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Engine installation
Modelcompositi anti vibration engine mount
also available from Probuild
Model Santosa (Formally Ultimatum)
Manufacturer Estel (Distributed in UK by Probuild)
Type of kit Kit (High grade balsa + Foam)
Wingspan 1890mm
Length 1990mm
Weight 4.7kg
Wing Loading 64.12dm2
Engine recommended YS 1.40L 4 stroke
Engine used YS 1.40L 4 stroke
Exhaust Hatori Header – Greens full length pipe
Prop APC 16x10
Build/assembled date Jan 2003
Quality of Kit
Flying Characteristics
Overall rating
Comments 3D F3A kit Kit made by Estel Kits supplied by Probuild. Probuild is the UK distributor of these kits. Ultimatum was it's original name, but as 'ultimatum' is such a negative word, the aircraft was re-named 'Santosa'.
Early days for this one as it’s still being run-in set-up etc……. but initial test flights have brought a smile to my face.

Very poor
Above average           

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