I use Futaba 401 in my Euro. I suspect that any cheap gyro that can be turned off from the transmitter will work. Gyros really help to exit flap spins and tumbles. Just release the stick and you are set!  I have flown my euro without gyros and exiting flat spin was a little on the scary side as a lot of inertia was building up.<div>
</div><div>I think you want to be able to turn them off when flying in non 3D mode or to get more extreme maneuvers like faster flat spins.
<div>
</div><div>Have fun!</div><div>
</div><div>Arnaud</div></div>