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Dad_flyer

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Everything posted by Dad_flyer

  1. Motor mount glued in. Had to be pushed a little to the left as the right thrust angle was an afterthought and I had not allowed for the amount that this moved the spinner. Everything fits and the spinner is central. Put in a couple of extra air holes behind where the louvres will be. Very much looking the part now. 30 wing ribs also cut to shape.
  2. Cockpit cutout made and rear deck fitted but not shaped. The pilot seems to be happy with it. I shall need to work out a removable deck for him to sit on soon, that is the battery access. I did not like the idea of fitting the cockpit sides (11) to the rolled decking, so I made the rolled decking all the way back to the rear of the cockpit and cut the cockpit afterwards.
  3. Rolled decking now on and cowl started. The front panel is not glued yet, just in for looks!
  4. Original prop recommendation is 8x6 APC-E. That is the small end of scale diameter, so might go to 9" if ground clearance is ok - the motor is rather low kv. Motor planned is Airmax 2826 1000kv on 3s. 18A max. That will go together all being well. I had to design up a mount to fit and put the prop in the right place. Fuselage coming together. Plan suggests opening outformer (4) like (5), but that is a square hole, leaving the former thin at the corners. Instead I used the rounded opening from (14) This is the motor mount, just slotted together for now. Looks ok, but will it fit? Former (2) is opened out as I think the lighter motor and battery than the design will mean that the battery needs to go further forward. The plan warns it may be tail heavy anyway. Also, the prop shaft is short, so the front radiator (16) needs a depression in the back. Used two 1/8" instead of a 1/4" to give the big hole at the back and less at the front. Also gives something behind to hold the louvres with.
  5. Well, Dad_flyer has not yet learnt enough to be able to fly one, but Child_nonflyer likes the look of it. It will live in Child_nonflyer's room. So, it is build time with a cast iron "but it's not for me", and no storage implications. What is not to like? It will fly, just not yet by me. I have finally selected a brushless setup that I think will do for a replacement of the 400 setup of the plan, and Christmas brought me a bundle of balsa, so let's get started.Edited By Dad_flyer on 30/12/2018 15:32:12
  6. Good to hear from Nigel and Old Geezer that the Wot trainer can come in under weight. I was taking the pessimistic end of the manufacturer's stated weight. Someone flies one at our club, but I don't know the weight. I do love the colour scheme for visibility and orientation. Looking at the Bushmmaster again, it may be salvageable. Wing and tail feathers are in one piece. Fuselage will need work, but the mud came out of the motor. I still shall need a trainer whilst I improve my skills.
  7. Thank you both. The E-Pioneer was suggested on 4s above, but looking at the 4-max site it can be only 4lbs and 3s is suggested.
  8. Resurrecting this thread as my foam Bushmaster had a landing today from which it will not recover. I have built a Mayfly (2s electric 16oz auw), which my novice skills get up in the air and down safely. Really easy to fly, but then not learning much. The Bushmmaster was a lot bigger and heavier: better in a wind like today, but it was never really a trainer and needed all of its 4s power. The Boomerang and Wot Trainer suggested here are both even heavier at 6lbs. The OP asked for 3s or 4s. Are there any good 3s trainers? 3.5lbs on a 3s 2200. The non-foam Wot4-E is that size, but more acrobatic than trainer... I mostly have a friend on a buddy box, but not always. (Not today)
  9. I crashed and repaired my foam trainer a while back. When repairing the motor mount again yesterday I noticed that the wing bolts are not in line with the motor and tail. I checked with the wings on, and they are indeed at an angle. The difference is noticeable if you look from above. I measured the left wing tip is about 1" further from the tail root than the right tip. About 60"span. It is not a simple banana in the fuselage, the thrust line and the line of the tail are aligned when viewed from above. She has flown OK but not many times since the crash. What flight characteristics would that angle have been giving? I can't at the moment see a way of correcting it.
  10. Dad_flyer

    Out of trim

    After crashing my foam Bushmaster, I had little idea where 'straight' was for the re-build. The club member who took it up for me was excellent and got it from almost uncontrollable to a state where I could fly it. Really hit home the need for trimming to be part of my progression from beginner. The re-build had already made me reach for a balsa build so I know what shape it needs to be returned to if it comes home in pieces.
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