I got a call from fellow model builder, Bill Gruby, about using EDF for powering an interesting model that he is building, It is a kind of spin off of an A-10 jet and he is now proposing to power it with two ducted fans. This A-10 variant is a bit of a monster at 74 ½” span and Bill estimates coming in at 8 pounds or so. He also estimates speeds of 100 -200 mph!!
This is a project that he had started a few years ago and it got shelved. Anyway, he is now again moving forward with the A-10 build. Bill knows little about EDF power and he asked me to advise him on an electronic setup for this plane.
What makes this an interesting project is that it is going to be a control line model rather than an RC plane!! Control line models fly in a hemisphere on two lines which control the elevator – in this case 70 foot steel cables. EDF is virtually unknown in the control line branch of airplane modeling and I know nothing about it myself, so I am appealing to this forum to help him select a suitable power setup.
He tells me that he has ordered two ducted fans from Hobby King and now wants to know what
Battery (he wants to run both fans off of a single battery)
that he can use for this plane.
Bill says that he also wants to be able to control the thrust from each ducted fan independently from the other. I think that a 2.4 Ghtz RC car transmitter and receiver can be used to control the thrust. What he needs is suggestions for the ESCs and the battery. He is looking for a 5 to 6 minute flight duration if under full power.
Here is a link to the EDFs he has ordered: http://www.hobbyking.com/hobbyking/s...00w_10s_.html"
Thanks for any suggestions that you may have.