Composite-ARF Lightning Build Thread
#251
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.
#253
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From: BORDEAUX, FRANCE
Hello CARF men 


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
Jean-Philippe from France



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

Jean-Philippe from France
#254
Senior Member
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:




regards
Jörg
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:
regards
Jörg
#255
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From: BORDEAUX, FRANCE
Jörg, your lightning looks great..Nice installation too with the Powerbox Royal 
I have the same scheme than you

I am surprised your CG position is 40mm.
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

I have the same scheme than you


I am surprised your CG position is 40mm.
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
#256
Senior Member
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
regards
Jörg
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

regards
Jörg
#257

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From: Dorado, PUERTO RICO (USA)
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
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
#258
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From: BORDEAUX, FRANCE
Hello Osvaldopv,
Good to know you have saved the big bird !! [X(]
Do you have the Behotec landing gear provided by CARF ?
Jean-Philippe
Good to know you have saved the big bird !! [X(]
Do you have the Behotec landing gear provided by CARF ?
Jean-Philippe
#262
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From: BORDEAUX, FRANCE
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...
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...

#263
ORIGINAL: luckyy
has anyone found any trailing link landing gear that works yet for my lightning
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..
#264
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
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
#265
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
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
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.
#267
ORIGINAL: jeanfi
Very nice struts Sandor !!
What is the price ?
Jean Fi
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]
#268
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From: Dublin 15, IRELAND
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.
#269

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From: HarvengH, BELGIUM
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
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
#271
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.
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.
#272
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.
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.
#274
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.
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.


