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  1. Hi, Via Mr. Google, I found two, AOPA articles...

    Hi,

    Via Mr. Google, I found two, AOPA articles about atrial fibrillation and read the FAA documents. My understanding:

    Wait 3 months after the event - from the FAA directions
    Can not be any...
  2. Well at least we know. I've already blocked it ....

    Well at least we know. I've already blocked it . . . too many 'warning signs'. The worst was seeing a non-EAA domain sourcing the message.

    I understand outsourcing but would suggest this could be...
  3. Forged email from SPAM site, fakes EAA.ORG

    Hi,

    So this afternoon I got an e-mail claiming:


    We think you may be missing some of your EAA membership benefits!

    We want to make sure that you are receiving our emails into your Gmail...
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    I was at "Tractor Supply" yesterday and saw some...

    I was at "Tractor Supply" yesterday and saw some very nice fuel systems. I don't remember the amount they carried but that is probably the approach I'll use.

    The other option, someone mentioned an...
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    Hi David, I just stumbled across your 2010,...

    Hi David,

    I just stumbled across your 2010, EAA propeller workshop charts:
    http://propellerdesignworkshop.com/archives/2010-archive/

    There is a lot of meat to digest including the references....
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    Hi David, There is an 10,000 character limit...

    Hi David,

    There is an 10,000 character limit so I've had to trim your quotes to preserve my reply.

    Two sources including a 1947 NACC report on light aircraft propellers. I've also ordered...
  7. Wanted: IVOprop medium, two-blades and hub

    Hi,

    I'm looking for an IVOprop, two, medium blades, ideally 52" but can go up to 60". Must be medium blade and diameter must be within 52-60". Ground adjustable is perfectly fine but would...
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    Thank you Bob Dingley, The spreadsheet has...

    Thank you Bob Dingley,

    The spreadsheet has helped. I am a great believer in research, study, and test.

    Bob Wilson
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    Thanks David, A forum can often be a good...

    Thanks David,

    A forum can often be a good place to find credible references to more detailed resources. To help explain the constraints, N19WT has 150 hours and I am the third owner. So a few...
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    I'm pretty confident in the prop selection...

    I'm pretty confident in the prop selection although I will have to call Ivoprop on Wednesday and get the moment of inertia for both the two-blade and three-blade configuration. "Back of the envelope"...
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    Thanks Frank, Somehow sleeping on the problem...

    Thanks Frank,

    Somehow sleeping on the problem made things a lot clearer:

    1) blade area and profile defines the lift/drag per blade - this is the fundamental force the engine has to overcome....
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    Thanks Frank, I'm still researching propeller...

    Thanks Frank,

    I'm still researching propeller sizing and dynamics. The pitch changes are absolutely necessary, especially at these lower rpms. Also, no problem finding efficiency and other...
  13. Replies
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    6,405

    Surprised by prop efficiency analysis

    Hi,

    Re-engine of N19WT replaces a 60 hp VW, 3,200 rpm, with a 60 hp, Hirth 3502, geared to 2,400 rpm. I've found a flight controllable IVOprop whose moment of inertia fits within the Hirth 3502...
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    Thank you! I'm not interested in selling the...

    Thank you!

    I'm not interested in selling the plans as much as having a ready, machine readable, backup. But 'ready' means being able to read them from any browser. I'm not trying to give it away....
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    Dragonfly, orphan plans?

    Hi,

    Designed and first flown in 1980, the two-place, foam and fiberglass Dragonfly plans were owned and sold by Viking Aircraft. I bought a set in 1996 but had no time to build. Later, Viking was...
  16. Thanks everybody. I checked the FAA records and...

    Thanks everybody. I checked the FAA records and they have nothing either. I've already gotten pretty much all of the details from the newspaper report and other than confirming the landing direction...
  17. Criteria for reporting aircraft accidents to or by the NTSB?

    Hi,

    Last October, an experimental plane that had a new owner crashed at a private airport. The pilot was banged up but no hospitalization. The airframe absorbed the impact but was destroyed.
    ...
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    I bought a 4 oz. tube of Acrifix IR 0192, the UV...

    I bought a 4 oz. tube of Acrifix IR 0192, the UV cured, cement, $19+9 shipping. I figured this would give the strongest, most permanent fix.

    Thanks,
    Bob Wilson
  19. It looks like a ducted fan with airfoil shaped,...

    It looks like a ducted fan with airfoil shaped, stator supports providing counter-torque. Of course there is some loss of air momentum due to the by-product drag from the counter-torque lift....
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    Waking up this morning, I'm reminded of Burt,...

    Waking up this morning, I'm reminded of Burt, Dick, and Jeana and their round the world trip. In the beginning, everyone was a 'Burt' financing, fabricating and testing the voyager. Eventually, Dick...
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    An engineer by training and background, I'm more...

    An engineer by training and background, I'm more interested in perfecting the machine. It is an occupational hazard . . . polishing the musket balls. <grins>

    On a serious note, the 320 hours in my...
  22. Replies
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    THANK YOU! This sounds like just the stuff I...

    THANK YOU! This sounds like just the stuff I need. Bob Wilson
  23. Replies
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    LOL! My plane, N19WT, is conventional geared...

    LOL!

    My plane, N19WT, is conventional geared so the landing lights on the ground would blind anyone on final while trying to taxi to the run-up area and do nothing for taxi-way visibility. So I'm...
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    I would tune in to see a program digging them up....

    I would tune in to see a program digging them up. But I'd be so turned off to see the lawyers arguing over who gets to keep them.

    Bob Wilson
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    Agreed and split, flairings would be a complex...

    Agreed and split, flairings would be a complex build.

    Bob Wilson
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