nlappos

Contributing Member
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About nlappos

Profile Information

  • Gender Male
  • Location Cedar City, UTAH
  • Interests flying, astronomy, reading, family

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nlappos's Activity

  1. nlappos added a post in a topic Belite Chipper Down   

    Later report and an interview with Jim. He said the engine quit at 150 feet on final, and he landed just short of the runway, clipped a fence and flipped over.
     
    http://www.ktuu.com/content/news/Pilot-of-crashed-plane-thanks-Alaskans-for-help-483672651.html
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  2. nlappos added a post in a topic matco TW cam releases   

    I used the 25 degree wings, which matches the rudder rigging on an Avid. 45 will have difficulty releasing otherwise.
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  3. nlappos added a post in a topic What difference does pitch make?   

    Let's look at the propeller as a wing, and recognize that the wing makes lift (thrust) by a combination of angle of attack (pitch) and airspeed (RPM). f the two, the airspeed is more influential, since the lift equation used the velocity squared.
    At 5500 rpm the prop blade tip is moving at 740 feet per second (with a 2.43 reduction box), at 5800 rpm it is at 780 ft/sec. The difference i thrust is about 11%, assuming the engine was producing the same power. But with the engine producing 4 HP more power at 5800, that would make the prop thrust about 15% higher at 5800.
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  4. nlappos added a post in a topic Rotax 670 - 2 hrs TT   

    Single ignition.
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  5. nlappos added a post in a topic An Electronics "Must-Have"   

    Fear not, Mark. Because the item induces a dead short, it is actually either positive or negative ground, your choice!
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  6. nlappos added a post in a topic Removing Hysol   

    From my experience, Hysol is pretty soluble in MEK, as long as you can keep it away from the other stuff in the area.
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  7. nlappos added a post in a topic Can I get some Catalina and amphibian pics pls?   

    Barnstormers has one right now, 24K. I feel like buying it for my wife, as a gift.
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  8. nlappos added a post in a topic An Electronics "Must-Have"   

    Lucas! The Folks who invented darkness.
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  9. nlappos added a post in a topic Slow Glycol Loss - 582 Rotax Kitfox III   

    Radiator cap
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  10. nlappos added a post in a topic Compression numbers ?   

    Just to report to the group, my 582 Blue Head had 119 psi on each cylinder with 160 hours, and the next year had exactly the same reading (119 psi) with about 80 hours more time. These numbers were recorded with an electric starter.
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  11. nlappos added a post in a topic Leaning the carbs for altitude - on the cheap   

    The HACMAN leans the fuel mixture using the same method as the Rotax approved HAC system (which is illustrated in the Rotax parts manual in the accessories section), except the manual mixture valve. It basically tricks the carb bowl pressure to a lower pressure, making the carb deliver less gasoline to the metering valve (functionally the same as having a smaller main jet). I used a HACMAN on my 582 for 3 years, and it always produced clean plugs and high egts, as I flew from 11000 foot legs in Wyoming to sea level long cruises.
    I do think the simple mixing valve and tubing set is not worth $200 and I applaud the guys here who make it cheaper and simpler!
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  12. nlappos added a post in a topic Watch the plane crash   

    Poor trailer
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  13. nlappos added a post in a topic Bad Landing, Failed Landing Gear, Missed Inspection?   

    Progress check: The engine install is complete, with HACMAN installed and cowling cut (and reinforced). Landing gear complete, wings both now spread and bolted, tail reinstalled. Battery and ELT reinstalled.
    To Go: Brake lines install, fill and bleed brake system. Electric fuel pump, Warp Drive Prop. Final overall inspection, Ground runs, Fly!
    I am frustrated that I have a planned trip that starts Saturday for 2 weeks, so I won't get to fly for a few weeks. Darn.
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  14. nlappos added a post in a topic New Rotax 670 Install   

    Thanks! Not yet, Andy. I will use the 90 degree until the 135 arrives, but I have held off installing the spring safeties to last thing. 
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  15. nlappos added a post in a topic New Rotax 670 Install   

    Installation essentially complete, here are some shots. I might fly this next week, lots of performance reports to come.


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