This 49” span Avro Vulcan, from the Tony Nijhuis free plan in RCME was built by Neil King.and flown on a number of occasions until gravity claimed it last year. Neil comments:
“The Vulcan was 48 inch span design by Tony Nijhuis with four 50mm ducted fans ,retractable undercarriage and two 2600 lipo 3 batteries, one carried in each wing supplying two fans.
When actually in the air it flew well but suffered from being underpowered. Another major problem was with 4 fans and speed controllers being in such a confined space, overheating of the speed controllers caused fan failure and crashes. Having the batteries in the wings may be convenient, but again cooling is a problem with the two fans drawing 50 amps, the batteries became almost to hot to handle.
There is now a 72 inch version using two 90 mm EDF, which means two unused inlet intakes and lots more space. I am thinking about it.
The MIG 15 was finished I thought, but would not fly due to lack of thrust. The 50 mm edf was a redundant unit from the Vulcan. This is one of the four mini jets designed by Tony, another one being the Hawker Hunter of which an article appeared in January’s RCME magazine. I wish I had read this earlier as he is very specific about not fitting earlier 50 mm units as you will be very disappointed.
He recommends the 3s FMS units which give 600g/1.37lbs static thrust with a current of 32.1 amps. The old unit drew 27 amps with nowhere near this performance. A 4s FMS unit is also available
EDF units available from 4 Max.
Now back to rebuilding and fitting appropriate EDF in the MIG