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    3 Piece Box Spar Wing Modification For Single Seater SSDR

    Tim, same style, with the exception that there is a built up "I" section that bridges the front bolts and the back bolts, that resides in the gap between the spar ends. As to the bushings, same style, but I'm not sure if they are magnesium or aluminum.... Lots of corrosion on them and the bolts...
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    Excess wire best practice?

    Our company standard is to leave enough for three terminal replacements on each end when the wire is routed per blueprint. If there is a connector at the end, there has to be enough slack left to remove or install it, after the third terminal replacement. It’s sorta vague, but covers every...
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    3 Piece Box Spar Wing Modification For Single Seater SSDR

    Ignore the mess in the warehouse, but here's a couple of photos of the spar joint for my Fairchild AT-21. The one photo is of the inboard, lower joint on the left side forward spar, while the second is the outboard forward spar. I don't know if the outboard is an upper or lower section. The...
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    How much to tighten bolts?

    For those that don't know, everyspec.com is one of the best free sites for looking up specifications. They don't have all of them, but do have a considerable library. One thing to remember is that quite a few of the AN/MS specs are being converted to NASM and C specifications. To find a spec...
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    Free-blowing a bulged bubble canopy?

    But the problem is that you asked about blowing a canopy to fit an existing canopy frame...That's a combination process of molding and blowing. Free form is blowing from a flat sheet with no mold at all. A Malcolm style hood is first formed using either vacuum into a concave mold, or drape...
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    Free-blowing a bulged bubble canopy?

    If you need to fit a frame, complete freeform blowing is not the process you want.
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    How much to tighten bolts?

    Depending on - number, 960’s come in .016, .032, .049 and .063” thickness. Not all variations are available for each - number. For example, a -9 comes only in .049” thickness, others only the .016” and .032”. There are so many possible combinations, one needs to reference the specs to select...
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    How much to tighten bolts?

    AN960 and NAS1149 washers are available in various thicknesses, so you have options depending on total material stackups.
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    Thickness of 6061-T6 Wing Ribs

    6061T6 will not easily form ribs, unless you are looking at giant ones....like chord sections in the 6-10 foot range, and bend radii in area of a inch or more. 2024T3 is much easier to form and less prone to cracking during bending, compared to 6061. Any severe forming of 6061 has to be done in...
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    Problems Moving Throttle Quad - Extending Cable and Adding Curves?

    Probably need to talk with the RV-8 guys over on VAF...I don't know the 8 structure at all.
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    Problems Moving Throttle Quad - Extending Cable and Adding Curves?

    Change the throttle lever to an extended and bent style, or an extended grip. That will move your hand more inline with the forearm. Either is much more simple than moving the entire quadrant.
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    Rocket 3 engine?

    Saw somewhere else an estimated shipping weight for the basic motor of around 175 lbs.
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    First applications of composite material in home built or GA aircraft

    Something that revolutionized Duramold, was during the early part of WW2, was the development of dry sheet RF cured adhesives. It was no longer a wet layup process. The entire shape could be laid up and cured in a single cycle. It took around 40-60kW of microwave energy directed thru the mold...
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    First applications of composite material in home built or GA aircraft

    The Fairchild F46 first flew in 1937. The fuselage was Duramold, a wood and plastic composite.
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    Adhesive replacing rivets or bolts

    Huge design and operational philosophy difference between Ingenuity and a manned platform. Ingenuity was designed and built with a life of less than 1 hour....Flight time for it is measured in seconds, not hours. Ingenuity is a whopping 4 pound vehicle vs the stuff I work on that ranges from 13...
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