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-   -   Composite-ARF Lightning Build Thread (https://www.rcuniverse.com/forum/rc-jets-120/3540268-composite-arf-lightning-build-thread.html)

sc0tt 05-17-2008 08:24 PM

RE: Composite-ARF Lightning Build Thread
 
1 Attachment(s)
Here's mine - Note the balsa block glued in at midspan of the actuator rod. Some of us have experienced the door pulling overcenter when opening, thus preventing closure. The block prevents this condition.

Buzz Kill 05-17-2008 09:25 PM

RE: Composite-ARF Lightning Build Thread
 
Thanks Gentlemen!

jeanfi 05-18-2008 06:41 AM

RE: Composite-ARF Lightning Build Thread
 
Hello CARF men :D:D:D

I own a Lightning and I would like to know the best mix between flaps and elevator for the two positions of flaps).

I plan to use a Gbooster P160 on it.

Thanks a lot:D

Jean-Philippe from France :)

Inconel 05-19-2008 12:30 AM

RE: Composite-ARF Lightning Build Thread
 
Hello Jean-Phillip,

i used for Flap pos.1 elevator neutral, and for flap pos 2 elevator up 2-3mm. On both positions i have programmed a smooth delay. CG was by 40mm.

Some pics from my Lightning:

http://www.rc-network.de/forum/attac...6&d=1209845071

http://www.rc-network.de/forum/attac...6&d=1209845664

http://www.rc-network.de/forum/attac...7&d=1209845664

http://www.rc-network.de/forum/attac...5&d=1209845664

regards
Jörg

jeanfi 05-19-2008 02:59 PM

RE: Composite-ARF Lightning Build Thread
 
Jörg, your lightning looks great..Nice installation too with the Powerbox Royal ;)
I have the same scheme than you :D:D

I am surprised your CG position is 40mm. :eek:Some people fly at 50mm !! Isn't it too much "nose heavy" at 40mm ?

And what are your flaps position (position 1 and 2) ??

Thanks
Jean-Philippe

Inconel 05-19-2008 04:31 PM

RE: Composite-ARF Lightning Build Thread
 
Hi Jean-Philippe,

sorry, a little mistake. CG was by 45mm from the middle of the wing tube, not 40mm. Maiden flight was with CG 50mm, but i think this was a little too nose heavy.

Flap position are like the manual, works great. Start with pos 1. Landing with pos.2, you think someone will hold your plane when you get full flaps :D

regards

Jörg


osvaldopv 05-20-2008 07:02 AM

RE: Composite-ARF Lightning Build Thread
 
Hi !
My maiden flyght was on Sunday, and I almost crash the plane because all the controls were to sensitive, and on takeoff the main tires came off the rim,
are you guys are using the stock main wheels and brakes ? how I can stop the tires coming out from the rim?

I glued them for the maiden, but they came out .

Any help ?

Thanks

Osvaldo

jeanfi 05-20-2008 02:13 PM

RE: Composite-ARF Lightning Build Thread
 
Hello Osvaldopv,

Good to know you have saved the big bird !! [X(]
Do you have the Behotec landing gear provided by CARF ?

Jean-Philippe

jeanfi 05-20-2008 02:44 PM

RE: Composite-ARF Lightning Build Thread
 
Thanks Jörg...

Are you glad of your power box RRS ??

Jean-Philippe

Inconel 05-20-2008 02:57 PM

RE: Composite-ARF Lightning Build Thread
 
very glad - perfekt system :D

osvaldopv 05-21-2008 08:29 AM

RE: Composite-ARF Lightning Build Thread
 
Hello jeanfi !

Yes I have the Behotec landing gear .

jeanfi 05-21-2008 03:09 PM

RE: Composite-ARF Lightning Build Thread
 
Osvaldopv,

It will be good that some Lighting guys help you (us) to understand why your tire came off the rim !!
I have ordered the Behotec landing gear too....and will receive it in a few days...:D


digitech 05-21-2008 03:43 PM

RE: Composite-ARF Lightning Build Thread
 
1 Attachment(s)


ORIGINAL: luckyy

has anyone found any trailing link landing gear that works yet for my lightning



we just done doing them
this is also for all who asked me about springs and different setups
after trying 3 different oleo,s this is the final one..



pfact 05-21-2008 05:24 PM

RE: Composite-ARF Lightning Build Thread
 
Sandor,

Will your trailing link struts fit into the new Ultra-Lightning wing?

We are waiting for our Ultra-Lightning to arrive - we probably won't see it before late Summer since they are not yet done with the new mold for the modified fuse. Several of the old lightning's at our field used P-160's and found that the increased weight and residual thrust were too much for the Behotec brakes. Can you recommend a system with more power than the Behotec's offered by C-ARF? We plan to use a P-160SX.

Phil



digitech 05-22-2008 01:29 AM

RE: Composite-ARF Lightning Build Thread
 


ORIGINAL: pfact

Sandor,

Will your trailing link struts fit into the new Ultra-Lightning wing?

We are waiting for our Ultra-Lightning to arrive - we probably won't see it before late Summer since they are not yet done with the new mold for the modified fuse. Several of the old lightning's at our field used P-160's and found that the increased weight and residual thrust were too much for the Behotec brakes. Can you recommend a system with more power than the Behotec's offered by C-ARF? We plan to use a P-160SX.

Phil



our new oleo,s do fit the ultra lightning wing , infact the first set went to someone who owns a new UL.

yes you need a larger brake system for more brake power
i suggest you use the jet-1A wheels for that
they have 110mm wheels and large brake setups.
and they use diskbrake instead of the pushout o-rings
they do fit our lightning struts also.

jeanfi 05-22-2008 01:45 PM

RE: Composite-ARF Lightning Build Thread
 
Very nice struts Sandor !!

What is the price ?

Jean Fi

digitech 05-23-2008 02:46 AM

RE: Composite-ARF Lightning Build Thread
 
1 Attachment(s)

ORIGINAL: jeanfi

Very nice struts Sandor !!

What is the price ?

Jean Fi

have a look on our website , i promisse you wont fall over ;)
also i am getting some emails concerning all the changes needed to be done.
this is a rumour spread by competition , but not to worry
here is a small manual so you can see what work is needed!.
[link=http://www.digitech-turbines.com/manuals/lt-0802.pdf]C-ARF Lightning (ultra) 08[/link]

roo 06-04-2008 12:32 PM

RE: Composite-ARF Lightning Build Thread
 
Regarding balancing the Lightning without the wings in place, and with the wing tube underneath, I assume the CG is established with the Nose gear retracted ? . The manual omits mention of the nose gear position when balancing. Thanks. Paul.

JPZ 06-04-2008 12:56 PM

RE: Composite-ARF Lightning Build Thread
 
1 Attachment(s)
JP

Je vole avec le mien depuis un an et c'est super, J'utilise le dual receiver WEATRONIC

Vous pouvez me contacter

JP ZARDINI
ZNLINE
CARF REP SALE

jeanfi 06-04-2008 03:34 PM

RE: Composite-ARF Lightning Build Thread
 
Super je vous appelle demain ;-)


sc0tt 06-07-2008 10:51 AM

RE: Composite-ARF Lightning Build Thread
 
Jörg (Inconel),

Could you please post close up pics of your landing gear?
What retract, struts, wheels & brakes are you using?

Thanks...Scott

Paul (roo) - Balance with the nose gear extended.

sc0tt 06-07-2008 11:07 AM

RE: Composite-ARF Lightning Build Thread
 
1 Attachment(s)
For those using the stock Behotec main struts...
The lower section is hollow and has a weak area - see red circle below. The strut can bend here & cause binding, preventing it from sliding in & out smoothly. Inserting a piece of 6mm dowel stock eliminates this weak point. I've been using this mod for the past couple months off rough grass, including a few hard landings. I have not had any problems or issues.

Buzz Kill 06-27-2008 09:47 PM

RE: Composite-ARF Lightning Build Thread
 
Guys,
What Straight style nose gear strut are you using to replace the stock one? The front of the jet sits low, this causes extended runway for takeoff.

Thanks,
Buzz

sc0tt 06-28-2008 04:14 PM

RE: Composite-ARF Lightning Build Thread
 
Keep the trailing link style on the nose. I use the longer 162mm Behotec strut # NL162 and 3.5" (89mm) tire # R4-V. I got these parts thru http://altecarerc.com/

The longer strut has a weak strut link collar & can break, so just swap the thicker one over from your stock strut. The larger wheel uses the same rim, so that's an easy change. You may even be able to use the 176mm strut, but you would need to check your clearances. The longer nose strut greatly improves rotation & lift off. It was one of the best mods I did & will use it when I get the Ultra Lightning.






Buzz Kill 07-05-2008 05:05 PM

RE: Composite-ARF Lightning Build Thread
 
Can you show me a pic of your nose strut installed using the forward geardoor? I am curious how you have your strut opening the gear door that opens forward.

Thanks,
Buzz


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