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Model ManufacturerModel Manufacturer :
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Graupner
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Model typeType of the model, depending on propulsion and form. :
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Plane
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Model specialsSpecial designation of the model :
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Sea Fury
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Model sizeModel wingspan for planes, rotor-length for helicopters, and chassis width for
quadrocopters :
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900 mm
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Model weightWeight - ready to fly incl. Batteries :
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870 g
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First service dayFirst active service date :
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2016-06-29
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Model End of LifeEnd of Life of the model. Usually this is the case when it crashed and was not
put back in shape. :
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2016-07-17
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Link to Manufacturer page:
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www.graupner.dePopup: https://www.graupner.de/WP-SEA-FURY-900-RCElektroflugmodell/9351/
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Comment on Model
This plane never really flew well. The CG was wrong, causing a first crash landing (Not too hard). After that - adding a second battery to the front (100g) made the flight capability a little bit better, however in mid-flight
it started rearing up again but I managed to control it even though it gave me a tough time. Until at a time the commands didn't respond anymore. From around 25m greasing into the ground. There wasn't much of the wood that didn't break.
All the equipment (Engine, Servos, Battery, Rx etc.) was fine though. Eventually telemetry will tell me what happened.
Update: Telemetry and analysis showed that in certain situations the Rx power went down below 3V. Mainly when using the elevator servo. That explains also the no-response when the crash happened. The Elevator servo was tested and showed a current drain of steady 2A doing nothing, however consumption grew when applying pressure. The Rx showed no reboot, that is because it works down to 2.5V, the servos however stop reacting at 3.6V.
On top of that, the cable to the elevator servo was disconnected, but that could be due to the impact.
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