marksires

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Everything posted by marksires

  1. marksires added a post in a topic Backcountry runway project   

    Whatever you do, don't put any rye grass on it.  It grows in clumps and will make it very rough.
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  2. marksires added a post in a topic Kitfox 4 rebuild   

    Ten thousand?  Amateur! 
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  3. marksires added a post in a topic WY kitfox Yamaha build   

    I generally load any pictures I want to post in to Microsoft paint first, resize it, usually to 30%, then save the smaller file as whatever it was with _small on the end (before the period).  The small size posts much better.
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  4. marksires added a post in a topic Shouldn't be in the joke section (Covid activities)   

    Drat, broken picture link (for me at least)
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  5. marksires added a post in a topic Fun Steps   

    Either there's a lot of time between those photos, or someone is really good at puzzles!
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  6. marksires added a post in a topic Flaperon Flaps   

    You are much better off to post the video to youtube, and then just paste a link here.  Youtube has a lot more bandwidth than this site.
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  7. marksires added a post in a topic Going crazy   

    Well, for some of us going crazy is a very short trip!  No reason to cross state lines for me! 
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  8. marksires added a post in a topic Chicken Stuff   

    Purebred hillbilly? Then you forgot scrape it of the road... 
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  9. marksires added a post in a topic Glue for Struts   

    Well, if you paint it first, how well it sticks is entirely dependent on how well the paint sticks, since the glue will only be sticking the fairing to the paint.
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  10. marksires added a post in a topic Parting out all my stuff   

    No worries, I googled 'French maid outfit' and got enough eye bleach to erase the mental image 
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  11. marksires added a post in a topic Parting out all my stuff   

    Great, now I have to get that image out of my mind.
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  12. marksires added a post in a topic Real Pilots   

    Maybe, but I want to live more than 2 weeks personally.  They also didn't have to deal with crosswinds - Aerodromes (big round fields) not airports.
    Quote from Wikipedia:
     One man asked to be moved back to his infantry unit, where "he could be safe." 
     
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  13. marksires added a post in a topic Flew a Legend Cub today   

    Without a doubt the most fun I've ever had flying was in this
     

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  14. marksires added a post in a topic Kitfox 2 $8500 on barnstormers   

    "Fox Flipper" would definitely get more viewers - but they probably would be expecting something else 
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  15. marksires added a post in a topic Horsepower/Torque   

    For airplanes, HP is the best gauge - the engine will spend most of the time working at or near peak HP, so it doesn't matter how it gets there - High RPM/low torque, or Low RPM/High torque.  Low RPM/High torque means you may not need a gearbox, which can have some advantages, but those engines usually weigh more so the advantage is primarily in simplicity.
    If you are pulling train cars, stumps, multiton trailers, or drag racing, torque wins every time.  If you are oval racing, HP is usually the king, unless you don't have enough aero to take the corners at close to full throttle.  Road courses need a balance.
    Mark
     
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  16. marksires added a post in a topic U.S. Military jamming east coast GPS?   

    All the hand ringing about VOR's is irrelevant anyway - any event that takes GPS out of service will likely close all the US airspace to anything except military, police, and air ambulance flights, just like it did after 9/11.
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  17. marksires added a post in a topic U.S. Military jamming east coast GPS?   

    Neither ILS nor VOR's are going away.  There will be fewer VOR's, but the FAA has established a minimum set that will be maintained indefinitely that will enable navigation across the US if GPS is out of service or degraded.
    There won't be any new ILS approaches, they are too expensive to install and maintain compared with an LPV approach.  I also wouldn't be surprised if some smaller airports with limited commercial traffic get decommissioned when they become too expensive to maintain.  But the major airports will continue to have them for the same reason.
    ADF's however, have definitely joined the Dodo bird in history.  A few are still out there, but when they need major maintenance they are decommissioned.  I liked ADF approaches, but time and technology marches on.
    Mark
     
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  18. marksires added a post in a topic U.S. Military jamming east coast GPS?   

    Me too, in Texas, where like Florida, everything looks exactly the same at 2,000ft AGL and above.  But that was 30 years ago, and I've become an addict of the mauve line....
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  19. marksires added a post in a topic U.S. Military jamming east coast GPS?   

    They do this in that spot 2 or 3 times a year.  I'm in the 50 ft ring, and I've never noticed a problem, on the ground or in the air.
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  20. marksires added a post in a topic Getting close for an engine choice   

    They indicate on the page the picture is just and example of the aircraft type, and state that the pictured aircraft is not UL powered.
    They do have a firewall forward package for the Avid.  I priced it a few years ago, and it was around $18,000 as I recall
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  21. marksires added a post in a topic Photo Record of Extended Wing Build   

    There would have to be a LOT of excess resin for that to happen!  The biggest hazard of wet layups is weight.  One of my other (very) long term projects is building a Cozy (Rutan Canard).  Since the entire airplane is moldless layups, even a little excess resin on each layup can add up to a lot of extra weight.  Excessively wet layups mean the part is too heavy, but usable.  Post cure evidence of a dry layup (white spots usually) means you either remake the part if possible, or cut out the dry section and repair it.
     
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  22. marksires added a post in a topic Getting close for an engine choice   

    I have followed UL engines.  They look great, and have good weight/power ratios.  They aren't cheap, but then neither is a 912.  If I was considering a 912, I'd definitely consider the UL engine.
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  23. marksires added a post in a topic Photo Record of Extended Wing Build   

    Dry layups are much worse than overly wet ones.  Overly wet ones are just excessively heavy, but not dangerous.  Overly dry, the glass/carbon layers work independently instead of as a unit and are only as strong as the strongest layer, which in compression is basically zero.
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  24. marksires added a post in a topic Pulse pump   

    Cause it really isn't gravity feed, not enough head pressure for all phases of flight.
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  25. marksires added a post in a topic Getting started/setup for Welding?   

    That only works if the two circuits are on different 'legs' of the incoming service.  Household single phase breaker boxes are designed so that adjacent circuit breakers are on different legs, that's why a 220v breaker covers two positions.  Hooking up to two breakers that are on the same leg will still just result in 110v.  You can't make 440/480v from a household single phase service, I don't care how many breakers you connect.  440/480v generally requires 3 phase commercial service, and that voltage is on each of the 3 legs.
    USA A/C power is 60hz, which it means it oscillates between + the rated voltage and - the rated voltage 60 times per second, so 110v oscillates between +110v and -110v 60 times per second.
    Single Phase household service has two 110 volt (nominal) legs.  The phase on these two legs are 180 degrees out of phase, so when one is at +110v, the other is at -110v, the difference between the two is 220v, and that's how you get 220v in a household single phase service.  Without a transformer, you will never get any more voltage than that.
    Mark
     
     
     
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