Here is something i found years ago for guys with radios not able to go to preset servo posistions when signal problems arise. i used it on throttles , to go to idle on my prop planes only....good on any r/c vehicle for saftey tho...[ i,m not saying this can be used on turbine engine shut down..but it might..i have not and wont try it since i use a 10x radio on my turbine bird].. if you can afford a turbine you need a good fail-safe radio.. but this gizmo is good for prop-jet planes,dfs,etc.,and older or less expensive radios without fail-safe capability built in from factory...........http://h1071118.hobbyshopnow.com/pro...p?prod=DYN2550

There are a few of these "Fail Safe" units that are purposely made for cars. The problem is that most of them state not for use in airplanes. I checked the site and it did not mention anything, but cars and boats.

example: Futaba FS-1 Fail Safe Unit - This is a Fail Safe Unit for Use with CARS and BOATS with Futaba "J" Radio
Systems. NOT FOR USE WITH AIRCRAFT OR HELICOPTER RADIOS!

I'd get a good TX/RX combination that is capable of fail safe for any turbine jet. I would not trust one that does not specifically mention for aircraft use.

Just my .02 cents

JR Gautreaux

IMHO, a properly designed unit like this could indeed be used to meet the new turbine failsafe requirements.

Now I know nothing of the unit you are mentioning, as as stated the Futaba unit is specifically not for planes, but that does not mean one could not be designed.

This is a BIG saftey adder if you don,t have a radio that does it ..I don,t believe the ama or anyone would care if this is on a plane or whatever..your better off with one than not having anything to take motor to idle or off... I have used them for years on prop planes without any problems... so like i said, if someone has an older radio ,or can,t afford a good one, this works great..its nice having a good radio but not everyone can afford one ...this is for the guys who can,t or just can,t see putting out that much money..... i think the only reason some of the mfgs. say not for a/c use is for thier own liability,due to fatal accidents being a lot more possible with a/c....[imho] every plane should have fail-safe engine shut down at least to idle..I think we all can see the safety benefits of that..

There is another thread that mentions this sort of thing at the moment.

I am interested to know if anyone who flies jets uses a radio that does not have failsafe? I would have thought that everybody was using this type of radio. If you take into account that a Futaba 7CAP cost $269.99 including receiver and two digital servos, it is not really expensive technology. Especially when you compare it to $3,195 for a Jetcat P80.

I,m sure there,s a lot of [ prop ] jet and DF flyers, that don,t have radios with fail-safes..I would not fly any plane without one , personally. I agree tho, if you can afford a turbine you should have a radio with fail-safe from factory.... I doubt many, if anyone ,is flying a turbine without a radio that has fail-safe capability from factory.. LET ME BE CLEARER,,,so we won,t waste our time agreeing,,THE TIP WAS FOR PROP-JETS, PROP PLANES ,DFs etc.,,,,NOT TURBINES ..THIS FORUM IS NOT JUST FOR TURBINES.. [btw],I,m now a turbine only flyer myself.,,,but i don,t want any prop planes hitting any of us jet flyers...

You can go to www.fmadirect.com and check out the FS5 Rx, it has digital signal recognition and failsafe presets and is used on PPM. Also the FS8 Rx, the optional Co-Pilot can be added, but is NOT necessary to accomplish the goal of a failsafe FM radio. I have both the FS5 and FS8, simply put, they work. However, in my turbines I use PCM.