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  1. #126

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    RE: ESM LA-7 From VQ Warbirds

    Kirt,

    I used a special battery box that mounted on the firewall and the motor mounted to that. This got the CG too far forward and I had to add weight to the tail even with a servo in the tail for the retractable tail wheel. It's still a nice setup and allows you to change the batteries without removal of the wing. If you don't mind that a standard electric motor mount like from Hyperion or Hanger 9 would work fine with the batteries just inside the firewall inside the plane should put the CG about perfect.


    Jeff
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    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  2. #127
    carlosemiliov's Avatar
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    RE: ESM LA-7 From VQ Warbirds

    hey jmohn which tailwheel retract did you us on it
    thanks
    Just fly and relax,,,,
    Honduras, Central America

  3. #128

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    RE: ESM LA-7 From VQ Warbirds

    I think it was a Dubro mechanical retract with an HS 225 servo for the retract part. Works great and adds some weight in the back where I needed it anyway. I couldn't fit a Robart air retract in the space so this was my second choice.


    Jeff
    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  4. #129
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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: jmohn

    Kirt,

    I used a special battery box that mounted on the firewall and the motor mounted to that. This got the CG too far forward and I had to add weight to the tail even with a servo in the tail for the retractable tail wheel. It's still a nice setup and allows you to change the batteries without removal of the wing. If you don't mind that a standard electric motor mount like from Hyperion or Hanger 9 would work fine with the batteries just inside the firewall inside the plane should put the CG about perfect.


    Jeff
    Hi Jeff,

    Thanks for the info and photos. I'll be using Thunder Power 40C 6500 mAh packs. The 10S packs weigh 4 pouds and the 12S packs weigh 4.75 pounds. Iget 5 minute flights using these packs on my high-powered EDF jets that draw 125 amps. I suspect Iwill get at least 8 minute flight times with the low amp draw of the E-Flite 160 or the AXI 5345.

    Kirk

  5. #130
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    RE: ESM LA-7 From VQ Warbirds

    hi kirk, if you don't mind who did you buy it from?....karl
    "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."
    -- Thomas Jefferson

  6. #131

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    RE: ESM LA-7 From VQ Warbirds

    Kirt,

    That's what I was planning to, but don't have the larger packs yet. If you are going that route I would suggest sticking the batteries behind the firewall so you don't have to add too much weight to the tail. If you stick them out front like me you will have to add about 1 lb. of weight in the tail

    Just stick it where the fuel tank was going and you may have to add a little in the nose, but probably much less than you would otherwise. Get the ESC, receiver pack in front of the firewall and you may be fine with no weight. Let us know how it goes. I may have to change my setup when I get the larger packs



    Jeff
    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  7. #132
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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: karl hibbs

    hi kirk, if you don't mind who did you buy it from?....karl
    Hi Karl,

    It's the one you had. I had to beg him to sell it to me. I needed an IMAA legal plane to fly at Monroe and wasn't interested in an aerobat airframe.

    Kirk

  8. #133
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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: jmohn

    Kirt,

    That's what I was planning to, but don't have the larger packs yet. If you are going that route I would suggest sticking the batteries behind the firewall so you don't have to add too much weight to the tail. If you stick them out front like me you will have to add about 1 lb. of weight in the tail

    Just stick it where the fuel tank was going and you may have to add a little in the nose, but probably much less than you would otherwise. Get the ESC, receiver pack in front of the firewall and you may be fine with no weight. Let us know how it goes. I may have to change my setup when I get the larger packs



    Jeff
    Hi Jeff,

    Thanks for the info. Looking forward to seeing a flight report on yours.

    Kirk

  9. #134

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    RE: ESM LA-7 From VQ Warbirds

    I hope to do the maiden again this Sunday. Cross your fingers



    Jeff
    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  10. #135
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    RE: ESM LA-7 From VQ Warbirds

    we will be waiting for ur reports
    have fun
    Just fly and relax,,,,
    Honduras, Central America

  11. #136
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    RE: ESM LA-7 From VQ Warbirds

    Kirk, i talked to John smith and he is ready to fly his with an evolution....karl
    "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."
    -- Thomas Jefferson

  12. #137
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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: carlosemiliov

    we will be waiting for ur reports
    have fun
    hey guys i got my bird and the engine
    here are some pictures any advise on the build would be appreciate
    thnaks
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    Just fly and relax,,,,
    Honduras, Central America

  13. #138

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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: carlosemiliov


    ORIGINAL: carlosemiliov

    we will be waiting for ur reports
    have fun
    hey guys i got my bird and the engine
    here are some pictures any advise on the build would be appreciate
    thnaks
    Nearly ready for the maiden of my LA 7. I have the E-Flight 160 installed on 3 inch aluminum pylons and cut a hole in the firewall so the 10S pack can fit behind the firewall and still is flush with the firewall face. Since I am running A123 batteries, I plan to charge them in the plane so I will cut a relatively small hatch in the bottom of the cowl for access to the power leads and balancing tap. One thing I did find; the elevator cables did not crimp down securely. I found that despite using a crimping tool, the brass sleeves are too brittle and cracked. I have replaced them with copper (softer) and will put a dab of solder on for good measure.

    I would like to hear from John about his second flight. I am surprised about his report of needing full down elevator to fly. That sounds like the horizontal stabilizer incidence may be wrong. If so, that is a major design/manufacturing mistake and would require major surgery to correct. Let's hope this is not the case!!

  14. #139

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    RE: ESM LA-7 From VQ Warbirds

    Here's a couple photos of the plane on the ground before take off. Trying to get some in the air, but my photographer says they don't look good. I am hoping that they are good enough to see that attitude of the plane to see if it's a stab issue.

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    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  15. #140
    carlosemiliov's Avatar
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    RE: ESM LA-7 From VQ Warbirds

    hey jmohn what engine did you place on your plane nice pics
    Just fly and relax,,,,
    Honduras, Central America

  16. #141

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    RE: ESM LA-7 From VQ Warbirds

    I have an Eflite Power 160 motor in the plane with a dummy radial engine photograph that I mounted to some 8 mm foam and hot glued it inside the cowl. It looks pretty real from a distance.



    Jeff
    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  17. #142
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    RE: ESM LA-7 From VQ Warbirds

    Jeff mentioned it on bottom of page 2 . He used a Dubro retractable tail wheel..You may want to try this one its all self conatined and all you have to do is run airlines back to it. Its pretty lightweight and i have used it on planes up to 46 lbs...

    Its one from B&D. Its the same one Yellow A/C uses. It has a small cylinder built into the retract...

    http://bdretracts.com/products.htm#pneumatic_retracts

    B&D0013 Nose Gear Forward Nose Only $39.95


    Ty

    FOCKEWULF37

    Why did you say to use the nose gear B&D0013 and not the tail gear B&D0007 or B&D0008 at $30.95 or $35.95.

  18. #143

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    RE: ESM LA-7 From VQ Warbirds

    Well, spring break was last week and so I managed to put my LA-7, together. I am using a RCGF 62 motor and the overall weight of 18lbs. The only mod I did was use two elevator servos and of course it needed a larger fuel tank 32oz, so I added another servo plate just behind the existing tray. Looking for a spinner for it but I might just use whatever is on my spare box. Hope to maiden it this week.

    Happy Flying!

  19. #144

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    RE: ESM LA-7 From VQ Warbirds

    No updates for my LA7 as the weather is not cooporating out here [:@]

    I hope to get a bunch of flights in on Friday and Saturday this week. I added some down trust in the motor as I suspect that was most of the problem with the plane wanting to climb while adding power. I checked horizontal stab and wing incidence and they were good.

    Can't wait love this plane!


    Jeff
    Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen.

    Winston Churchill

  20. #145

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    RE: ESM LA-7 From VQ Warbirds

    Hey Ty
    got one of your cockpit kits for my LA-7.
    Very nice work. It painted up very realistically and the videos were GREAT
    Whats the status on the scale SPINNERS and will the be available in RED?
    also any plans for a 3 blade prop and spinner option.
    Thanks

  21. #146

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    RE: ESM LA-7 From VQ Warbirds

    David,
    Thanks for the comments on the cockpit.
    The spinners went out to Tomas on wednesday and he should have them the first of the week. They turned out really nice.


    ty
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    tysplanes.com
    food for thought:\'\'\'\'If the enemy is in range, so are you..\'\'\'\'\'\'Tracers work both ways.\'\'\'\'

  22. #147

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    RE: ESM LA-7 From VQ Warbirds

    Spinner looks great, will have to order mine if maiden goes well this Saturday. Thanks for getting them made Ty.

    Any ideas on how well the CG placement is? I am about .25" forward of what is called for on the manual.
    Happy Flying!

  23. #148

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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: LA7flier


    ORIGINAL: carlosemiliov


    ORIGINAL: carlosemiliov

    we will be waiting for ur reports
    have fun
    hey guys i got my bird and the engine
    here are some pictures any advise on the build would be appreciate
    thnaks
    Nearly ready for the maiden of my LA 7. I have the E-Flight 160 installed on 3 inch aluminum pylons and cut a hole in the firewall so the 10S pack can fit behind the firewall and still is flush with the firewall face. Since I am running A123 batteries, I plan to charge them in the plane so I will cut a relatively small hatch in the bottom of the cowl for access to the power leads and balancing tap. One thing I did find; the elevator cables did not crimp down securely. I found that despite using a crimping tool, the brass sleeves are too brittle and cracked. I have replaced them with copper (softer) and will put a dab of solder on for good measure.

    I would like to hear from John about his second flight. I am surprised about his report of needing full down elevator to fly. That sounds like the horizontal stabilizer incidence may be wrong. If so, that is a major design/manufacturing mistake and would require major surgery to correct. Let's hope this is not the case!!
    I just bench ran my power setup on my LA 7. I ran WOT to get an idea of how much time I have. I got 3 minutes but only about 1000 watts. I may have to move up to Lipo's to get 2000 watts which is what I planned the power system to supply. Plan on ordering a new Progressive RC 1010 charger to handle 10 cell charges unless someone uses something better (which I would love to hear about)

  24. #149

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    RE: ESM LA-7 From VQ Warbirds

    Is ESMthe same as KMP?
    Will this plane fit a G62 in the cowl without sticking out?Looks great...

  25. #150

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    RE: ESM LA-7 From VQ Warbirds


    ORIGINAL: jugman2

    Is ESMΒ*the same as KMP?
    Will this plane fit a G62 in the cowl without sticking out?Β*Β*Looks great...
    No ESM is also Troy Built Models...I think KMP is bit bigger....doubt very much that a G62 will fit in the cowl without cutting it up. Many are struggling to get a decent sized engine into the cowl without cutting anything. That is one reason I went electric


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