Pietenpol-List: landing gear issues
Posted: Sun Sep 24, 2006 3:06 pm
Original Posted By: "Lars Hulgreen"
Hey guys,here's my $ .02 (and worth every penny!)The strap had nothing to do with the landing gear, as has been rightly observed. It was extra insurance to tie the lift strut fittings together.The bowing occurs, as has also been observed, due to the negative forces on the struts during hard landings, which wants to "roll" the lower strut fitting around the longeron a bit. It ALSO is pulled down, by the springs, or bungees on the cub type gear at exactly the same time, so you've got a double whamy here.The Jenny gear is like an upside down braced pylon and doesn't do any of this, it actually resists the downward push on that fitting from the struts, and doesn't pull like the cub gear does.Douwe________________________________________________________________________________
Hey guys,here's my $ .02 (and worth every penny!)The strap had nothing to do with the landing gear, as has been rightly observed. It was extra insurance to tie the lift strut fittings together.The bowing occurs, as has also been observed, due to the negative forces on the struts during hard landings, which wants to "roll" the lower strut fitting around the longeron a bit. It ALSO is pulled down, by the springs, or bungees on the cub type gear at exactly the same time, so you've got a double whamy here.The Jenny gear is like an upside down braced pylon and doesn't do any of this, it actually resists the downward push on that fitting from the struts, and doesn't pull like the cub gear does.Douwe________________________________________________________________________________