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Lightning Build

Old 04-25-2012, 06:36 PM
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Default RE: Lightning Build

Tim,

You are welcome. You can use Profili or Compufoil to print out wing ribs. I am using Profili Pro version for a future project and it works very well. It has some nice features, such as the ability to adjust the trailing edge thickness, that come in handy for pattern plane design.

Jeff
Old 05-03-2012, 06:20 AM
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Default RE: Lightning Build

I have a evolution 26 gas motor will that be a good choice. What does this plane come in at in the weight. Thanks RoadRunner
Old 05-03-2012, 06:27 AM
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Default RE: Lightning Build

Weight shouldnt be a problem with this plane. I'm sure Jeff will chime in with the exact number, but I believe last year at the NATS he was around 4650. The plane is ultralight and flies very well,

Arch
Old 05-03-2012, 08:56 PM
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Default RE: Lightning Build

RoadRunner,

It would be possible to use a gas engine, but the are a few changes that would have to be made. The Lightning was designed to use an electric motor, so there is no cowl. Additionally, since the electric motor has much less vibration, the airframe was designed lighter. With a gas motor, the front end of the fuselage should be strengthened. These modifications will add weight, but it should be posible to stay under 11 pounds. The official weight of mine at the 2011 Nats was 4612 grams.

Jeff
Old 05-04-2012, 04:32 AM
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Default RE: Lightning Build

Under 11 lbs - EZ.

I have built stuff using ZDZ40 -well under 11 lbs
The BIG problem in using gassers is was and will still be the power pulses inherant in the rpm band used

Good balsa construction is the best forsoaking up th pulses (motor mounts will NOT fix this basic condition-just soften the condition some)
So I am doing - again a design using balsa /spruce -
I do have carbon fibre but basics will be wood.
Old 06-04-2012, 06:03 AM
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Default RE: Lightning Build

My Lightning is done! Should be flying it this week. I will post pictures as soon as possible. Very excited to get this thing in the air. Since I have Dave Snow's Dynamic wings and stabs,, I am dubbing this plane "Lightning Dynamic"

More to come soon!
Old 06-04-2012, 06:21 AM
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Default RE: Lightning Build

Congrats; Bring it up to the pattern contest in Boise, ID this coming weekend. We would love to see it.

[link]http://www.nsrca.us/d8/2012/TreasureValleyPatternContest.pdf[/link]

http://www.nsrca.us/d8/2012/Treasure...ernContest.pdf
Old 06-04-2012, 06:29 AM
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Default RE: Lightning Build

Thats the plan . If I cant get out to fly it a few times beforehand, I'll have to fly Jesky's 2M Osiris prototype. Sad,, I know...
Old 06-04-2012, 06:36 AM
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Default RE: Lightning Build

Is Andrew and Darrin coming up? I haven't heard from them and hate to pester.
Old 06-04-2012, 07:05 AM
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Default RE: Lightning Build

Yes. Darin and Andrew and I along with about 6 others as I understand it. We are all really looking forward to it!
Old 06-04-2012, 07:06 AM
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Default RE: Lightning Build

Maybe I need to plan on two flight lines....
Old 06-04-2012, 07:30 AM
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Default RE: Lightning Build

Maybe!! One for the Utah contigent and one for everybody else!!
Old 06-04-2012, 05:04 PM
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Default RE: Lightning Build

Congratulations on completing your Lightning. I am looking forward to pictures and a flight report!
Old 06-07-2012, 09:14 AM
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Default RE: Lightning Build



Hmm,

I cant get the pictures to show up Upload finishes fine. Just . No.. Pictures!
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Old 06-07-2012, 09:15 AM
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Whoops! Lets try this again


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Old 06-07-2012, 09:23 AM
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Default RE: Lightning Build

Once more with bigger size!

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Old 06-07-2012, 09:29 AM
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Default RE: Lightning Build

All pictures taken with my IPhone and my one good eye.

Plane flys well. Moving the CG around right now. Does everything it should. My finish is ok,,, all paint.. I had started on a much more involved finish and ran into issues, I sanded it all back down and did this finish in a couple days with waterbase AutoAir and Chromaclear. Using the inexpensive A60 7S motor, DX18 radio, Spektrum servos throughout. Flying a contest this weekend with it. I have been flying the 2M Osiris for awhile now and Ireally feel comfortable with it. I will still fly this one, however, as I have been working on it since October and I'm pretty psyched!
Old 06-07-2012, 11:06 AM
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Default RE: Lightning Build

Excellent Job! I bet it shows up in the air good...
Old 06-07-2012, 11:16 AM
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Default RE: Lightning Build

Shows up pretty well. The fuselage size is a fair bit smaller than the Big O. It appears a little bit smaller to me. I'm sure it will go away once Ifly it a bunch more and pick my spot in the sky more appropriately

Excited to fly my first contest in 20 some odd years. The last one I flew was in Vegas and I was flying one of my new Ariel's Ihad just started kitting. This is going to be fun!
Old 06-07-2012, 11:19 AM
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Default RE: Lightning Build

Looks great going to order one today for my fathers day gift. The wife just dosnt know that is what they are getting me. Steve
Old 06-07-2012, 11:20 AM
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Wives are great that way. Mine has ok'ed or bought me so much stuff she doesnt even know about.
Old 06-07-2012, 04:03 PM
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Default RE: Lightning Build

gdaddy, what is different about the wings??

Looks great, Im sure you will be pleased with it. It will be interesting to see how you think it differs from the Osiris

Old 06-07-2012, 05:04 PM
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Default RE: Lightning Build

gdaddy,
How do you like the A60 7S V2 motor? What prop, bats and ESC are you running? I have a new A60 7S in my Pentathlon but need new bats to really tell what the motor will do.

Thanks,
maustin
Old 06-09-2012, 07:11 AM
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Default RE: Lightning Build

WOW, your Lightning Dynamic looks fantastic! It is the first one I have seen, other than my own, and you made it look great. What a satisfying feeling to break ground with an airplane you have spent 6 to 9 months of your time on.

Good luck in your first contest back. I have had to take a few extended breaks from competition and everytime I realize I have missed it more than I thought.

Congratulations!


Jeff
Old 06-09-2012, 02:38 PM
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Default RE: Lightning Build

Nice job mate. Looking great!

Cheers,
Jason.

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