Jump to content

Martin Bowman 1

Members
  • Posts

    3
  • Joined

  • Last visited

    Never

Everything posted by Martin Bowman 1

  1. Hi Craig The thrustline will not be changed it will purely be the wing incidence up a couple of degrees when on the ground , when viewed from the side my wing incidence was neutral to slightly negative which may explain the pitch up on takeoff i.e more elevator input than necessary to rotate and then of course an correspondingly high climb angle unless checked. For info my example needed no aileron trim and only a couple of units up elevator  I am determined to sort out the take off characteristics because as it a flyer it is pretty much viceless.  
  2. The wing actually comes as a centre section & two outer panels which have predrilled dowel locators and an aluminium tube wing spar , Iagree with Craig's post in that at rotation the model does leap in the air and a dab of down elevator is needed to check the climb angle. My current mod is to introduce packers between the nose gear & mount to give a slightly more positive angle of attack when on the ground ( cannot fit a bigger wheel due to clearance issues)
  3. I had a similar problem on mine powered by an OS65AX, roll to left on take off fortunately into a corn field with no damage. Post incident assessment was insuffcient speed on rotation even though i was fairly sure the speed was sufficient .   Second attempt more speed and flat climb out with no problem. The model flies well with no tendancy to tip stall and landings with full flap are smooth & stable .   The nose gear is unfortunately complete rubbish as you will no doubt find out after a few landings, i spend more time modifying the gear than flying the model and in reality it needs changing for a Robart or something similar. Good luck with the re-build
×
×
  • Create New...