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Thread: New molded Ritewing Zephyr II

  1. #501
    Cor blimey, guv'nor!
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    Quote Originally Posted by egosession View Post
    why do need to hold the wings together when using uhu por?

    normally u apply uhu por, wait 10 - 20 min and then press the cores together. the glue will stick instandly. i used uhu por alot when scratbuilding depron planes.

    maybe missunderstood something?

    uhu pors strength is that it is a flexibel joint. so not sure if its strong enough.

    You're right, UHU por does remain ever-so flexible/rubbery (a bit like hot-glue), but I've always found it suited many (not all) the foam plane building applications I've used it on well - especially when the bits you're joining are not super-clean and smooth. My experience has been that if you try and rip apart two foam elements which have been adhered with UHU por (and left for 24hr+ to cure), then the foam will give way before the glue does. With regards to having to hold it together, again my personal experience is that although in essence you are right, the adhesive remains malleable enough that the parts are still able to drift slightly apart (especially if large and heavy like two wing cores) for several hours after being stuck together unless held in place, hence for this reason I used CA.
    Last edited by Ian Davidson; 15th December 2011 at 09:57 AM.

  2. #502
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    I've been looking at the following motor to go in my Zeph 2:

    Hyperion ZS 3014-12 / 1132 KV - 750w Max - 126g

    It looks fairly comparable to the A30-10L only lighter and with more power, at least on paper.

  3. #503
    His Royal Sassiness ssassen's Avatar
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    Quote Originally Posted by londonguy View Post
    I've been looking at the following motor to go in my Zeph 2:

    Hyperion ZS 3014-12 / 1132 KV - 750w Max - 126g

    It looks fairly comparable to the A30-10L only lighter and with more power, at least on paper.
    That's what I use on 4S with a 9x6 prop, beats any other motor hands down.
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  4. #504
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    Quote Originally Posted by ssassen View Post
    That's what I use on 4S with a 9x6 prop, beats any other motor hands down.
    Ooh excellent I am a big fan of Hyperion motors so this looks like an easy choice!

  5. #505
    His Royal Sassiness ssassen's Avatar
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    Here's the motor simulation for the Hacker A30-10L-V2:



    And here's the motor simulation for the Hyperion Zs3014-12:



    You'll notice that the efficiency of the Hyperion is close to the optimal efficiency of 90.1% (!) that's a good 7% better than the Hacker, also notice the static thrust is nearly identical for both simulations but as a result of the better efficiency the Hyperion needs 80W less. The overall efficiency, which includes the weight of the battery, motor, ESC, etc., of the Hyperion beats the Hacker by a good 6% and the Hyperion motor is lighter to boot. I'd call that a clear example of a win-win situation.

    Do I need to post analysis of a 1500, 2000 and 2500W setup for the speed junkies too? Take notice that that will be a 6S setup and n00bs better not attempt such a setup, this is not for the faint hearted.
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  6. #506
    No Artificial Sweeteners. kev.au's Avatar
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    wow great info, i'll get that motor also.


    Cheers, Kev.
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  7. #507
    His Royal Sassiness ssassen's Avatar
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    Quote Originally Posted by kev.au View Post
    wow great info ...
    I got plenty of great info, extracting it from me is the problem usually
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  8. #508
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    Thanks for posting those figures Sander.

    From what I have seen the Hyperion is very similar in price to the Hacker. In the UK the Hyperion is £5 extra which for 7% efficiency is money well spent!

  9. #509
    Navigator citi888's Avatar
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    I would like to have Winglets removable.

    Why not to replace existing winglets with carbon winglets ?
    i am looping for strong but very thin velcro do you have an idea ?

  10. #510
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    Quote Originally Posted by citi888 View Post
    I would like to have Winglets removable.

    Why not to replace existing winglets with carbon winglets ?
    i am looping for strong but very thin velcro do you have an idea ?
    Magnets are your friends, or some nylon screws, simple yet effective.
    Purveyor of the FPV secret sauce at ImmersionRC

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