Sessanta Electric 1.5m

We are looking for an experienced modeller to write a build log for this model.

The Sessanta Electric is a new 1.5m (60") hotliner type glider from James Hamond. This very pretty model flies as well as it looks, with sweet handling, a great speed envelope and easy landing thanks to its large flaps.

Continuing technical development of previous designs which have gained him a worldwide following, Dr. James Hammond is very pleased to announce his latest entry the electric glider market. James designed the Sessanta Electric as a modern, sleek, and high performing hotliner to complement his slope design and leverage his expertise.

With a single piece wing incorporating completely new and radical wing planform, new aerofoils, new, sleeker and stronger fuselage and the game-changing sine wave spar, the new “Doc J” weapon is extremely quick, yet has all of its older Sunbird brother’s great flying characteristics. More info here.

The rudder and elevator servos are best fitted in the tail. A fairly complete accessory pack is included with a nice wiring loom. Note this does not include a ballast tube or firewall.

Layup Options
L = Light = Lowest weight, reduced strength
S = Sport = medium strength & weight
SS = Super Sport = strongest strength & higher weight

Spinner diameter: 36 mm

Sessanta Glider 60 Specifications
Wing span	1.53 m	60 in
Wing area	22.5 dm2	349 sq in
Length	97 cm	38.0 in
Flying weight from	1100 g	38.8 oz
Wing loading	48.9 g/dm	16.0 oz/sq ft
Aspect ratio	10.3
Wing airfoil	JH3680	JH3675, JH3670
EDA (dihedral)	0.0º
Centre of Gravity	70-75 mm from wing leading edge
Controls	Ailerons, flaps, rudder, elevator

Powertrain Recommendations
Motor	XPower F2925/8 Windy
Battery	3S 1.5-3 Ah LiPo (choose size to aid correct CG)
ESC	Dualsky SUMMIT 60XU6, Dualsky SUMMIT 60XU8, YGE 65LVT
Prop blades	GM 11x6
Spinner	36mm GM F5J Spinner, 5mm Split Collet for GM Spinners

Recommended Servos
Rudder (front)	MKS DS6100, MKS HV6100, Blue Bird BMS-126WV, Blue Bird BMS-127WV, KST DS145, KST DS215MG, KST X10-710, KST MS320
Elevator (rear; 8mm)	KST X06, KST X06H, KST A08, KST A08H, KST A08, KST A08H, CHA DS06, CHA LV06, CHA HV06, MKS HS75, MKS HS75H
Flap (9mm)	KST HS08A, KST HS08B, KST X08H Plus, KST X08 Plus, KST A08H, KST A08, KST X08H, KST X08, CHA HV85H, CHA DS09, MKS DS6100, MKS HV6100, MKS HV6110, Blue Bird BMS-125
Aileron (8mm)	KST HS08A, KST HS08B, KST X08H Plus, KST X08 Plus, KST A08H, KST A08, KST X08H, KST X08, Blue Bird BMS-A10V

The wing is very thin and 8 mm servos are required for the ailerons, and ideally 9 mm for the flaps. 10 mm thick flap servos can perhaps be used but the servo covers will need adjusting.

Sessanta 60 Glider Sports Layup Typical Weights
Wing	430 g	15.2 oz
Tailplane	45 g	1.6 oz
Ballast tube	10 g	0.4 oz
Accessories	12 g	0.4 oz
Total structure	727 g	25.6 oz
Wiring	37 g	1.3 oz
Pushrods	15 g	0.5 oz
Receiver	8 g	0.3 oz
Elevator servo (rear)	7 g	0.2 oz
Rudder servo (front)	12 g	0.4 oz
Wing servos (4)	34 g	1.2 oz
Battery	100 g	3.5 oz
Nose weight	160 g	5.6 oz
Flying weight	1100 g	38.8 oz

Light layup - approx 50g lighter lighter than Sports layup (above).
Super Sports layup - approx 100g heavier than Sports layup (above).