Build log of the building of the Vario
McDonnell-Douglas 900 Explorer
NOTAR tail rotor less helicopter
in UK Air support livery
Page 15

   

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         A built Vario MD 900 kit (by Vario)                                  The real thing in UK Air Support Colours

           
I have proceeded with the cockpit after scouring the web looking for pictures of the MD900 cockpit, which are few and far between.  One point that I have noticed is that the centre console is almost always painted grey, although the instrument panel remain black in most cases, but not all.

The panel provided by Vario is the older style panel with individual instruments (not a glass cockpit), so I am trying to get it to match the older style colour scheme.

I also managed to find some nicely curved GRP that will make a front's piece to go forward from the instrument pod to the nose. It curves down perfectly over the front, and I have added two grilled access holes to it as well.

The instrument panel has now been fitted permanently to the centre console, and it is all being filled and sanded ready for painting. The main panel will be black, the top will be white, and the centre console grey, as per the prototype.

I have also been working on the seats, which I have to say are quite messy to build, but they are coming along fine, and should be finished in a couple of days, ready for painting and finishing.

One pilots seat after the first "rough" pass with filler to seal and pad the gaps. I hope to do the seats with black outside and light grey seat pads as  most prototypes seem to use that colour for the seating.

October 15, 2009

I managed to get around to drilling out the access holes in the vertical and horizontal tail surfaces ready for the navigation lights.  I then fed the lights and wiring thru the horizontal stabilizer and out of the vertical fins, so now we have a RED LED sticking out of the left, and a GREEN LED sticking out of the right ends (taped over to ensure they didn't get any over spray over them) and then applied 2 coats of lacquer to both sides of the horizontal stabilizer.  

Now I need to cut a reasonably large access hole in the top of the boom where the horizontal stabilizer is mounted so that I can find a home for the electronic control PCB that is fitted immediately before the light leads separate.  I am hoping to be able to mount that unit inside the tail section there, and then run the rest of the wiring back along the boom towards the cockpit.

This is the horizontal stabilizer with the wiring already fed through the access hole in the centre and out through the ends, so they are ready to go through the vertical stabilizers and be fitted into the neat plastic LED mountings provided by Vario.
Here is the wiring seen from the top of the horizontal stabilizer/ The stabilizer has been lacquered, and once thoroughly dried, the LED mounting will be fitted where you see the wires coming up from, and the LED pushed up into it as a final fitting.

We have decided to put the while LED on top here, and will place the RED flashing beacon on the underside of the boom opposite this one.

The Vario navigation light set is quite nicely done, but the leads are only just long enough to allow the LED's to be fitted where they should be as per the prototype.  The kit provides 1 RED , 1 GREEN, 1 FLASHING RED (beacon) and 1 WHITE (non strobe) for the rear of the aircraft.  The McDonnell Douglas service manuals that I have managed to get access to show that you have the choice of having either the white LED or the flashing red beacon on top and the other under the horizontal stabilizer.  The RED and GREEN lights are obviously mounted on the left and right sides respectively, centrally on the vertical fin in line with the horizontal stabilizer.

Then there are a further 1 RED and 1 GREEN LED for mounting on the front left and right sides of the main fuselage respectively.

Shown above are one of the vertical fins with the LED mounting hole drilled, plus the cut out that allows you to push the horizontal stabilizer into them very firmly and then fill it with UHU EndFest to fix them on permanently.

The vertical fins are still in a very early base colour coat in case you were wondering !

Finally, I also managed to get all of the top covers in their final coats of yellow, although they still have to be lacquered for the final finish.  You can also see that I have started adding the wire mesh to the various vent apertures. The meshes are NOT going to be painted on this aircraft.

It's all getting there, slow but sure.....

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