Any advice on the E-Flite BAe Hawk 15E?

[Frank v B]

Am building this after I was given an offer I could not refuse.  The model is un-built (NIB).  The power unit is the E-Flite fan and the 15 inrunner 3600 kv.
Anything to be aware of when I build it such as strengthening, wheel size, 3 or 4 cell, etc. ? 
All advice and insults gratefully accepted.


Frank

[sihinch]

With that kV in a 69mm EDF plus the weight of the aircraft, I would say 4S is essential.

[Frank v B]

Simon,


Interesting comment.  The instructions say it can be flown on 3S (sport) or 4S for more vertical performance.  4S produces double the watts over 3S (644 vs 305).  I will build it for 4S. 
Remember: "you can always throttle back...if you have to".  It is difficult to fly any airplane with marginal power (my definition versus yours   )


Thanks for the advice.




Frank

[Michael]

If this is the same DF unit as in the Habu, then 4s is correct.

[sihinch]

With EDFs, I find a 300 watt power input will not give anywhere like the same performance as it would with a prop plane.

[Frank v B]

Funny that 300 watts/lb is a starting point.  EdEdge probably considers 300 watts a rounding error.


Frank