mm4440's Recent Activity

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  1. mm4440 replied to the thread Raptor Composite Aircraft.

    Hi, to get glider like L/D takes a glider like planform. The Voyager had that kind of L/D. The EZ planform is not one you would chose...

    Jun 16, 2019 at 8:02 PM
  2. mm4440 replied to the thread 2 stroke alternative ?.

    His anyone worked with the newish Honda 690s? weights?

    Jun 13, 2019 at 12:14 AM
  3. mm4440 replied to the thread 2 stroke alternative ?.

    Jun 13, 2019 at 12:13 AM
  4. mm4440 liked jbiplane's post in the thread 2 stroke alternative ?.

    They have 750cc version and possible a bit increase stroke. So it wil make 1600 cc 4 cylinder engine. [IMG] Very interesting looks...

    Jun 13, 2019 at 12:12 AM
  5. mm4440 replied to the thread 2 stroke alternative ?.

    Hi, magnesium straight 8s in the original.

    Jun 13, 2019 at 12:07 AM
  6. mm4440 replied to the thread Torsional Vibration on a long shaft?.

    Hi, Two truck radiators in series under engine, not total loss cooling.

    Jun 13, 2019 at 12:00 AM
  7. mm4440 replied to the thread Celera 500L (was: More Vaporware).

    The Voyager engines were developed for one of the Boeing projects.

    Jun 12, 2019 at 8:16 AM
  8. mm4440 replied to the thread Celera 500L (was: More Vaporware).

    Hi, I think Boeing has done more than one high altitude piston engined programs. It seem to take 3 stage turbocharging and many...

    Jun 12, 2019 at 8:13 AM
  9. mm4440 replied to the thread Evans Waterless coolant in V6/V8s?.

    Evans recommends high coolant flow to make up for lower heat transport. The air side is the usual problem. With the ability to safely...

    Jun 12, 2019 at 12:54 AM
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