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RE: 40% 260 on a Diet - 1/10/2007 6:15 AM   
260 Man


 

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quote:

ORIGINAL: as722

Is that bondo you used around the vertical fin fairing ?

Albert



No Albert its not bondo, its like mud that you put on drywall, except it the lite stuff. Home Depot sells it..... I'll look up the name later and let you know.....



(Lite Spackle found at Home Depot)

< Message edited by 260 Man -- 1/11/2007 2:51 PM >

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RE: 40% 260 on a Diet - 1/11/2007 1:21 AM   
Matt_McCarty


 

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Status: offline 		This is an awsome build....keep us posted!

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RE: 40% 260 on a Diet - 1/12/2007 4:20 PM   
Desertrat



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Status: offline 		Hey George, do you have any more pictures of what you guys did to lighten up the wings and stabs? What did you use to pattern out the drill holes on the stabs?

Roger

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RE: 40% 260 on a Diet - 1/13/2007 10:22 AM   
260 Man


 

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Status: offline 		Roger,

The wings have not been done as of yet. The stabs pattern were drawn (laid up) on the foam and then cut (drilled) out. There was no pre defined pattern...



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RE: 40% 260 on a Diet - 1/13/2007 10:24 AM   
260 Man


 

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Status: offline 		8 lbs 7 oz as she sits in this photo....


Cowl
Canopy
Landing Gear (Main and Tail)

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RE: 40% 260 on a Diet - 1/14/2007 9:55 AM   
260 Man


 

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Status: offline 		DA 100 installation tonight.......... Notice the weight of the bolts and the 2.5 deg right thrust in the mount...

Needless to say the aluminum bolts were used to mount the engine....



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RE: 40% 260 on a Diet - 1/14/2007 8:22 PM   
gbrod


 

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Status: offline 		This is a learning experience for me, great work, keep us informed.
My Carden 260 is at 39.3 lbs and it flyes like a dream with a DA 150.

Happy flying
George

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RE: 40% 260 on a Diet - 1/14/2007 10:43 PM   
as722


 

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Status: offline 		260 man,

If it doesn't balance and or doesn't have enough power with the 100 will it be strong enough for a 150 ?

Thanks
Albert

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RE: 40% 260 on a Diet - 1/14/2007 11:30 PM   
sailing1


 

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Status: offline 		260 Man,
Could you tell me where to pick up the aluminum mounting bolts.
Thanks

PS really enjoying the build thread.

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RE: 40% 260 on a Diet - 1/15/2007 3:22 AM   
260 Man


 

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quote:

ORIGINAL: as722

260 man,

If it doesn't balance and or doesn't have enough power with the 100 will it be strong enough for a 150 ?

Thanks
Albert


Yep, but it will fly just fine on the 100..............

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RE: 40% 260 on a Diet - 1/15/2007 3:30 AM   
260 Man


 

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quote:

ORIGINAL: sailing1

260 Man,
Could you tell me where to pick up the aluminum mounting bolts.
Thanks

PS really enjoying the build thread.



Aluminum Fasteners supply Inc

239-643-4551

PN 1448HHB205 (2024-T4)

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RE: 40% 260 on a Diet - 1/15/2007 3:32 AM   
260 Man


 

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Status: offline 		On its wheels with motor in and spinner, prop, ignition, throttle servo all installed it sits at 16 lbs 6.4 oz..........Kavan Tires, Titanium Axles



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RE: 40% 260 on a Diet - 1/15/2007 4:03 AM   
sensei



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Status: offline 		Hello Albert

The C/G as it sits now with power plant, prop and spinner installed is @ 2.5" behind former 2, this means I will probably be placing some of the radio gear behind the C/G to get it balanced.

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RE: 40% 260 on a Diet - 1/15/2007 5:27 AM   
Desertrat



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quote:

ORIGINAL: 260 Man

Roger,

The wings have not been done as of yet. The stabs pattern were drawn (laid up) on the foam and then cut (drilled) out. There was no pre defined pattern...





Thanks George, looking forward to seeing what you guys do with the wings.

Stay warm!

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RE: 40% 260 on a Diet - 1/15/2007 7:12 AM   
RC_Pattern_Flyer



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Status: offline 		I guess what we did not consider is that fat that you would have to mount the 100 urther forward because of a shorer crank.. therefore, more engine weight further forward to help compensate for the small engine.

Good for you guys...

Talk to you later!!


Chuck

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RE: 40% 260 on a Diet - 1/15/2007 1:22 PM   
rcplanefan


 

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Status: offline 		George - do you worry about the aluminum mount bolts galling in the steel nuts? I've been thinking of using titanium bolts for this application basically to eliminate the possibility of them galling (and then not being removable!). Obviously, if I could use aluminum, I would from both a cost and weight standpoint. Thoughts?

Thanks!
Ken


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RE: 40% 260 on a Diet - 1/15/2007 9:50 PM   
sensei



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Status: offline 		Aluminum to aluminum usually locks up unless you use anti seize lubricant generally used in full scale applications. Aluminum to steel with silicone won't pose as a problem.

Bob Sawyer

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RE: 40% 260 on a Diet - 1/16/2007 12:47 AM   
as722


 

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Status: offline 		2.5" behind F-2 is 1/4" in front of the leading edge of the wing. I'm assuming you meant F-3, if so 2.5" behind F-3 would be 1 7/8" in front of the recomended CG which is way nose heavy. If you are balancing 2.5 behind F-2 you'll probably be placing all of the radio gear and the kitchen sink behind of the recomended CG.

Albert
quote:

ORIGINAL: sensei

Hello Albert

The C/G as it sits now with power plant, prop and spinner installed is @ 2.5" behind former 2, this means I will probably be placing some of the radio gear behind the C/G to get it balanced.



< Message edited by as722 -- 1/16/2007 4:44 AM >

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RE: 40% 260 on a Diet - 1/16/2007 6:37 AM   
sensei



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Status: offline 		No, like I said, 2.5" behind F2 where the cowling meets the fuse, also with the 4 servos in the tail and the horizontal stab in place, along with batteries behind the canopy this will be a stroll in the park.

Bob Sawyer

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RE: 40% 260 on a Diet - 1/16/2007 7:12 AM   
AU cary


 

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Status: offline 		this is awsome, i havent been on RCU in a while and this is the kind of stuff that gets my blood running all over again. awsome job man!

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RE: 40% 260 on a Diet - 1/17/2007 12:06 AM   
as722


 

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quote:

ORIGINAL: sensei

No, like I said, 2.5" behind F2 where the cowling meets the fuse, also with the 4 servos in the tail and the horizontal stab in place, along with batteries behind the canopy this will be a stroll in the park.

Bob Sawyer



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RE: 40% 260 on a Diet - 1/17/2007 6:24 AM   
sensei



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Status: offline 		Albert,

The recommended C/G is 11.3" behind F2 and this thing balances at 2.5" behind F2 equaling 8.8" in front of the C/G as it sits Ok, there is 1 LB 12 ozs. in tail feathers, servos and hardware at 60" behind the C/G; moving the C/G aft about 8.00" Because of the project target weight and power plant choice, the aft portion of the fuse had to be fabricated very light or the recommended C/G would have been unattainable without led in the nose; killing the target weight in the first place. Remember that 60" arm is very sensitive to the C/G.

Bob


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RE: 40% 260 on a Diet - 1/17/2007 6:52 PM   
RC_Pattern_Flyer



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Status: offline 		Just a prediction here, i bet we will find out as progress is made, i just dont understand why people cant help to keep the b.s. comments to themselves about ow it wont work or it gonna blow u or whatever. Let the man build, let the man fly, if it fails, you will have your turn to say i told you so...

BUT... if it flys great, makes weight, balances where it should, i bet no one has the balls to admit they were wrong.

Bob, wish it wasnt so cold, i know the garage has got to be freezing right now, not good to build in



To sunny skies and warmer weather, i anticipate the rest of your build.


Chuckles

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RE: 40% 260 on a Diet - 1/17/2007 11:36 PM   
as722


 

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Status: offline 		So are you saying that you put the whole airplane together, wings, stabs etc. and it balances at 2.5" behind F-2 or are you saying that your fuse balances at 2.5" behind F-2 ?

Albert
quote:

ORIGINAL: sensei

Albert,

The recommended C/G is 11.3" behind F2 and this thing balances at 2.5" behind F2 equaling 8.8" in front of the C/G as it sits Ok, there is 1 LB 12 ozs. in tail feathers, servos and hardware at 60" behind the C/G; moving the C/G aft about 8.00" Because of the project target weight and power plant choice, the aft portion of the fuse had to be fabricated very light or the recommended C/G would have been unattainable without led in the nose; killing the target weight in the first place. Remember that 60" arm is very sensitive to the C/G.

Bob




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RE: 40% 260 on a Diet - 1/18/2007 2:37 AM   
RC_Pattern_Flyer



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Status: offline 		oh good grief, will someone send this guy a picture with a big freaking aow as to where it balances and what is attachd to the plane when it blances at this position.

argh.... there are no horzontal stabs in the plane at this point. as he said, look at the picture and you can see what is there. no hrdware or electronic in tail yet. duh.

try www.hookedonphonics.com

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