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      Bob H replied to the thread Ineffective Oil Cooler on O-200.
      I don't have answers for the O-200 situation but do have a surprise heat exchanger improvement story. The Rotax 912 engine on a Pulsar...
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      Bob H replied to the thread Boat fiberglass on aircraft?.
      Aircraft grade glass has fiber bundles (tow) of controlled size woven into a cloth with relatively the same number of tows in both...
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      Bob H replied to the thread Places to manufacture kits.
      Making me chuckle as I have lived/worked in S. Cal for 62 yrs and worked at Douglas Aircraft for many years and flew into Flabob this...
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      Bob H replied to the thread Human Powered Flight.
      A normal metal bike chain was too heavy for the Albatross so the team came up with a novel idea that used a Kevlar thread and a series...
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      Bob H replied to the thread Human Powered Flight.
      When Bryan Allen was pedaling across the Channel, the support crews had boats on the water to pick him up should he lose his ability to...
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      Bob H replied to the thread Human Powered Flight.
      I made a stackup of 8HS woven graphite/carbon with 0/90 and +-45 orientation. I forgot the final thickness , around 1/4". It's called...
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      Bob H replied to the thread Human Powered Flight.
      Back in 1977, I worked composites at Douglas Aircraft in Long Beach, CA and McReady's guys working on the Gossamer Condor and Albatross...
      • 2020-12-31 Gossamer Albatross Gear 00001.jpg
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      Bob H replied to the thread MOGAS in Fiberglass Fuel Tanks.
      The Pulsar community has been concerned about ethanol affecting glass tanks for years. I have been flying mine for 18 yrs and we can not...
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      Bob H replied to the thread T-88 Epoxy Failure.
      Examining the failed joint adherends, you will probably get failure in the wood and not in the epoxy. This is good as you can never get...
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      Bob H replied to the thread T-88 Epoxy Failure.
      Mix ratios of epoxies are sensitive to no tighter than 5% of recommended, so whether you are mixing 100/83 or 100/86 would not make any...
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      I just joined your forum. Have built a Pulsar XP and a Zenith 701 for myself and worked on RV-12 and a Just Highlander and many other...
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