Marc Zeitlin's Recent Activity

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  1. Marc Zeitlin replied to the thread CriCri Composite.

    Just to clarify, while there are areas of Rutan derivative canards (top of wings, fuselage forward of front seatback, etc.) where there...

    Jun 25, 2019 at 5:40 AM
  2. Marc Zeitlin replied to the thread CriCri Composite.

    Sheesh. You're right - thanks for the correction :-). But in any case, whether the +45 or -45 is on the top, for normal wing skin type...

    Jun 25, 2019 at 12:08 AM
  3. Marc Zeitlin replied to the thread CriCri Composite.

    I've used this material, or at least something extremely similar (knitted +/-45 carbon) on a large aircraft project last year. There is...

    Jun 24, 2019 at 8:51 PM
  4. Marc Zeitlin replied to the thread Should I put a Fuel Drain Here?.

    So the first question is what kind of fuel delivery system are you using on the engine? Carb? Mechanical FI? Electronic FI?...

    Jun 24, 2019 at 5:42 AM
  5. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    Sure you did. You just used different techniques. At MIT, well... let's just say social ineptness was taken to the extreme.

    Jun 23, 2019 at 10:30 PM
  6. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    I don't know where you went to engineering school, but at MIT, there was an engineering course (Mechanical Engineering 2.47) titled...

    Jun 23, 2019 at 10:12 PM
  7. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    Well, I can say that no-one has ever requested it in order to get a ride.

    Jun 23, 2019 at 7:24 PM
  8. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    You make the assumption that I'm not making things up as I go along :-). But thanks. So I know diddly about RV-10's, but a perusal of...

    Jun 23, 2019 at 5:38 PM
  9. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    Once again, not to defend anything going on with this project, but many side-by side canard aircraft need ballast in the nose when...

    Jun 23, 2019 at 4:23 PM
  10. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    Given what I've seen on a few planes, that basically can involve having the DAR/FSDO inspector look at the plane from 100 yards away...

    Jun 23, 2019 at 6:00 AM
  11. Marc Zeitlin replied to the thread CriCri Composite.

    I KNOW that a few folks have been soaking EZ10/87 coupons in 100LL as well as ethanol containing gasoline in sealed containers (and...

    Jun 21, 2019 at 6:06 AM
  12. Marc Zeitlin replied to the thread While we're getting bored with Raptor, here's a new one to critique....

    Elliot and Justin had zero to do with the design or MFG of this aircraft. They're only there to assist with the flight testing. Just had...

    Jun 20, 2019 at 12:57 AM
  13. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    Ramjets are most efficient around Mach 3 and run out of steam due to heating of the intake air from compression around Mach 6.4. In...

    Jun 18, 2019
  14. Marc Zeitlin replied to the thread Raptor Composite Aircraft.

    This certainly has almost nothing to do with the Raptor, but let's assume materials capable of dealing with arbitrarily large...

    Jun 18, 2019
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