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Aresti 2m

Product Code: ARESTI
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Price: $660.55

2 in stock

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Description

The Aresti 2m is a highly regarded design from slope soaring legend James Hammond. The carbon/glass hybrid Aresti has a good speed range, superb aerobatic handling and is built strong enough for high energy slope aerobatics while also being light enough to be enjoyable in lighter winds.

The Aresti is a great model for pilots wanting to perfect their aerobatic repertoire while also having a superb all round sport model. The Aresti is light so it will fly in almost anything, and with its large ballast capacity and responsive airfoil section it can handle most situations very well.

Overall design
James set out a set of strict design goals, based on the work the plane has to do; then he drew up a sketch that will fulfil those goals. Then he curved and tweaked it – always keeping a good eye on the performance requirements. It is probably a rather longwinded approach but it works, giving nice looks but with no sacrifice to performance.

The Aresti is easy to fly. It has an optimized wing plan form and completely new wind tunnel tested aerofoils. The layout of the wings and fuselage has ample room to allow plenty of ballast in the fuse and optional ballast in the wings too.

James believes the truism: “If it looks right, it will fly right…” this is backed up 100% with the Aresti series which look great and flies like a dream.

Aerofoils
Originally designed as F3X type tailplane aerofoils the sections used on the Aresti were refined to provide for maximum control response with minimum deflection, and therefore drag; so the trade off was the infinitesimal increase in drag offset by the increased control response for less deflection.
At 10%, the fully symmetrical double cusped section is thick enough to give good aerobatic response yes still carry a good ballast load and work well in sketchy air.

Wings
The optimized sections will let you go from gut busting aerobatics, through big air, graceful manoeuvres down to really slow landing speeds with the flaps down. Large ailerons, large flaps and a semi elliptical wing plan form each add to the overall performance of the sailplane.

The wings are available in to order glass or full carbon lay-up options, though we usually stock the carbon/glass hybrid version that has the best performance to $$$ ratio. Horns are factory fitted with well thought out geometry to allow flush servo installation using almost any servos, making a huge range of servos possible. Using conventional linkages you can get a clean, practical and most importantly serviceable wing installation optimized to use full servo travel to give high torque and low slop. In addition to the fuselage ballast facility a ballast provision in the wings allow 130 mm length of 12 mm ballast slugs (max weight possible = 260 g) to be installed in the wing roots for even higher wing loading and greater flexibility plus big-air performance.

Aeroic Sine Wave Spar
Used in several military aircraft, the Sine Wave Spar has been adapted for the first time to make up the heart of a model sailplane wing, and has frankly amazed us with its low weight, and ultra high strength. Unlike a conventional spar the Sine Wave Spar adds terrific torsional strength and yet actually weighs considerably less than the older non-optimized spar. Now used in all ACAP sailplanes, the Sine Wave Spar is a lighter and far stronger upgrade that raises the technology level yet another notch.

Fuselage
The beautifully contoured fuse is deep, and balanced front to back to give the side area required for some aerobatic manoeuvres. Its strong, light, and stiff with Carbon/Kevlar. Electronics area is 2.4 GHz friendly with access to the radio and ballast through a conventional slide-on hatch type canopy. The long nose area provides plenty of space to easily balance the model without resorting to shoehorning lead in every nook and cranny.

Snakes or rear mounted direct servos can be used for Rudder/Elevator control. These are all positioned to take the ‘head scratching’ out of installing the radio gear and to allow the use of standard 19/20mm round ballast slugs, 10 of them if you need them, which added to the optional ballast in the wings allows more than 1.5kg capability!

The rudder is designed large enough to be effective for both aerobatics and slow landing speeds. Wing stub fairings with location dowel holes finish the fuselage. An added advantage is that it’s extremely easy to convert to electric.

Tailplane
At 10%, the tail sailplane section is thicker than is the norm but the infinitesimal increase in drag is easily offset by the increased control response for less deflection. To increase the efficiency, pitch control is accomplished by using an elevator. The elevator is driven by either an optional ball raced bell crank from a servo in the fuse, or a servo can be placed in a hatch through the fin to give solid elevator control. The tails remain removable for convenient transport or storage.

Joiner
Like all of the ACAP airframes, the Aresti has a large joiner. Massive is the only way to describe this part. It’s just over 35 x 12mm and can handle light acro DS.

Production
The Aresti series has been designed with far greater capability potential than any aerobatic slope model that we know of, but also for simplicity. This approach makes the installation straightforward and practical, leads to a sailplane that is a snip to fit out, and flies like the true thoroughbred it is.

In addition to the supplied ballast tube the kit accessory bag includes the fuselage servo tray, four plastic servo mounting frames (designed to take larger 30 mm x 35 mm wing servos), good quality metal wing clevises and pushrods, and colour coded hatch covers. The fuselage is fitted with two nice carbon pushods. The elevator servo can be fitted in the fin to simplify the installation, or in the front of the fuse to help with the CG. In the later case rthe customer will need to supply a belcrank to operate the all flying tail. In both cases the customer will need to supply the tail linkage hardware. The cut outs in the fuselage servo tray are for servos with a body footprint of 23 mm x 12 mm.

Aresti 2m Specifications
Wing span 2.00 m 79 in
Wing area 38.0 dm2 589 sq in
Length 12 cm 4.8 in
Flying weight from 1692 g 59.7 oz
Wing loading 44.5 g/dm 14.6 oz/sq ft
Aspect ratio 10.5
Wing airfoil JH10SYM
EDA (dihedral)
Centre of Gravity 95 mm from wing leading edge
Controls Ailerons, flaps, rudder, elevator


Aresti 2m Typical Weights
Fuselage inc pushrods 320 g 11.3 oz
Left wing 427 g 15.1 oz
Right wing 428 g 15.1 oz
Tailplane 56 g 2.0 oz
Wing joiner 110 g 3.9 oz
Ballast tube 45 g 1.6 oz
Accessories 34 g 1.2 oz
Total structure 1420 g 50.1 oz
Wiring 30 g 1.1 oz
Receiver 10 g 0.4 oz
Tail servos (2) 40 g 1.4 oz
Wing servos (4) 92 g 3.2 oz
Battery 100 g 3.5 oz
Flying weight 1692 g 59.7 oz


Recommended RC
Rudder & Elevator (servo body max 23 mm x 12 mm) MKS HV6125e, MKS DS6125e, KST DS215MG, KST X12-508, KST MS320, Blue Bird BMS-106HV, Blue Bird BMS-107HV
Flap (servo max 10 mm thick) MKS HBL6625, MKS HV6130, KST DS225, KST DS125, KST X10, Blue Bird A56V
Aileron (servo max 10 mm thick) MKS HBL6625, MKS HV6130, KST DS225, KST DS125, KST X10, Blue Bird A56V, KST X08 Plus*, KST X08*
Receiver 6 channel rx to match your transmitter
Power Overlander 2S 1000mAh, Radient 1600 mAh 6V, HyperFlight 2200 mAh 4.8V, 1600 mAh 2S LiFe
*The supplied servo frames fit KST DS125 and X10 sized servos.

Aresti Ballast Provision
Wing Ballast per wing 260 g 9.2 oz
Fuse Ballast** 1000 g 35.5 oz
Total ballast 1520 g 53.6 oz
**This requires an insert at the back of the tube to obtain the recommended 95mm CG setting


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