Friday, November 09, 2007

09 November 2007. Have achieved a lot today with engineering attachment with SIA. Completed drilling the strut beam , having read the manual several times.Since no photo taking is allowed, i could only take the post drill photo. I pass drilled with 1/4" bit all holes common to the forward and aft strut beam attach angle. Then, i inserted the spacers in between with the relevant nuts and bolts. with the strut attach arm pinned as well and a 3/8" cleco on one of the larger hole, i used a " U" drill bit to drill the other end of the hole while being clamped securely.All this using the vertical drill press on site.Special thanx to Mr Chow from the sheetmetal department for sourcing a 0.373" reamer for me ..making my project smooth sailing. Other thanx goes to Mr Tan,the workshop manager and the rest of the technicians who came to help .
The rest of the evening was spent to repair my chipped Sportsman door. Thanx Ronnie and Mr. Quek for their unselffish assistance and excellent repair lesson. The photo shows the bolt and nut loosely tighened only coz need to clarifiy abt the positioning of the washers from Glasair Aviation.
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Cleco together short of riveting coz manual indicates difficulty in riveting using longer then usual rivet which may be easier done with a vise and back riveting(something i am not usual too and don't have). Dad!!, may i borrow your vise...
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Same procedure for the other set of assembly.
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Patience does it..
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after drilling..close up view with clecoes in place.
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Next..the spacer is clecoed onto the assembly for drilling.
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Done.
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As in the manual, the upper and lower flap bellcrank arm are clecoed and clamped to the flap bellcrank pulley before drilling begin.
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Seen here with my newly purchased vertical drill press from Dubai ( abt S$30) ..doing the crucial precise drilling called for in the flap bellcrank assembly.
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There you have it...
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Moving on..i riveted the remaining aileron bellcrank brackets.
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Close up view of the riveted hinge assemblies.
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Thumbs up for a job well done. Its all in a day's work. Now as i anticipate the arrival of my 2nd shipment....Stay tune.
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short of riveting the aileron hinge arm since i have yet to purchase Loctite threadlocker..
Riveting the aileron hinge assembly...
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Almost complete but not quite.
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Root rib clamped vertically for easier riveting.
Next, riveting the right wing root rib.
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Tadah!!!
Proof of me doing the riveting...
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Riveting the aileron bellcrank assembly.
After finishing riveting the brackets..Note: I have decided to position my air compressor in KL permanently coz the majority of riveting in the future involves big parts like the flaps and wings stationed in KL plus to be more neighbourhood friendly back in Singapore. Only minor cutting and drilling w/ less noise will be done in Singapore during weekdays only from 10 am to 5pm excluding all holidays , not that there is any complaints but just my guilt for making a bit of noise so far for almost a year.
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Back here at my dad's factory in KL in anticipation of my overdue 2nd shipment any time soon,i used the precious 3 off days to finish up riveting the flap bellcrank bracket assembly.
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After back from corrosion proofing plus cutting at SIA Engineering sheetmetal workshop. Shown here with me are the angle brackets earlier marked out on the stock, rudder stop plate short of the required 15 degress bend on its side, rudder pedal and also delta wings.Using the cutter there was a piece of cake compared to my usual hours of cutting with my humble Dremel kit.
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Before corrosion proofing..
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Drawing out the inboard pulley brackets on the stock provided for cutting.
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