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PuRES V2 2m

Product Code: PURES-V2
 (17 reviews)

Price: $228.45

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Description

The Pures V2 is one of the original models that drove this class to worldwide success. The Pures V2 and the Slite V2 are probably the most highly regarded models in this 2m balsa glider class.

In 2011 Josef Gergetz of SETA Modelltechnik started to manufacture high quality sailplane kits for the newly emerging 2m build up glider competition class. By the end of 2017 the demand for Pures was so high that Josef Gergetz could no longer keep up with the production. Delivery times many months and it was decided to switch the production to lasercut technology at a larger manufacturer, resulting in the Pures V2.

The Pures V2 uses a slightly modified version of the highly regarded AG35 - AG36 airfoil family by Mark Drela. To allow accurate construction of the originally very thin trailing edge the rear of the airfoil was slightly thickened. It gives high lift with comparatively little drag over a wide range of lift coefficients (Cl). Compared to the Pures V2 the Pures V2 has improved L/D, especially at higher speeds.

The wing of the Pures V2 iis built as an open rib construction over very strong wound carbon fiber tube spars. To reduce sagging of the covering film between the ribs an extra sub rib is used between each full rib. This ensures the wing profile conforms much better to Mark Drela's original airfoil than other built-up designs.

A balsa jig is supplied to ease positioning of the numerous ribs, ensuring the wing is built in an accurate and speedy manner. The laser cut structure is almost identical to the previous CNC version as there was nearly nothing to improve.

What is new? Besides the new lasercut production, the components are now numbered to ease building. Furthermore, there is an excellent multicolored construction plan and richly illustrated building instructions (in German only). Check out this excellent RC Groups build thread for good English language build info.

Wing construction
The optimised design uses wound carbon fiber spar tubes, a tapered tail boom and pultruded carbon fibre tubes for the leading edge. The Pures V2 has a three piece wing and is built as an open tubular spar rib construction. The wing joiner is made of 5mm class composite rod. The flat inner wing (with the central airbrake) has an a rectangular planform. The strongly tapered mid panels are joined to the center panel with a dihedral of 10°.The lightweight tip panel is joined to the mid panel with a dihedral of 16°.

Fuselage construction
The front of the fuselage is made from balsa with plywood reinforcements and plywood formers. Behind the wing, the wooden fuselage joins the CRP tail boom (wound, tapered carbon fiber spar tube) which is supplied already drilled for the V tail mounts and slots for the bowden tubes are also already milled out. The CRP tail boom is manufactured in the same way as the tubular carbon spars of the wings to similarly minimise weight and maximise stiffness. The fuselage is wide enough to fit a 4 x AAA sized NiMH (or similarly sized LiPo) battery.

Tailplane construction
The tailplane is quickly constructed from solid balsa sheets, with lightening holes shaping its Pures name.

Electric Modification
The Pures fuselage is 31 mm wide and 40mm high at the front. Major modifications would be required to fit an electric powertrain.

The kit consists of carefully selected and numbered laser cut balsa and plywood parts. All small parts and good quality linkages are included in the kit. RC components, glues and covering material are not included.

Pures V2 Specifications
Wing span 2.0 m 78 in
Wing area 36.0 dm2 558 sq in
Length 112 cm 44.1 in
Flying weight from 435 g 15.3 oz
Wing loading 12.1 g/dm2 4.0 oz/sq ft
Aspect ratio 11.0
Wing airfoil AG35; AG36
Dihedral (EDA) 12.3º
Centre of Gravity 75-78 mm from wing leading edge
Controls Rudder, elevator, spoilers


Pures V2 Typical Weights
Bare structure 300 g 10.6 oz
Covering 50 g 1.8 oz
Total structure 350 g 12.3 oz
Wiring 6 g 0.2 oz
Receiver 6 g 0.2 oz
Rudder servo 5 g 0.2 oz
Elevator servo 5 g 0.2 oz
Spoiler servo 5 g 0.2 oz
Battery 55 g 1.9 oz
Noseweight 3 g 0.1 oz
Flying weight 435 g 15.3 oz


Recommended RC
V tail servos Ripmax SD100, Blue Bird BMS-101AMG, Blue Bird BMS-101DMG, Blue Bird BMS-101HV, Blue Bird BMS-A10H, KST X08, Graupner DES 427, Hitec HS-55, ES08
Spoiler servo Ripmax SD100, Blue Bird BMS-101AMG, Blue Bird BMS-101DMG, Blue Bird BMS-101HV, Blue Bird BMS-A10V, ES08
Receiver 4 or 5 channel receiver to match your transmitter
Battery HyperLipo 2S 300 mAh, Dream-Flight 300 mAh 4.8V NiMH, HyperFlight 650 mAh 4.8V NiMH, Dream-Flight 700 mAh 4.8V NiMH, 1S 2600 mAh Li-Ion cell.

Reviews 17  


 Review by:

PuRES V2 2m

Great kit!
The best a balsa wood kit can be!
I have had 5 of these kits in the past and why, because they are the best kits out there to date.
You can't beat it with the quality of wood in this kit!


 Review by:

Pures f3-res

The model is easy to assemble, the parts fit very well, I recommend it to everyone


 Review by:

PuRES v2

Bought another wonderful kit off Neil in November and like the Eli I built it onboard the yacht I work on.
The kit is a super easy one to build, enjoyable, but very easy, so it’s a great starter kit for those wanting to build their first glider.
I haven’t maiden it yet, but I know flight wise it’s going to great.
I would highly recommend this kit, the kit contents was clean and tidy and all good quality wood and parts.
My only small criticism is the instructions are all in german, but I didn’t use them anyway lol.
Thanks again Neil for a great service.


 Review by:

Delighted

Thanks for the bits and pieces plus advice received on this model.
I’ve completed the fuselage and motor modification and am now starting on the wing. I’ve run into problems, not with the kit but with my wife, as I’m finding assembly totally addictive and absorbing. I can’t believe the astonishing accuracy of the model’s components.
The HyperFlight 28A ESC I bought, contrary to my fears was as you said would, operates perfectly with no messing about of end points etc. The proof of the pudding will be completing and flying the model however, so far, I’m delighted, even the conundrums of fitting a motor were very satisfying.


 Review by:

Pures V2 Update

An update since my last review have built and flown the model. I agree with Brett building was very easy. Maidened on Sunday and it was a joy, easy to fly no vices and no adjustments needed. A fantastic kit and a great introduction in to 2 m RES flying.


 Review by:

Pures V2 Update

An update since my last review have built and flown the model. I agree with Brett building was very easy. Maidened on Sunday and it was a joy, easy to fly no vices and no adjustments needed. A fantastic kit and a great introduction in to 2 m RES flying.


 Review by:

PuRES V2 kit

Excellent service from Hyperflight, as usual. The kit is an absolute joy to put together. Why can't all kits be this good?
The maiden was a complete non-event: up , up and away with no trim clicks (must be a first for me!). Model immediately promoted to top light-weather 2m favourite.


 Review by:

Pures V2

Great kit and great service as usual from Neil and the Team. I haven't built it yet but I know it will go together without any issues.


 Review by:

Pures kit

Hyperflight does amazing job distributing these models. I have ordered it one day and received it 4 days later on the West Coast of US.
Last week I have finished the kit. The quality of the design/ construction is stunning. All parts were cut exactly, everything just fits and clicks. The plan has not seen quality, it's perfect. The instructions could be better structured to help with the build flow.
Did not fly my Pures yet, social distancing closed our field. Can't wait to send the new bird into the air once they do open it again..


 Review by:

Pures

Just finished the glider kit and like all of the other reviews I must say the wood selection and laser cutting were excellent. The kit went together without any problems even with German instructions. I'm putting the final touches to an electric fuselage which is a copy of the glider fuselage that has a cropped front because of weight with a built up tail in the same construction method of the main wing, carbon carbon rod and balsa ribs. This has caused a slight problem due to being too lite believe it or not and I'm switching battery and electronic components around to find the correct balance. Just need a little less Corona for a test flight.


 Review by:

Great product - Great Service

Wonderful kit delivered more quickly to the US than I thought.


 Review by:

This is an excellent product. It's been many years since I built a glider from a kit - either I would buy an ARF model or build my own from scratch.
The quality of the laser-cut parts are second to none and they all assemble together perfectly. SETA supply a clear full-size drawing to use either as a template or guide. All instructions are in German but these days are easily translated on-line. Apart from radio equipment, the only other parts required are adhesives and covering.


 Review by:

Love the service love the ship. love the RC Groups thread ! I am 77 and have not done a built-up ship in ? 30 ? years so it is going slower than I thought but fun and challenging enough. Fuselage 90% done tails 90% done .
Would have liked to translate directions to English(American).


 Review by:

Pures. flight stage

This is a follow up from my review on 5th. August. Pures now fully flight tested and the results are spellbinding. This is my first experience with lightweight res sailplanes so nothing to compare with. Having said that I cannot imagine better. This thing would fly away every flight if not controlled by radio. Four to six minutes the norm in still air. Hit a thermal and it's a question of getting it down. Superb.


 Review by:

PuRES V2

I have never seen a kit as good as the PuRES V2!
Top grade!
10 + score for quality!
The best laser cutting I ever have seen!
I have been building RC sailplanes kits for 55 years!
The best kit ever made to date!
Buy more than one of these. You will love it!


 Review by:

pures v2

Absolutely the best kit I have seen, the laser cutting is so fine and it goes together like a dream.


 Review by:

Pures

Absolutely stunning. Goes together like clockwork! Never had a better kit,in fact never had a kit anywhere near as good! Worth every penny.


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