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Old 10-02-2014 | 01:31 PM
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Gonzalo38
 
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From: Santiago, CHILE
Default SPT-5 acceleration problem

I was finally able to fly test my SPT-5 after receiving it back from Germany were it was repaired (change three bearings and one gear wheel). The turbine performed OK but I did notice something estrange.

The turbine doesn’t have a smooth acceleration and it only picks up on the last 1/4 of the throttle stick. I have another SPT-5 were I don’t have this problem. Acceleration is very smooth and the turbine reacts with every click of the radio. On this one as I said, there is a big jump when you move to 3/4 of the throttle stick. This makes throttle management extremely difficult and makes it difficult to keep a stable speed during final approach


I have checked my radio (Futaba 18MZ) and compared the programs of both SPT-5 equipped planes. Everything is the same and there are no dual rates, exponentials or servo slow functions activated.

Could this be something related to the ECU program ? Mine should have a 6.10R software version.

Anybody has experienced something similar with Jetcat turbines ?

I do remember that several generations ago, Jetcentral turbines had to be thought and go through a complete process of acceleration click by click. Jetcats are different and I have gone through the learning process stated in the manual.