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Infinity F5J 3.5m

Product Code: INFINITY
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Price: $1,760.93

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The Infinity F5J is the latest high tech ultra lightweight model to come from Slovakia. The heart of the model is the excellent wing with specially developed airfoils by Dirk Pflug. Superbly molded from biaxial spread carbon, the design has been optimised for catching low level thermals. Its 3.5m span is considered in Europe to be the optimal size for getting away from low starts, and its generous wing area gives it a low loading so it can turn tightly and make best use of the small weak thermals often found at lower altitude. Its two piece wing reduces inertia so any bumps in the air are shown very clearly. This wing configuration also makes for an uncluttered fuselage, allowing easy powertrain and RC installation.

The Infinity F5J is available in two layups:

Light - the wing is made from 40g biaxial spread carbon and the tails are from 24g biaxial carbon, giving an empty airframe weight of approx 850 g.

Performance - the wing is made from 60g biaxial spread carbon and the tails are from 40g biaxial carbon, giving an empty airframe weight of approx 990 g.

All models are supplied with nice wing and tail bags and well engineered ballast systems that can add up to 330 g to the model's weight in three steps. This makes for a very flexible model that will excel in most flying conditions.

We only stock the Pro Build version of the Infinity. This has servo frames fitted and IDS systems installed. Also included are a wing wiring harness with all connectors, servo covers, and push rod hardware.

See this RCGroups Infinity thread for more info.

Infinity Specifications
Wing span 3.5 m 138 in
Wing area 74.6 dm2 1156 sq in
Length inc spinner 165 cm 65.0 in
Flying weight from 1220 g 43.0 oz
Wing loading 16.4 g/dm 5.4 oz/sq ft
Aspect ratio 16.4
Wing airfoil Dirk Pflug special
EDA (dihedral) 5.0º
Spinner Diameter 32 mm
Centre of Gravity 120 mm from wing leading edge
Controls Rudder, elevator, ailerons, flap, throttle

Infinity Typical Weights
Fuselage & pushrods 123 g 4.3 oz
Wing inc joiner (Light) 677 g 23.9 oz
Tailplane (from) 38 g 1.3 oz
Fin (from) 37 g 1.3 oz
Accessories 45 g 1.6 oz
Total structure 920 g 32.5 oz
Wiring etc 20 g 0.7 oz
Receiver 12 g 0.4 oz
Rudder servo 10 g 0.4 oz
Elevator servo 10 g 0.4 oz
Wing servos (4) 40 g 1.4 oz
Speed control 37 g 1.3 oz
Motor 78 g 2.8 oz
Prop & spinner 23 g 0.8 oz
Battery 70 g 2.5 oz
Flying weight 1220 g 43.0 oz

Infinity Recommended Servos
Elevator & rudder MKS HV6100
Aileron MKS HV6110
Flap MKS HV6110

Infinity Powertrain Recommendations
Powerline Micro 1015 3S 500mAh LiPo, 15x8 prop
Powerline Micro 1025/F5J 3S 900mAh LiPo, 16x8 prop (10 m/s, 2000 fpm, 43A)
Leomotion L3007-5000 3S 900mAh LiPo, 14x8 prop (9 m/s, 1750 fpm, 39A)
Leomotion L3007-5000 2S 900 mAh LiPo, GM 16 x 8 prop
Mega 16/15/4CE direct drive 2S 850 mAh LiPo, 11x6 prop (6.7 m/s, 1300 fpm, 30A)

Infinity Control Throws - Suggested Starting Values
Rudder 7 mm each way
Elevator 10 mm up / 10 mm down
Ailerons 20 mm up / 10 mm down
Ailerons As Flaps 3 mm up / 5 mm down
Recommended flight mode settings
Speed Flap 1.75 mm up / Aileron 2 mm up
Cruise Flap 0.75 mm up / Aileron 0.75 mm up
Thermal A Flap 1 mm down / Aileron 1 mm down
Thermal B Flap 3 mm down / Aileron 2 mm down
Snap Flaps Flap 10 mm down / Ailerons 9 mm down

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