The Jetfan is one good choice, the 685Kv motor is not however, only good for 10s, the HET motors have been having trouble with heat in the JF120 setups, I don't think the new sleeves over the magnets are going to stop the heat buildup issues. The 590Kv long can is the only one I would recommend, and only up to 12s with the JF. We have the combos here: http://www.extremerc.com.au/estore/i...oducts_id=1434

If you can fit it I would also recommend looking at our Extreme CNC Alloy 127mm fan with 11 blade ramtec rotor and HET 800 series motor. The heat issue is largely gone with my fan housing as it acts like one big heatsink and with the airflow through the fan the convection cooling is very effective. I have customers in the US flying my fan on 14 cells in large Jet Teng viperjets, 1.8 metre wingspan 10kg models, quite draggy but still hitting 170mph+. Smaller sports jets are hitting 170mph+ on 12 cells.
You can find the Extreme Alloy 11 blader combo here: http://www.extremerc.com.au/estore/i...oducts_id=1218

I recommend our Platinum PRO 120A HV-ESC for both these fans on 12s, very tough ESC with excellent programming features. Waiting on stock of these right now, fans and motors all in stock. Also bear in mind all pricing is in AUD, so when its converted back to USD by your bank the prices are lower, for example the Extreme 127mm Alloy fan at AUD$499.00 is going to end up around USD$380 when converted, I don't think you will find a better deal anywhere for an assembled dynamically balanced ready to install fan!