RE: V-Mar F-4 - First Opinion out of the box...
to anyone with a vmar propjet, I would NOT recommend useing powerful engines. IMO something like a Jett 90l is injustice to the Jett, these prop jets arent really speed planes .
I have the Vmar F4 phantom, I use a ST G90 on a 12 x 8..thats plenty..yes vmar stuff is still crappy, they have tried to improve..still got a long way to go, epecially for the price they charge.
like all arf's, they tell you to check all the hinging and control surfaces, whilst in most cases they feel tight when assembled, they can work loose once put into service, I havent had this problem yet, but then again I have only had about five flights with mine
I dont think they are worth pushing to the limits, eg trying to get max speed... they'er just not configured the right way for this.. althought I have no expirence with Cermark, ..for the money and the need for speed .. their F16 would be my choice..(cyclic..see I didnt mention AKM kit!!!)