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Yorkman

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Posts posted by Yorkman

    Whatever happened to..........

    in All Things Model Flying

    Posted

    My Wik Salto desperately needs a new canopy....bought second hand in about,ooh '88, had to renew the solarfilm on one wing panel due to barbed wire damage,otherwise has been maintenance free for 20 years, has a mechanical mixer as so perfectly described by Eric earlier in this thread for rudder/elevator and is impossible to get back on the floor if there is any lift at all..

    Pusher prop

    in General Electric Flight Chat

    Posted

    Louis-Terry is under the same misunderstanding that putting the prop on backwards reverses the direction it works-IT DOESN'T!!!

    Take a propellor and put it on the table in front of you-decide which way it needs to rotate to 'lift off'.

    Now turn it over.....you'll see it needs to rotate in the same direction!

    It isn't a 'pusher' prop you need, per se, it's a 'left hand' one!

    Pusher prop

    in General Electric Flight Chat

    Posted

    I'm sure that when you had a couple of Merlins or Allisons or some such twirling 16' diameter Hamilton Standards then cancelling out the precessional gyro effect made life a lot easier (any ex Mossie/Hornet /P38/Beaufighter pilots out there to verify?) on takeoff...but I think it's more a case of style over substance with a little electric model....

    Greenair Designs Mosquito

    in Scale and Semi-Scale kits

    Posted

    thanks Chris-just had another look-yes, like the old Phantom, always strikes me as one of the last 'hairy chested' jet fighters/bombers like the Lightning and Buccaneer-no namby-pamby electronics helping those guys around!

    Glad Greenair are still around-the Mossie is looking like this year's birthday pressie to myself!

    Multi-blade propellers for electric

    in General Electric Flight Chat

    Posted

    with the way prices have fallen i'm sure it would be pretty inexpensive to fit it out with an adequate power train-my problem is that a) i don't have the space, and b) to be perfectly truthful, i don't have the interest-i have the york which is enough of a challenge to keep serviceable (my dad expects his scale models to only undergo 'scale' stresses!), transport and fly...and modelling can only have a small proportion of my spare time (didn't have any for the last two years)-so afraid the dak will sit for a while longer!

    Span? not sure exactly, aound the 5.5-6' mark.

    Multi-blade propellers for electric

    in General Electric Flight Chat

    Posted

    Well , the Dak was built from kit (can't remember what manufacturer off hand)-designed for twin 40s I think, or twin OS wankels (which are currently gathering lots of dust, if anyone's interested)-was built and rebuilt and converted to electric by carrying out major surgery-dividing the fuse and lightening all the formers, stuff like that...then fitted with twin speed 700s, and it sat, and sat (my dad doesn't fly-he builds to pass the time) until i finally managed to collect it from wales and prepare it for flight...

    And sadly, have had a couple of abortive attempts, and once again it sits....

    Two main problems-it is woefully underpowered (no surprise i hear!) and, more awkwardly, the U/C isn't strong enough-dad built a beautifully engineered retracting sprung U/C out of brass tube and filed ally knuckles....which looks great and works fine on the bench, but just isn't man enough for real-world loadings (and it's a right handful on the ground, let alone in the air!) so it is retired awaitng time and attention...actually Danny-if you're interested??

    As for a Mossie-yes please! Seen my thread about the greenair designs one? Think that may be my birthday present to myself!

    ps-dad's props also succumbed to the 'difficult' ground-handling properties

    GMAC Electric Fun Fly

    in General Electric Flight Chat

    Posted

    would love to come and join the WW2 line up, too far for me this weekend, as girlfriend is arriving friday, then picking my kids up saturday for the next nine days....

    hope the weather is kind for you-and the rest of us-would be nice to get out in my other weather dependent money pit-the boat!

    Spectrum dx61 battery issue

    in Spektrum/JR

    Posted

    Well, I bought four niMh from Lidl for diddley squat, modified an old charger from the shed to get the polarity right, and have a perfectly serviceable rechargeable Tx. And a pack of 4 AA drycells in my flight bag should I find myself at the field without enough charge.

    Why modify it?

    UBECs and lipo savers

    in General Electric Flight Chat

    Posted

    hi Timbo-my 'squabbling' comment should have had a smiley appended to it, sorry! Not taking any of this too seriously (except the info of course!)-as far as I'm concerned, it's all light-hearted, unless someone makes it very clear it isn't!

    As for the watts calculation-no problem with that, just with having any idea how many I've actually got....

    Ah well-the York hauls itself off the ground and trundles around the sky on half throttle, so I guess whatever I do have is 'adequate' as Rolls-Royce used to say!

    UBECs and lipo savers

    in General Electric Flight Chat

    Posted

    You are correct Frank, that's exactly what they do.

    My 'problem' here, why I started this thread, is that using a UBEC renders the lipo saver inoperative, so an alternative method of lipo saving is needed.

    'True, but the guide of 80 plus watt per pound isn't a bad guide.'

    Which is fine, if you can work it out.....York is 6.5lbs, so 520 watts.....errr....

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