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    • M
      If yu want to check your engine cooling on a cold day, simply add the temperature difference between the actual OAT and the OAT on a hot...
    • M
      Map replied to the thread What do you think about "e-soaring"?.
      The lift would need to be exceptionally strong for a helicopter to climb in it, power off. They have such high sink rates.
    • M
      Map replied to the thread Lower rpm 2180.
      I have a 64" x 36" prop (2 blade) on my 2276 cc VW in my motorglider. This gives me about 2700 rpm on takeoff, 2900-3000 rpm in climb...
    • M
      Map replied to the thread Aileron add-ons - What is this?.
      I agree with what has been written above. The hinge moment of a control surface is easily changed with small changes to the trailing...
    • M
      Map replied to the thread Reno. 14-18 Sept. Who's going?.
      I was at the races during the week. Very sad about the crash yesterday. I wrote a summary of what I saw Tuesday/Wednesday, with...
    • M
      I think your engine is just fine. An oil cooler with a NACA inlet on the side of the cowling does not work well on any airplane...
    • M
      Map replied to the thread Oshkosh 2022.
      I am making some changes to the engine and installation. It will still be some time before I fly it again. I will also try using Decalin...
    • M
      Map replied to the thread Oshkosh 2022.
      I made it there this year and met Billski in person. I wrote a trip report about flying my motorglider on this trip, it is on my web...
    • M
      My engine is VW 2276 cc and it cools fairly well. It is mainly a matter of blowing enough air over the heads and cylinders. But it also...
    • M
      Map replied to the thread Building a VW Aero-Engine.
      I made the trip with the long wings, as you can see in some pictures. I have installed two spark plug steel threaded inserts when they...
    • M
      Map replied to the thread Building a VW Aero-Engine.
      I have made the trip from California to Oshkosh in my VW powered motorglider and can share some real world experiences of operating this...
    • M
      Map replied to the thread Rotax 912 question.
      Here are pictures of the Pulsar cabin heat concept. The "radiator" sketch shows were the radiator is, the valve is in the firewall near...
      • Radiator1.jpg
      • cabvalve.JPG
      • Toebrak2.JPG
    • M
      Map replied to the thread Rotax 912 question.
      Pulsars with the Rotax 912 have very simple and very effective cabin heat: part of the hot air behind the coolant radiator is routed...
    • M
      Map replied to the thread Lycoming combustion air actual IAT?.
      I have one data point from measurements I did on a Columbia 400, with a TCM TSIO-550C. It was during a full throttle climb. At lower...
    • M
      Map replied to the thread Baffles.
      I plan on being at OSH and give a forum on engine cooling, 8:30 am Tuesday, stage 8. I may have a couple of books there.
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