Thanks for the many replies.
David Im sorry ,I know nothing about the weatronics 2.4system so cant comment.
Silent Lamb I agree with your views BUT like I've said in my earlier post "right Installation" and setup were not the issues with the airplane that crashed
My only reason for posting this was to see if others were having similar issues with 2.4 tech.
I probably dont fly as much as some other people, I am at best a serious weekend flyer who logs 5-8 flts a week , we fly all year as we dont have extremes of weather and
based on my experience a 1% failure rateis simply not acceptable ,
It raisesa very serious Safety issue which unfortunately will not go away when there is an incident.
Even today , sometimes when I power up myearly JR 9X II which was converted to 2.4 (Spektrum Conversion) ,It still is erratic- sometimes will bind immediately at other times will have to beshut down and powered up again BUT I have 168 flts on my Bobcat with this radio.
Im not saying 2.4 does not work - What Im saying is WHENit does not work we have no clue why
What Im saying is that due to the erratic intermittant nature/behaviour of the 2.4 system with a failure rate of1% is it safe enough for JETS ?

Every country USA,UK Europe etc have their own laws/rules for evaluating the airworthiness of Jets and Largeaircraft and I think not enough consideration is given to the control system in use.
Manufacturers cannot simply be allowed to get away with clever marketing and be allowed to commercially release aunproven product and continue to develop and refine the product at the cost of the customer - It is unfair !
This is exactly what Spektrum has done.
Was there ever a mention of"Brownouts" when the first Spektrum conversion kits were released ?
So also,fast rebooting receivers were unheard of !
Clearly the technology was introduced prematurely and has been refined at the cost of the customer and even today is still evolving.
Xantos