Techniques > Misc
Prob building Phase 6 fuselarge.
Happy Days:
Hey Brian,
I remember you telling me to grp reinforce some part of my Phase 6.
The instructions recomend putting a layer of glass inside the bottom of the nose, but I'm sure you advised somewhere else as well,..didn't you? :?:
Keith
Brian:
Hi Keith,
Yes I did, that model is prone to breaking at the wing area during 'crash landing' which is a frequent occurence on some slopes.
So sand the ply (inside) sides and floor from 25 mm in front of the wing to 25m behind the wing and glass these pieces( before assembly is best).
The two formers will have to be sanded to allow for the glass.
Are you going with two wing servos? This helps.
Brian
Happy Days:
Thanks Brian.
I've already assembled the fuse, however I'd also already sanded all of the ply parts first, for this very eventuality.
As for wing servos, ......................I've cut out each bay in the underside of the wings.
Linned the bottom of the bay with a piece of ply, ( sanded on both sides) and stuck with epoxy,..............
And secured the servos in place with double sided tape. (This servo has not been stuck in yet, had to make a hole down the inside of the wing for the lead first!) :roll:
)
I've also decided not to secure the wings with peg and screws. (Yet) I'm gonna go with banded wings untill I'm be sure I can land this bird gently.
I'll keep you posted!
Keith
ps.
Is your Duck ready yet? It would probably fly very well in all this rain :P
Happy Days:
Okay, coming to the final stages of this build, and I'm looking at setting up the control surfaces.
I want to use flaperons. Reason:- to slow the model for landing and reduce the stall speed of the bird, (so she touches down at a lower speed and does less damage.) (At least, that's the idea :?: )
My Tx is a Futaba T6EX. Although it has flaperon ability it's only an 'On/Off' switch. There is no proportional controll of the flaperons. i.e. with the switch off.......the ailerons work as ailerons,.....with the switch on.....both ailerons deploy down by a predertimined % of their total downward movement. (The ailerons will still move as ailerons, but either downward aileron will have a very limited degree of further downward movement.)
My question is;................ What % of total downward movment should I set the flaperons to?
I want to slow the plane as much as possible so as to touch down slowly, but I also want to retain as much roll controll as possible. (To keep the wings level)
Someone clue me in on this please :?:
Brian:
Hi Keith,
I do not like using full length ailerons as flaps.
It makes the wing more prone to tip stalling.
Also we are nearly always trying to land where there is still some lift.
I would use them as spoilers up to 35 degrees, but in a mix with elevator.
I set this up on my throttle so it is proportional, and so that it works like throttle ie back on stick = slow.
Brian
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