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Maxa Pro 4e Megalight

Product Code: MAXA-PRO-4E
 (5 reviews)

Price: $1,916.34

Out of stock
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Description

The Maxa Pro 4e Megalight is Vladimir's Models latest and lightest version of the Maxa, specially optimised for F5J competitions. It features an advanced design by Joe Wurts, the legendary Word Championship winner of all glider classes, and professional aerodynamicist. Joe spent many months optimising the Maxa for the F3J thermal soaring class, but the large size, light weight, high aspect ratio, and well cambered airfoils also makes it ideal for electric thermal soaring, especially the new FAI F5J class and the popular UK eSoaring class. Previously the Maxa was a bit heavy, in copmarisson o the latest European F5J planes, but this latest Megalight version has about 25% lighter than the previous lightest layups, making it much easier to core low level thermals, while still retaining enough toughness to be a workable all-weather F5J model.

The large size and extreme light weight have been made possible by a new spread carbon fabric perfected by Vladimir Gavrilko and made by specially designed machines in his impressive fabrication facility. The wing is a monocoque structure with a skin of a double layer of spread carbon strengthened with a F3J strength spar made with a multi-ply 45º balsa and carbon shear web between substantial IMS 65 carbon spar caps. We are mostly stocking the new Megalight version, but Light (normal spread carbon layup) and the stronger Windy (double spread carbon) versions are available to order.

Most of the models we order have IDS sets already fitted to the wings, so aileron and flap servos can just be slotted into place in the Servorahmen bearing fames. We generally order the frames for MKS DS6100/HV6100 or Robbe/Futaba S3173 SVI servos, though other servo options may be ordered. These IDS sets include ready fitted optimised linkages, see Vladimir's site and the photo below, showing how the wing is delivered. The suppy and installation of these servo frames and linkages is shown by the IDS info below the colour option, below the price.
IDS servo mount and LDS connecting rod


The latest Maxa Pro 4 models feature a tailplane mounted on a short pylon to reduce drag on a long tailboom. The tailplane (horizontal stabiliser) has a separate elevator to further increase stability and controllability. The tailplane, fin, and rudder are now molded from lightest weight spread carbon to improve strength and minimise weight - previously the rudder and tailplane were film covered built-up structures.

Cut away drawing of the Maxa "Light" wing construction.
Maxa wing construction

Cut away drawing of the Maxa spar, showing the IMS 65 carbon spar caps, and the +/- 45º balsa/carbon/balsa ply spar web.
Maxa spar construction

The fuselage is a well engineered Kevlar and carbon pod, with a diagonally wound spread carbon boom, and fin mounted cruciform tail. The model is totally complete, and almost no assembly is required. The tail pushrods are ready installed, and all the hardware is supplied for the wing servo installation. The model comes with a ballast tube (for windy conditions) and a wiring harness.

The Maxa Pro 4e Megalight is optimised for F5J rules, whose main requirement is reliable soaring from low altitude, as higher Start Heights count against the final score. The 30 second climb window is generous, so high-power heavy motors or batteries are not required, and the model can be kept very light.

  • The Maxa Pro's aerodynamic qualities have been modelled to a new level of accuracy and by Joe Wurts. In the process Joe designed a new family of airfoils and optimised the shape of the model to get the best from the new spread carbon composites being developed by Vladimir. The result is a very low sink rate that ensures the longest duration in no-thermal conditions, while also maintaining gentle handling that inspires confidence from the first flight.
  • The Maxa Pro’s low wing loading and inertia makes it very respond to tiny air disturbances, allowing small bubbles to be detected and worked from low down, allowing low Start heights and high F5J scores.
  • The Maxa Pro 4e’s large span allows it to be seen further away than smaller models, allowing a larger volume of air to be searched, and thermals worked for longer. This is especially important for the 15 minute fly-off task.
  • The excellent lift/drag ratio, especially at higher speeds, gives good penetration, and thus the ability for the glider to return from distant thermals with little altitude loss.
  • The long nose moment allows very lightweight powertrains to be used to balance the model.
  • As the electric version can use the standard ballast system used in the glider version, the model’s weight can be tuned to the conditions, allowing the Maxa to shine in even the strongest wind.

This combination of state of the art aerodynamics, low weight, and a good size makes the Maxa 4e the best model for competitive F5J soaring, bar none. See this and this RCGroups thread and the Vladimir's Models Maxa Pro 4 EL page for a lot more info. Note some of the photos and videos show the older Maxa 4e (non Pro) version. This has a fin mounted tailplane.


Maxa Pro 4 Megalight Specifications
Wing span 3.9 m 155 in
Wing area 82.2 dm2 1273 sq in
Length 181 cm 71.3 in
Flying weight from 1270 g 44.8 oz
Wing loading 15.5 g/dm 5.1 oz/sq ft
Aspect ratio 18.8
Wing airfoil rt01/td19sag/j00/j01/j02/j03
Dihedral (EDA) 7.7º
Spinner Diameter 32 mm
Centre of Gravity 105-114 mm from wing leading edge
Controls Rudder, elevator, ailerons, flaps, throttle



Maxa Pro 4 Megalight Typical Weights
Pod 116 g 4.1 oz
Boom 61 g 2.2 oz
Wing c/s 344 g 12.1 oz
Wing tips 314 g 11.1 oz
Tailplane 30 g 1.1 oz
Accessories 70 g 2.5 oz
Total structure 965 g 34.0 oz
Wiring 24 g 0.8 oz
Receiver 10 g 0.4 oz
Tail servos 21 g 0.7 oz
Wing servos 42 g 1.5 oz
Speed control 38 g 1.3 oz
Motor 70 g 2.5 oz
Prop & spinner 30 g 1.1 oz
Battery 70 g 2.5 oz
Flying weight 1270 g 44.8 oz



Maxa Pro Megalight Recommended Servos
Elevator & rudder MKS DS6100, MKS HV6100, Blue Bird BMS-105HV, MKS HV6130H
Aileron MKS DS6100, MKS HV6100, MKS HV6130, Futaba/Robbe S3173
Flap MKS DS6100, MKS HV6100, MKS HV6130, Futaba/Robbe S3173



Maxa Pro Megalight 4 Powertrain Recommendations
Powerline Micro 1015 3S 700mAh LiPo, 15x8 prop (8 m/s, 1500 fpm, 37A)
Powerline Micro 1025/F5J 3S 1Ah LiPo, 16x8 prop (10 m/s, 2000 fpm, 43A)
Leomotion L3007-5000R 3S 1Ah LiPo, 13x7 prop (9 m/s, 1700 fpm, 39A)
Leomotion L3007-5000 3S 1Ah LiPo, 16x8 prop (9 m/s, 1800 fpm, 39A)
Leomotion L3013-4550 3S 1Ah LiPo, 15x9 prop (11 m/s, 2200 fpm, 57A)
Hacker A20-6XL geared 4.4:1 3S 1Ah LiPo, 16x9 Aeronaut prop (10 m/s, 1900 fpm, 46A)
Mega 16/25/4E direct drive 3S 1Ah LiPo, 12x6 prop ( 9 m/s, 1800 fpm, 59A)




First flight of a UK Maxa - was climbing while looping.








Reviews 5  


 Review by:

Megalight Megagood

Just a follow up note to say that I flew the Maxa Megalight last weekend at the Midland League esoaring comp at Hawling. Her first proper outing so to speak and a chance to fine tune her.

The fairly light wind conditions (8mph) and reduced launch height (to 150m) on the day made it an enjoyable challenge. Of the 7 rounds, 4 slot wins and 2 others I should have won if I landed better is the headline. A zero score in R6 is another story and unrelated to the Megalight. The Megalight got away from low down (circa 10-20m) in 3 slots to subsequently go on to fly out the slots. A good test for her. The extra 20 gms or so makes no appreciable difference (if not aids the handling as it is concentrated in the centre panel). She is incredibly mild mannered and shows the lift well.

Very pleased, very impressed and looking forward to using her in the season to come.


 Review by:

About 2 years ago I bought a Maxa 4E from Hyperflight. It's taken me that long to get it finished - and I was very careful. I maidened it about 4 weeks ago and am entranced by it. As many say, Vladimir makes beautiful models and this is no exception. It flies perfectly using the recommended set-up. It can fly amazingly slowly with zero tendency to tip stall - it is a very forgiving plane to fly. It picks up even gentle thermals well. It's not cheap but it's a brilliant model, thanks!


 Review by:

Entrancing

About 2 years ago I bought a Maxa4E from Hyperflight. It's taken me that long to get it finished - and I was very careful.

I maidened it about 4 weeks ago and am entranced by it. As many say, Vladimir makes beautiful models and this is no exception. It flies perfectly using the recommended set-up. It can fly amazingly slowly with zero tendency to tip stall - it is a very forgiving plane to fly. It picks up even gentle thermals well. It's not cheap but it's a brilliant model, thanks!


 Review by:

Maxa 4E Pro light 2014.

Design, build quality, finish and appearance are exceptional as befits an aircraft of this quality - and price!
I received one of the first 2014 models and the supplied fuselage instructions do not apply - servo positioning and empennage assembly is incorrect. An expert modeller can work this out but some time is lost unnecessarily.
Wing centre section was 50g over advertised weight (Light version) but overall weight kept to under 1900g by using light power train (Red Fox 500 outrunner with 4:1 GB, 3S pack and 13x9 folder - fine for F5J).
Flying is certainly as advertised - ie superb! Currently still trimming and adjusting but thoughts so far are:
Keep weight as far forward as possible with 110g motor. I am using 7 degree wing joiners. Recommended/template throws for Ailerons and Flaps about right for Launch, Thermal and Speed modes. Ailerons are quite slow so mix in some flaps and 100% rudder. Forty percent + rudder throw needed. All the flying comments based upon an early Maxa in Mike Proctor's review still apply.


 Review by:

An exceptionally pleasing model. I was pleasantly surprised at how it was a very straightforward assembly process, with no hidden surprises. Amazing fit, and I had no need to change any of the fittings at all. The longest part of the build was waiting for the epoxy fixing the wing servos to cure.
I opted for a bigger than strictly required motor, as this will primarily be a sport model. As a consequence I needed to add 50g of ballast inside the tail boom, under the rudder. I replaced the carbon rudder fix peg with a 3mm screw, which now secures both the rudder and ballast slug. Waiting for suitable weather to flight test.


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