I scored an ARF Flite Streak kit at the Golden State Championships a year ago ($30!  ), and am assembling it as an electric. Motor is a Turnigy AS-3 35-36 -1050. I am thinking an APC electric 10x6 or 10x7 prop. Does that sound about right?

Actually, my question was not complete. I should have also asked what lines and battery to use as they all inter-relate.

Thanks for the input so far. 

Pat Johnston reports that he has been using a 4s 1550mah battery and a 10x6e on his 28oz Shark 402 which is Flite Streak sized.

I flew it today with an APC 9X6 EP prop on 52’ .012 lines. Performance was marginal. Will try a Master Airscrew 10x6 p prop next. Plenty of power margin on the 2200 3s battery so far. 2 minute flight used 23% capacity.

Thanks for all your input!

On 50ft. lines, the plane is flying great with this prop. Power consumption is about 250 Watts. 

Weight with a 3200 mAh 3S is 30 ounces.