been incorporated into the Bonanza 2, producing an exceptionally clean aerofoil that retains its shape throughout the speed range.
This is largely due to the optimised internal construction and rigid construction elements: various forms of plastic rods are used in the Bonanza 2 which help to maintain the shape. The softer top-surface rods run almost all the way to the trailing edge except for a small expansion gap. It is important that you pack the glider as described in the user manual (after stacking the ribs against each other, fold up the glider along its length, with the first fold below the leading edge reinforcements. Do not bend any of the rigid reinforcements! If you do damage them, all the plastic rods can be replaced, through small pockets.) The packing diagram in the manual indicates a style of folding that will produce a large pack volume.
We found that it was best to use the Large version of the Flybubble Folding Bag which has excess capacity.
The leading edge has a marked shark nose / air scoop, across most of the wing every third cell has an internal reinforcing ‘cross-beam’ and the trailing edge is finished off with mini-ribs for one of the cleanest wing profiles we’ve seen. The finish on the risers is high: thin webbing, 18mm Harken ball-bearing speedbar pulleys, magnetic keepers, maillons with plastic inserts and ceramic brake rings.
Gin Bonanza 2: On the ground
Simon Steel and I found it easier than the Carerra to kite and control on the ground. It has a high aspect ratio but moves in a unified, cohesive manner. It needs to be guided up on the A’s.
Gin Bonanza 2: In the air
The wing has a taught feeling; it moves as one block without feeling ‘planky’. The brakes give firm pressure and a balanced feeling. The pressure increases near stall point and it was obvious and easy to avoid spinning the wing, which gave me confidence to crank it tightly when I needed to.
When I did big carving turns or wingovers, it built up energy in a beautiful smooth progressive manner. It is a real pleasure to play around with the Bonanza 2. Although I feel it is more tuned for efficient XC flying than freestyle, it’s certainly not dull to fly!
It produces large and effective ears which are stable and require a strong pull to induce. They need a deep pump to clear.
Comparing against pilots and wings I know, the climb rate seemed at least as good as the Carrera, which was outstanding for its class. The Bonanza 2 has a higher trim speed. Until I have a season of comparisons I can’t be sure, but based on the flying I’ve had in Tenerife and the UK, I’ll stick my neck out now and say the climb rate is ‘good to excellent’.
Initial glide tests put it at the top of the Sports Class, especially regarding its ability to convert little bumps to lift.
Gin Bonanza 2: accelerated
It has an effective and comfortable speed system, with high stability and an inspiring amount of whistling wind. The ‘smart riser’ system helps you control the speed and pitch of the wing with your hands during accelerated flight. You would achieve a similar result by easing your feet off the speedbar. This rear riser control is designed to work when you have engaged the speed system: pulling the rear risers down with your hands counters the acceleration effect, by increasing the angle of attack of the wing. The Smart Riser instructions in the Bonanza 2 manual are somewhat misleading: you should avoid pulling down on the rear risers from trim speed (as pictured) to produce a negative trim (C’s lower than A’s) as this risks stalling the wing! I found it tolerated a bit of abuse, but don’t push your luck. When used correctly, it provides smooth control that doesn’t crease the wing and gives great contact throughout rough transitions. I felt very confident on bar.
Gin Bonanza 2: Who is it for?
If cross country flying is your sport and you do it regularly and have built lots of airtime and are current with SIV and active flying, then this will suit you perfectly as a comfortable and easy to handle wing in the middle of the Sports Class (in terms of pilot demands), but probably at the top in terms of performance, with an ultra-clean highly-reinforced solid wing that likes to be accelerated.
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