IAN NELSON'S TOP FLITE P51-D MUSTANG
It has been a few weeks since I updated the WIP of
the Mustang. With the nights drawing in and the temperature reducing
dramatically, I don’t seem to get the urge to go in the garage as
often as I did. I had a word with myself and over this weekend I have
made reasonable progress on the building.
 As
you can see, the basic fuselage box is complete (left) and I have
added the radiator bottom and sides. The next step was to fix and align
the wings. Again, following the handbook and tried and trusted methods,
the wings were aligned to the fuselage with a pin in a temporary
sternpost and a piece of string to the trailing edge of rib W12 each
side (right). I have to say the wing fitted perfect with the
alignment spot on. I then fixed the wing with pins whilst I drilled the
wing bolt plate mount on the wing and the fuselage. At this point I
deviated from the manual. It stated that the wing bolt acceptance plate
in the fuselage should be drilled and tapped to ¼ - 20 tap and then
strengthened with cyano. "Well, call me old-fashioned", but I
don't possess American sized taps and I wasn't happy with a large wing
being held on with two nylon bolts tapped into plywood. I went for the
more conventional method: T-nuts epoxied into the fuselage wing bolt
plate. It was then that I had a long lay off.
 This
weekend I have taken up the challenge again and I have attached the tail
feathers (left). Following the manual and conventional methods
the tailplane fitted perfectly into the receiving saddle
followed by the fin; they were tacked with cyano and when the last
alignment check was done all the joints were epoxied. As
you can see from the photo to the right, I took Allan Knight’s advice
and lightened the back end; note the holes in the rudder plate, you can
also clearly see the flap structure which I have yet to sheet over. Also
note the cut-outs in the fin and stabiliser; these are
the scale slots for the control surface counter balances. I have yet to
get a set of retract units - I cannot get hold of Robart #605 90 degree
legs at my local model shop, so I will have to do some ringing around
mail order shops.
Well that’s about all for now. My next report should
be about the engine alignment and completing the fuselage skinning, the
Christmas break should see a better shape in the next report.
Last seen on work
in progress #47
|