for the airframe and scale performance rhino is great
if you need vertical and aerobatic alpha climbs and rolls
my budd switched to p 200 and is quite happy
have not seen the 1/6 fly eagle yet f 16
i have only seen the 1 5.5 fly eagle jet fly this weekend with mammoth and it moves
good build

as far as my viper it will be the cheetah
definitely want to go power
raj in the fly eagle site had it with k 80 for maiden and said it was fine
but has recently switched to k 140 also 31 lbs he said there is definitely a difference
check your weight eagle is heavier i believe but it should be nice
but definitely a cheetah 31 lbs need the power
also will have smoke system
need plane show ready cant wait