1/32 partial stripdown Short Wright Flyer scratchbuild

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1 month 3 weeks ago #471 by Stevef
Evening All,

I have had a checquered time recently, having been away twice in two weeks visiting family during holidays. In addition I found that the booms were not properly aligned after I have put the top wing in place, so I had to take it off and reset it - this time thing are properly aligned so I have been able to continue with the build.

I finished the elevators by adding the ribs from 20 x 30 strip which had been filed to shape. The ribs were added to the spars and the leading and trailing edge pieces were glued to the tips of the ribs with liquid cement.

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The wooden frame of the elevators were painted the same colour as the remainder of the wood frame that would have been fabric covered on the real aircraft. I also made the rudders: one is the complete unit with frame and fabric covering (on one side only as per the original), and the other just the frame. These too have been painted.

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The control for the wing warping consisted of a lever which operated a rod: the tail end of the rod moved from side to side, causing tension on a control wire. I made the rod from plastic rod with a hole drilled to allow the control wire to pass through. The front end of the rod was inserted into a hole in the control lever and the assembly superglued into place on the airframe. The warping wire guides on the upper and lower wings were cut from 15 thou card and superglued into place once the warping wires had been threaded through them.

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The propellors were driven via chains which were channeled and protected in tubes. The chains passed over drives at the rear of the engine  and wheels on the ends of the propellor shafts. The propellor shafts were supported by triangular structures mounted between the wings.

I made the triangular supports and propellor drive shafts from brass rod which was soldered over a paper template:

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These were primed and painted before they were mounted between the wings. The chain covers were also made from brass rod which was soldered: these too were primed and painted. The drive wheels on the ends of the propellor shafts were made from 20 thou scrap card.

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1 month 3 weeks ago #472 by Stevef
The shaft supports were superglued to the wings and the drive shafts inserted and glued to the propellor shafts. Adding the longer chain drive from the engine to the prop shaft on the port (left side) required an unusual jig even by my Heath-Robinson standards. The chains around the drive wheels were made from stretched sprue.

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Next I will start to add the features surrounding the pilot: there was no cockpit as such as (s)he sat on a seat mounted on a frame on the leading edge of the lower wing.

Thanks for looking.

Stevef.

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1 month 1 day ago - 1 month 1 day ago #473 by Stevef
Evening All,

The radiator consisted of a series of vertical pipes mounted on the leading edge of the lower wing with pipes connected to the engine. I had drilled a hole in the lower wing a put a pin in the bottom of the radiator to make a secure joint. The pipes were made from 20 thou rod and connected the engine to the radiator. There was a small battery placed on the lower wing on the port (left) side of the engine: a small cable connected the battery to the engine:

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The seat was CA'd to a frame made from 20 x 30 thou strip and the latter cemented to the ribs and solid part of the lower wing. A fuel tank was mounted between the inner interplane struts - the tank was made from plastic tube with card at the ends to block the hole in the tube. A water tank was also mounted between the struts and hung beneath one of the bars which held the fuel tank:

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A control bar which actuated the rudders extended from the control lever on the right side of the pilot - this was connected to a cross bar on the lower rear boom which in turn was connected to the rudders by control wires. The bar from the control lever and cross bar were made from 20 x 30 thou plastic strip:

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The rudders on the original machine consisted of a two wooden frames with a single sheet of fabric on the outer surfaces, joined with cross rods. I modelled the starboard (right) rudder with the fabric and the port (left) as just the frame. The fabric on the right side was represented with 20 thou plastic card and the frames made with 10 x 20 thou strip. 25 thou plastic rod was used to join the rudders and the whole rigged with monofilament thread:

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When the rudders were finished I mounted them between the ends of the central booms and connected them to the control wires from the bar on the lower wing:

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I have still to decide what to do next - either rig the wings and tie off some of the annoying threads or add the rear elevator and rig the rear booms: with several fragile parts sticking out and waiting to be knocked off or damaged I will need to consider carefuly how to proceed.

Thanks for looking.

Stevef.
Last edit: 1 month 1 day ago by Stevef.

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1 week 1 day ago #477 by Stevef
Evening All,

I am in the process of building two models at the same time - one for a GB on another site, and this one, hence progress has been slowed. However there is something to report.

The supports for the forward skids and horns on which the front elevator was mounted were made from 40 x 60 thou strip. These were CA'd at the bottom where they are fixed to the brass bar skids, and cemented at the top where they are joined to plastic:

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I have also added the clock which hung from one of the bracing wires near the pilot's head, but this is not visible in the photos. The control rod for the rear elevator ran from the left lever to the rear where it was connected to a horizontal bar: another control rod ran from the horizontal bar to the rear elevator. When the pilot moved the left lever forwards or rearwards the elevators at the front and rear would operate together. The rod from the left lever to the horizontal bar was fixed in place followed by the rear elevator. The elevator was supported by vertical struts - these were made from wood which had been filled with grain filler. A hole was drilled and enlarged on the fabric covered part of the elevator, and a gap cut in the spar on the uncovered side:

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The control rod from the elevator to the horizontal bar at the rear of the lower wing has been inserted but is not yet fixed in position:

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The side of the boom will be rigged when the control rod is permanently fixed.

I have also put on to the lower exposed wing section the tip bar and trailing edge "wire" - the latter is stretched sprue:

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I am hoping that the next post for this project will be the last one - light is clearly visible at the end of the tunnel!

Thanks for looking.

Stevef.

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