Teknosmurf's Davis DA2

Discussion in 'Hangar Flying' started by Voyeurger, Oct 26, 2011.

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  1. Oct 26, 2011 #1

    Voyeurger

    Voyeurger

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    Last edited by a moderator: Nov 1, 2011
  2. Oct 27, 2011 #2

    snaildrake

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    Re: Photos From the Copperstate Fly-In

    But look at what the DA-2 accomplishes on 100hp and 80 sq ft of wing. Like the legendary Tailwind, the DA-2's efficiency is its achievement
     
  3. Oct 27, 2011 #3

    jlknolla

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    Re: Photos From the Copperstate Fly-In

    Form follows function with Leon's designs, a lot like John Thorp - the shape is only what the shape needs to be in order to contain people and powerplant and fuel, AND be easy, light and cheap to build - genius.

    I saw the DA-2 blast off before we took off on Saturday and it was scooting right on out of there - very cool!
     
  4. Oct 27, 2011 #4

    teknosmurf

    teknosmurf

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    Re: Photos From the Copperstate Fly-In

    My Davis definitely attracts a lot of attention. Most people think the design is cool/interesting...regardless of if they like it or not. It is definitely a fun little plane to fly. It would perform a little better if I had a more suitable prop on there (the one I have is a little too short...but it gets the job done!)

    I like it because:
    1) It is unique (with the v-tail and all) and draws a lot of attention, questions, and is a great conversation starter
    2) It does have a very "sporty" feel, even though it is only going about 100mph
    3) It is a piece of cake to work on from a maintenance standpoint
    4) It fits my 6' 210lb frame!
    5) It does all of this while only burning 5 gallons/hour :D

    Thanks again for posting all the pics!
     
  5. Oct 27, 2011 #5

    billyvray

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    Re: Photos From the Copperstate Fly-In

    I would like to suggest you starting a thread on your Davis. There is another thread on here regarding Davis aircraft but I think yours deserves it's own. I've seen the video of it flying and taking off/landing and it appears to perform well. I know I would love to see more videos of it, and pics too.

    I have plans for the DA-2 and the DA-5 and they are pretty simple aircraft, and some of my all-time favorites.

    ~Bill

     
  6. Oct 28, 2011 #6

    teknosmurf

    teknosmurf

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    Re: Photos From the Copperstate Fly-In

    I may just do that Bill. There is starting to be a lot of pictures and videos floating around the internet for N588B. One thing that has kept me from going further is the lack of audio in my videos. I apparently have some grounding ghosts in the audio out of the intercom system that make the recorded audio come out pretty bad. Once I get those ironed out I will get some better videos (with audio) and post everything I have in a common place for others to enjoy. Unfortunately since that is mostly just me playing around it doesn't get as much time as other things, so it may be a little while.

    Another cool thing that will add to that thread will be the smoke system I am getting close to adding. Don't ask me why, I just want to make a nuisance of myself at airshows a little more ;) I have it designed and built...for the last few months...I just need to get it in the plane! That should make the videos even more intersting!
     
  7. Oct 28, 2011 #7

    topspeed100

    topspeed100

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    Re: Photos From the Copperstate Fly-In

    Awesome DA-2...not much aspect ratio but definitely efficient looking machine.

    Flying the Davis DA-2A Homebuilt

    Is it really easy to fly...no fish tailing ?
     
  8. Oct 31, 2011 #8

    teknosmurf

    teknosmurf

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    Re: Photos From the Copperstate Fly-In

    Nope...no fistailing, no "Bonanza wobble" nothing like that. The only thing is that with the short wings, it drops like a rock when you cut power, and stalls tend to be a little more abrubt than in a 172 (and tend to break to the right, even if coordinated). But as longs as you expect those things, it's nothing to be concerned about...just something to be ready for the first time you try them.

    BTW, I agree with Bud's assesment.
     
  9. Oct 31, 2011 #9

    bmcj

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    Re: Photos From the Copperstate Fly-In

    But if you maintain proper (best L/D) speed, isn't the overall glide angle still decent?

    Bruce :)

    PS - I think this part of the discussion deserves to be broken out into its own thread.
     
    Last edited: Oct 31, 2011
  10. Nov 1, 2011 #10

    teknosmurf

    teknosmurf

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    Re: Photos From the Copperstate Fly-In

    How does one go about pulling out part of a thread and creating a new one? Do we have to cut and paste everything individually?
     
  11. Nov 1, 2011 #11

    bmcj

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    Re: Photos From the Copperstate Fly-In

    You can start your own with a reference in the old one, or ask a moderator to break it out. Easiest way to get a moderator's attention is with the little triangle with the exclamation point in it, but most of the moderators also read these posts in a timely manner.
     
  12. Nov 2, 2011 #12

    teknosmurf

    teknosmurf

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    Wow...ask and ye shall recieve! Thanks Auto!

    Define decent...yes, it will glide like any other plane. Someone once told me that the old story (and I probably have it wrong, but I will give it a shot anyway) about keeping a goos and a duck in the plane at all times. The goose is if you get lost in the muck...you can throw the goose out and he will guide you. If you have an engine out, toss out the duck and follow it all the way to the ground...just be careful because you will likely arrive before the duck!

    But more seriously. If I pull the power abeam the numbers, and start making a tight 180 turn to the runway I *might* make it without adding power.
     
  13. Nov 2, 2011 #13

    topspeed100

    topspeed100

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    Re: Photos From the Copperstate Fly-In

    Orion...anyone...why is it stable like that DA-2 ?

    Are the elevons all moving ?
     
  14. Nov 3, 2011 #14

    teknosmurf

    teknosmurf

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    Not sure what you are asking, but yes, the 2 elevons are mounted on hinges at the base and the whole thing moves.
     
  15. Nov 3, 2011 #15

    teknosmurf

    teknosmurf

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    For those of you interested, I could not figure out how to save this picture, but someone took it of my daughter and I flying in to Copperstate last year...notice if you look really close you can see the pig-tails at the bottom of the window :D

    All sizes | Davis DA-2A N588B | Flickr - Photo Sharing!
     
  16. Nov 3, 2011 #16

    teknosmurf

    teknosmurf

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    Here are some more pictures from last years Copperstate that somone nabbed of the plane while it was at our booth. Please note that I no longer have the composit prop (went wood instead...I hated that IVO prop with a passion). The wheel pants are gone (it took half an hour per wheel to check the tire pressure!) and the control grips are now replaced with gaming joysticks so I get a little bit cooler look/feel (and more nifty buttons to hook up to things later).

    540059.jpg 540058.jpg 540055.jpg
     
  17. Nov 3, 2011 #17

    teknosmurf

    teknosmurf

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    Here are a couple of youtube videos I made in the Davis. Sorry, but neither have good audio...I am working on that problem, and will have new videos posted as soon as I get some quality issues worked out:

    This video was with one of my mother-in-laws friends that came over from Russia. Both her and her husband have always wanted to go for rides in small aircraft, but because of the restrictions over there, have never been. This was a real (and rare) treat for them! I even printed them color sectionals of the route we took, and drew on it while we flew. They ended up taking it back to Russia and framing those sloppily written sectionals.
    Lilya's First Flight - YouTube

    On this video I was testing the reality of being able to fly from my home airport (Pegasus airpark 5AZ3) to Pheonix Sky Harbor (KPHX) as a daily commute. I think I may have to do that as a regular thing starting very soon...it won't save me any time, but the cool factor with the folks at work is amazing!
    5AZ3 to KPHX Daily Commute Low Res.wmv - YouTube
     
  18. Nov 3, 2011 #18

    topspeed100

    topspeed100

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    I meant it has no stabilizers but all moving elevons ?
     
  19. Nov 3, 2011 #19

    teknosmurf

    teknosmurf

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    Correct.
     
  20. Nov 5, 2011 #20

    Jan Carlsson

    Jan Carlsson

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    Teknosmurf,

    how much speed did you lose when taking off the wheel pants?
    what propeller do you have now? size?

    Jan
    JC Propeller Design
     

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