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About GlennM

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    Senior Crew Member

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    Orlando, Florida
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  1. I believe the design requirements for most powered aircraft certifications require any flutter issues to be outside of the never exceed speed by a certain margin. Not sure on gliders.
  2. I am.not sure if Lockwood still has anyone for composites. Mine was done by a composites expert from Flight Design out of Germany. Where do you keep your plane? I am based at X21 Arthur Dunn in Titusville.
  3. I guess if you can afford to buy one, you can afford to fix whatever is missed during an inspection.
  4. GlennM


    My Dad was a crew chief on B-47s. My understanding is the water injection is for more mass flow in the engine, which yields more thrust. Power plants use water injection on their gas turbines for more power output, when needed. I use Swift 94UL in my plane. I get it delivered to the house and have a tank in the back of the truck.
  5. Once again, a rubber hose is not a rubber band. Rubber hoses used for oil are synthetic rubber and have a positive coefficient of expansion. Source: https://promo.parker.com/promotionsite/oring-ehandbook/us/en/ehome/Coefficient-of-Thermal-Expansion
  6. Roger has changed lots of props. He should know the value.
  7. I don't see how. It has a positive coefficient of thermal expansion. A rubber hose is not a rubber band.
  8. So the pump sucks the oil from the tank and through the cooler? You learn something new every day...
  9. Yes. I think these are the correct ones. (set) right panel D120.dxf (set) Left Side Panel D-100 three gauge.dxf (set) center 496.dwg
  10. I am sorry it did not work for you. I did not realize the difference, either. If you are lucky, you get get someone with a blue/white light or laser scanner and create a CAD file from the point cloud. However, the @Madhatter's suggestion of manually making one might be easier if you don't have any rapid prototyping places near you.
  11. Grounding the EMS case to the main ground behind the panel solved years of issues I had with the oil temperature and CHTs. I would recommend looking for the ground wire or installing one because it worked so completely to fix my problems.
  12. Yes. The laser etching portion is on a different layer than the panel dimensions. I had the 6061T6 sheet anodized flat black on both sides, then laser etched to bare metal. This way, I hope, I can wipe it without starting corrosion or removing the color. Anodizing should last much longer than paint or powder coating. Should... Despite working with Arian at FDUSA on the dimensions, it was still a little off on the upper left and upper middle panels, as manufactured. A little ovalizing of holes and they fit, so not far off. The lower center I sent you was perfect with no fitting necessary.
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