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Geronimo C is EP glider of 100" (2540mm) wingspan, suitable for class F5J.
It can be used typically fro the Czech national class RCEV. Actually, it is the FAI class F5J, just the wingspan is limited to 100".
It can be used typically fro the Czech national class RCEV. Actually, it is the FAI class F5J, just the wingspan is limited to 100".
Geronimo C is probably the first model with structure foam core/carbon skin, molded in hard aluminium negative molds.
The core material is foam Rohacell. The exact shape is machined on CNC router. The material of the skin is bidirectional carbon CW IMS65. The surface weight is 30 grams/m.sq.
The fibres are laid in agles +/- 45 deg.
The core material is foam Rohacell. The exact shape is machined on CNC router. The material of the skin is bidirectional carbon CW IMS65. The surface weight is 30 grams/m.sq.
The fibres are laid in agles +/- 45 deg.
Unlike the common cloth, the carbon layers are simply laid one over another. The carbon is stressed exactly in the diection of the stress. This way the mechanical properties of the carbon are increased.
The wing is more stiff while lighter.
The wing is more stiff while lighter.
The parts are molded in hard aluminium molds under high temperature. The propeties of the materia are increased and the danger of the "orange" which can develop in time is removed.
Other new features:
The wing airfoil was changed. Instead of the AD series airfoils the new MID line are used.
The fuselage pod was changed. Its shape in front of the wing differs. Also, the fuselage under the wing saddle is higher. Now it can accept both tail servos. The pushrods are shorter. The common 1 meter pushrods can be used.
The space in the fuselage in front of the wing was increased and it can easily accept the parts of the power unit.
The tailboom is lighter, what decreased overall weight of the model.
The space in the fuselage in front of the wing was increased and it can easily accept the parts of the power unit.
The tailboom is lighter, what decreased overall weight of the model.
The fuselage is of classical design: carbon/Kevlar pod and carbon/glass boom.
| Specifications | ||
| Wingspan |
2540 mm | |
| Wing area |
43 dm2 | |
| Length |
1410 mm | |
| Empty weight |
ca 430 g | |
| RTF weight |
ca 720 g (depends on the equipment used) |
|
| Wing loading |
ca 14 g/dm2 | |
| Wing airfoil | MID |
|
| Spinner dia. |
32 mm | |
| CG position |
ca 90 mm from LE at root |
|
| Controls |
Rudder and elevator, ailerons, flaps, throttle. |
|
| Recommended servos | |
| Rudder and elevator |
MKS DS61xx, KST X08 V5, Hyperion DS09-SCD |
| Ailerons |
Hyperion DS09-SCD, MKS DS61xx, KST X08H V3 |
| Flaps |
Hyperion DS09-AMD, MKS DS61xx |
| Recommended power for class F5J - 100" | |
| Motor |
Dualsky ECO 2312C V2 KV1150 for 3S
Dualsky XM 2230EG-16 KV1600 pro 3S |
| ESC | Talon 25 - Talon 35 |
| Battery |
LiPo 1000-2S
LiPo 900-3S
LiPo 600-3S |
| Propeller | Aeronaut, GM Prop 9x5 (3S) - 10x6 (2S) |
| Spinner | Alu spinner 32/3,2 Carbon spinner GM 32/3,2 |