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Minden Trailer Manual?
Bought a Libelle with a Minden trailer. Yesterday was our first
attempt to disasemble and place the bird in the trailer. Had a few problems, mostly based on ignorance . . . anyway, does anyone have a source for a manual for Minden trailers or some information on how to use one? I think we figured it out finally, but would like to see something official to be sure we are doing it right. |
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Minden Trailer Manual?
On Oct 11, 11:39*am, Dave White wrote:
Bought a Libelle with a Minden trailer. *Yesterday was our first attempt to disasemble and place the bird in the trailer. *Had a few problems, mostly based on ignorance . . . anyway, does anyone have a source for a manual for Minden trailers or some information on how to use one? *I think we figured it out finally, but would like to see something official to be sure we are doing it right. I had/used one for 15 years but never saw a manual for one. I have no idea how many variations of fittings there were but my wing root fittings were set up to use the single man rig system. That design had a weakness. The wing root fittings ran on one track on the side wall and one track on the floor. With age the floor sagged where the fuselage dolly sat and changed the geometry between the side and floor rails. This allowed the root fitting front wheels to jump out of the tracks which is very inconvenient. The problem is compounded because the solo rig design required the root fitting to extend beyond the trailer tracks which means the root weight is not all between the wheels and tends to make the front wheels of the root fitting rise when the wing is pulled out of the trailer. (the fitting design allows the wing to be pulled out, swung round nearly 90 deg to the trailer, then rotated flat, all before the spar is removed from the trailer fitting) If your wing root fittings use the same arrangement suggest after you rig you run each root fitting up and down the track and make sure it cannot separate. Holding the wing tips as high as possible without hitting the end of the trailer helps to stop the wheels jumping out. Careful adjustment of the wheel offsets helps. I ended up resorting to drilling out the track rivets and shimming the tracks away from the floor in the sag area The proper fix would probably have been to eliminate the floor sag. I never had, or used, the solo rig wing support so can't give you any advice on that. Andy |
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Minden Trailer Manual?
I had a Minden Fab trailer with a Grob 104. It was a one-man rigging
set-up. For the Grob, it was a very good one-man rigging system. I had no problems with floor sag or the dollies jumping the tracks. However, the system depends upon having very stable wing stands, more like saw horses than the typical three legged type in use. You would pull the fuse out first. You then pulled your wing out to the very end of the track. There was a very secure stop to the dolly and I never had the dolly jump either the track or run off the end of the track. Once the wing was fully out of the trailer you kept it in the upright position and walked it out, pivoting on the rotating spar support until the wing tip was about where it would be when the wing is installed in the fuse. The wing was then rotated flat and laid on the wing support. My wing supports were four legged sawhorse type units that had carpet on the top. Then I would walk back to the trailer and loosen the wing nuts that secured the spar to the dolly, pull the spar out of the dolly mount, and walk the spar to the fuse. Then you just slid the spar into the fuse. The system depended on the wing stands being made the correct height. The system depended on the wings stands being stable enough to allow you to slide the wing back and forth on the stand without the stand tipping or moving. The you repeat the process with the other wing. The final adjustments to align the spar ends was done by raising and lowering the fuse rather than the more conventional manner or raising and lowering the now popular oneman rigging wing stands. Good luck. Oh yah...the builders still exist in Minden. Tom Stowers and his brother Billie. They don't make trailers anymore but they built the darn things. Guy |
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