Hi Garabaldy
Cos918 persuaded me to register, The Turbine in my photobucket account is fitted to a model power boat a "No Mercy" by MHZ Germany.
http://uk.youtube.com/watch?v=_DBylU7fDyY&feature=channel_pageWould like to fit it to my Finnjet model for ultimate scale realism but would I suspect end in a fire ball.
The Stabilizers you asked about how they work, well quite simple really, Inside the watertight box into which they retract there is a verticle shaft, at the top of this (outside of the box) there is a tiller arm to connect to the servo that extends and retract the fin by servo.
On the same shaft inside the box there is a short verticle tube soildered on app mid way between top and bottom, inside of this brass tube is a shaft with the fin on the outboard end and a small spade on the other. When the fin is in the extended position the spade meets with a brass cup which in turn is connected to a shaft with a second tiller arm that transmits the tilting action to the fin by a servo. when retraded the spade is no longer in the cup and is unaffected by the cups movement.
Are you still with me?
The servo that controls the tilting via the cup joint is in turn connected to a modified model Helicopter gyro, the gyro no longer spins but instead has a pendulum added. This sences the roll of the boat and sends signal to servo, ie roll the boat to port makes the port fin trailing edge rotate down and the starboad fin trailing edge upwards. exactly as per full size.
The extending and retration of the fins is done by a rotary switch on the transmitter.
