Ultra Lightning at last!
#77
Very very nice Didier,
Is this real carbon you used to mount the Royal and the pump or just sticker?
I think also it would be wise if you installed a ball valve after or before the pump. There is a thread going on here (http://www.rcuniverse.com/forum/m_86...tm.htm#8607640) about the possible postitions of valves and how important they are.
Please keep us updated with your maiden flight.
Tassos
Is this real carbon you used to mount the Royal and the pump or just sticker?
I think also it would be wise if you installed a ball valve after or before the pump. There is a thread going on here (http://www.rcuniverse.com/forum/m_86...tm.htm#8607640) about the possible postitions of valves and how important they are.
Please keep us updated with your maiden flight.
Tassos
#78
Senior Member
Hey Tassos.
The carbon look-a-like plate is actually a plastic plate with a carbon print on it.
Sandor of Digitech sells this stuff.
The "fueling" line to the UAT is 4mm, from there the fuel line to the main tanks is 6mm.
Together with a low voltage operating "fueling" pump the "fueling" pressure will be almost zero.
Even if the fuel valves of the Jetcat leaks, I can't image the fuel go's through the not operating pump.
Ofcourse it never hurts to install a ball valve after the pump.
Will let you know about the maiden! [8D]
The carbon look-a-like plate is actually a plastic plate with a carbon print on it.
Sandor of Digitech sells this stuff.
The "fueling" line to the UAT is 4mm, from there the fuel line to the main tanks is 6mm.
Together with a low voltage operating "fueling" pump the "fueling" pressure will be almost zero.
Even if the fuel valves of the Jetcat leaks, I can't image the fuel go's through the not operating pump.
Ofcourse it never hurts to install a ball valve after the pump.
Will let you know about the maiden! [8D]
#80
Senior Member
ORIGINAL: quist
On my UL the CG is perfect and I had 2 2200 mah Limag and 1 3800 li mag(ecu) mounted in the nose with no extra lead to balance. It is balanced on the wing tube without the wings on.
On my UL the CG is perfect and I had 2 2200 mah Limag and 1 3800 li mag(ecu) mounted in the nose with no extra lead to balance. It is balanced on the wing tube without the wings on.
Is this with the canopy installed, full hoppertank/UAT and main tanks empty?
Thanks!!
#81
Senior Member
Finally the Ultra Lightning maiden last week.
WOW, what a great airplane is this.
So smooth, very very precise and very very very neutal in all 3 axis.
First I had some lead in the nose but found it a little to nose heavy.
The CG is further behind the recommended C.G. composite-arf gave.
This results in almost no mixers for knife edge needed. (4% down elevator, 0% ailerons)
It makes also the landings easier to to perform.
With a dry weight of 31,5 lbs, it can fly so slow and still very controllable.
The performance of the JETCAT P160SX (126 K-rpm) together with the JETCAT titanium thrust tube is very good.
I must say I'm very happy with the airplane.
Hope to get some video soon.
WOW, what a great airplane is this.

So smooth, very very precise and very very very neutal in all 3 axis.
First I had some lead in the nose but found it a little to nose heavy.
The CG is further behind the recommended C.G. composite-arf gave.
This results in almost no mixers for knife edge needed. (4% down elevator, 0% ailerons)
It makes also the landings easier to to perform.
With a dry weight of 31,5 lbs, it can fly so slow and still very controllable.
The performance of the JETCAT P160SX (126 K-rpm) together with the JETCAT titanium thrust tube is very good.
I must say I'm very happy with the airplane.
Hope to get some video soon.
#82

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All
I see that the website shows the UL upgrade wings sets are discounted pretty heavily, and that when they are sold out then that's it.
questions.
I have a classic Lightning Navy scheme. i know that the replacement UL wings will fit the "Classic" Lightning fuse.
Its SUPPOSED to be a plug in fit. is it in fact, and ACTUAL plug in fit?
What are the differences between the UL fuse and the "Classic" fuse?
Is it true that the UL wings on the Classic Fuse will change the CG so that you don't have to put weigh up front??
I have not started the build for the Classic yet, so i am contemplating the UL style wings. not sure if they are worth 1k but they look nicer.
thanks for answers in advance.
I see that the website shows the UL upgrade wings sets are discounted pretty heavily, and that when they are sold out then that's it.
questions.
I have a classic Lightning Navy scheme. i know that the replacement UL wings will fit the "Classic" Lightning fuse.
Its SUPPOSED to be a plug in fit. is it in fact, and ACTUAL plug in fit?
What are the differences between the UL fuse and the "Classic" fuse?
Is it true that the UL wings on the Classic Fuse will change the CG so that you don't have to put weigh up front??
I have not started the build for the Classic yet, so i am contemplating the UL style wings. not sure if they are worth 1k but they look nicer.
thanks for answers in advance.
#83
To answer your questions, here's what I know & some of what I have been told....
The new wings do not have the fwd or aft carbon pins installed. You decide the incidence you want. The complete new Ultra kit wings have +1 to +1.5 deg to help take-off & landing. My classic took a while to rotate on take-off, so I'd copy the Ultra's incidence.
New fuse has bigger inlets for bigger turbines. Although guys have run P180/200's in the classic fuse with no issues. The new vertical fin is rounded to match the new wings. Total length with new stab is 107" - classic is 102"
The new wings are swept farther back thus shifting the cg & eliminating all or most of the nose weight needed with the classic. Plus the new wingspan is 90" - classic is 81.1".
The wings also have wider gear doors for the new trailing struts. The new trailing struts are offset aft. The wider doors actually give you more options for gear. Only straight trailing struts fit the classic wings.
If I were in your situation, I'd definitely get the upgrade kit. Pretty cheap for a new set of wings & stab on a jet this size.
I actually just sold my Lightning - had I known the new wings/stab were going on sale I'd have probably kept it.
It's a great airplane & I'll most likely get another one........
The new wings do not have the fwd or aft carbon pins installed. You decide the incidence you want. The complete new Ultra kit wings have +1 to +1.5 deg to help take-off & landing. My classic took a while to rotate on take-off, so I'd copy the Ultra's incidence.
New fuse has bigger inlets for bigger turbines. Although guys have run P180/200's in the classic fuse with no issues. The new vertical fin is rounded to match the new wings. Total length with new stab is 107" - classic is 102"
The new wings are swept farther back thus shifting the cg & eliminating all or most of the nose weight needed with the classic. Plus the new wingspan is 90" - classic is 81.1".
The wings also have wider gear doors for the new trailing struts. The new trailing struts are offset aft. The wider doors actually give you more options for gear. Only straight trailing struts fit the classic wings.
If I were in your situation, I'd definitely get the upgrade kit. Pretty cheap for a new set of wings & stab on a jet this size.
I actually just sold my Lightning - had I known the new wings/stab were going on sale I'd have probably kept it.
It's a great airplane & I'll most likely get another one........
#84

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thanks Scott. good info to have.
you don't happen to have any build pics of your "Classic" do you? i am putting a P-160SX in mine. you think that will be enough? did you put in the smoke tank and use it for fuel (or smoke).
thanks in advance.
you don't happen to have any build pics of your "Classic" do you? i am putting a P-160SX in mine. you think that will be enough? did you put in the smoke tank and use it for fuel (or smoke).
thanks in advance.
#85
Senior Member
Hey Joe
What is enough for you? I think at least 75% of the Ligtning owners fly with turbines in the 36 lbs range.
My UL is 31.5 lbs dry, I have 4 liters of fuel on board. With a thrust of about 37-38 lbs I need less 300 feet for take-off on grass.
Hope this helps.
What is enough for you? I think at least 75% of the Ligtning owners fly with turbines in the 36 lbs range.
My UL is 31.5 lbs dry, I have 4 liters of fuel on board. With a thrust of about 37-38 lbs I need less 300 feet for take-off on grass.
Hope this helps.
#86

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Thanks Didier. i just didnt want it to be underpowered. I am not an "overpower it at all costs" kind of guy.
Question for the group. i am very seriously considering buying the UL wings to go on my Classic Lightning. several people have emailed me about what you should expect with these new wings on the "Classic" fuse.
my question is, has anyone here acutallly flown one of these hybrid birds? and does anyone have any pics so you can compare the UL and Classic with UL wings/tail side by side?
thanks in advance.
Question for the group. i am very seriously considering buying the UL wings to go on my Classic Lightning. several people have emailed me about what you should expect with these new wings on the "Classic" fuse.
my question is, has anyone here acutallly flown one of these hybrid birds? and does anyone have any pics so you can compare the UL and Classic with UL wings/tail side by side?
thanks in advance.
#88
Senior Member
Hey guys.
Last month a phothographer was making pictures of birds in the area of my flying field.
He saw a strange bird in the sky so hetook some pictures, haha. ;-)
Press F11 for bigger view.
http://picasaweb.google.com/jvd.rdk/...82005476771218
Last month a phothographer was making pictures of birds in the area of my flying field.
He saw a strange bird in the sky so hetook some pictures, haha. ;-)
Press F11 for bigger view.
http://picasaweb.google.com/jvd.rdk/...82005476771218
#89
hi guys
i recived my UL last week
the truth is im very disapointed with instruction manual and quality of hardware and the whole plane its not that good, i know its a good flyer i have tried it
but im having a bad experience on mine
i didnt recived the last production stabs like they say in the manual
also they didnt send me the main weels and brakes by mistake,
i have to wait a few more weeks to get them
also i have to reinforce the servo mounts on the elevators they came loose when tigthen servo screws
the way the servo stabs have to be mounted is really bad design
well i can enumerate a lot off things i didnt liked
like the way the vertical fin mounts
the threaded rods for the ailerons are too short
etc etc etc
but anyway i will trow instructions away and build it my own way
i own a ultra bandit and some other jets, i really can tell the diference, i know the price its diferent but for what we paid for the UL we should have got nicer and more detailed instruction manuals and some plans, and not the old ligthning instructions like i did
well sorry to say bad things about the UL but its just my opinion
check me out here
http://runryder.com/helicopter/gallery/12800/
i recived my UL last week
the truth is im very disapointed with instruction manual and quality of hardware and the whole plane its not that good, i know its a good flyer i have tried it
but im having a bad experience on mine
i didnt recived the last production stabs like they say in the manual
also they didnt send me the main weels and brakes by mistake,
i have to wait a few more weeks to get them
also i have to reinforce the servo mounts on the elevators they came loose when tigthen servo screws
the way the servo stabs have to be mounted is really bad design
well i can enumerate a lot off things i didnt liked
like the way the vertical fin mounts
the threaded rods for the ailerons are too short
etc etc etc
but anyway i will trow instructions away and build it my own way
i own a ultra bandit and some other jets, i really can tell the diference, i know the price its diferent but for what we paid for the UL we should have got nicer and more detailed instruction manuals and some plans, and not the old ligthning instructions like i did
well sorry to say bad things about the UL but its just my opinion
check me out here
http://runryder.com/helicopter/gallery/12800/
#90
You are not the only one my friend that has so many problems with CARF. I have had many many problems with them in the past year or so.
I have made a deposit of 500 Euros to buy a Classic Lightning in January 2009. Then on March they discovered that they have not processed my order. After many many emails they discovered that our original agreement for the price was not enough and they asked for extra money (this was after 4 planes that I've bought from them in 2 years). Of course I did not agree.
After many many more emails they sent me a plane from Australia in May (5 months after my original order!!). The plane that arrived to me was not delivered to my house as per their quote but I had to go and pick it up from the Airport. I had to pay for the truck extra for that freight. Then I discovered that the model was 3 years old and had some dents on the wings and also there was a part missing.
For all this I was communicating directly with the factory (not through a rep). At the end they stop answering me.
I have so many other things that happened to me with these guys it will take pages to list. This is just my latest happenings. Be careful when you get the wheels that it is the new compound otherwise they will leave the rims and they will ofcourse deny liability. And if your plane crashes when it has no wheels to land on (like it also happened to me) they will also deny liability and only ask for more money to compensate you.
But why don't they answer in emails???
I wonder how much money does one have to pay them in order to repsect the customer??
Once you built the plane it flies well although the instructions are not as good as BVM so it may take you a bit longer.
Anyway good luck with CARF
I have made a deposit of 500 Euros to buy a Classic Lightning in January 2009. Then on March they discovered that they have not processed my order. After many many emails they discovered that our original agreement for the price was not enough and they asked for extra money (this was after 4 planes that I've bought from them in 2 years). Of course I did not agree.
After many many more emails they sent me a plane from Australia in May (5 months after my original order!!). The plane that arrived to me was not delivered to my house as per their quote but I had to go and pick it up from the Airport. I had to pay for the truck extra for that freight. Then I discovered that the model was 3 years old and had some dents on the wings and also there was a part missing.
For all this I was communicating directly with the factory (not through a rep). At the end they stop answering me.
I have so many other things that happened to me with these guys it will take pages to list. This is just my latest happenings. Be careful when you get the wheels that it is the new compound otherwise they will leave the rims and they will ofcourse deny liability. And if your plane crashes when it has no wheels to land on (like it also happened to me) they will also deny liability and only ask for more money to compensate you.
But why don't they answer in emails???
I wonder how much money does one have to pay them in order to repsect the customer??
Once you built the plane it flies well although the instructions are not as good as BVM so it may take you a bit longer.
Anyway good luck with CARF
#91
Senior Member
Hey Paul.
Sorry to hear about your dissapointment.
Your absolutely right about there respons to emails.
Also its a shame they didnt update the manual to the UL.
But I am really happy with the UL and the way it flies. :-)
The only issue I have is that one geardoor wants to go open in a full power dive.
The plane is so neutral, I have no knife edge mixers needed!!
This is the first time I experienced that in a airplane. :-)
Hope you will enjoy the UL in the end.
Sorry to hear about your dissapointment.
Your absolutely right about there respons to emails.
Also its a shame they didnt update the manual to the UL.
But I am really happy with the UL and the way it flies. :-)
The only issue I have is that one geardoor wants to go open in a full power dive.
The plane is so neutral, I have no knife edge mixers needed!!
This is the first time I experienced that in a airplane. :-)
Hope you will enjoy the UL in the end.
#92
wow they must pay attention to customers...............
i will finish the plane and post some pics of it
i ordered just white color, to make my own desing
i dont like the designs they have
i will instal a jet central rhino
im not shure if im going to use a jr 12x or a futaba 14mz radio
thanks
i will finish the plane and post some pics of it
i ordered just white color, to make my own desing
i dont like the designs they have
i will instal a jet central rhino
im not shure if im going to use a jr 12x or a futaba 14mz radio
thanks
#93

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From: wilmington, DE
I am building an ULTRA at the moment and I have the following questions...
1. If I install the flap servos per the manual ( written for the classic lightning) The output arms hit the underside of the top of the wings HOWEVER If I mount them so the output arms point towards the wing bottom they fit better. IS this the correct way for the ULTRA?
2. The CG method in the manual says it is 45-50 mm in front of the center of the spar tube with the wings off, with the fuse balanced on the spar.. IS this OK for the Ultra version? THANKS
1. If I install the flap servos per the manual ( written for the classic lightning) The output arms hit the underside of the top of the wings HOWEVER If I mount them so the output arms point towards the wing bottom they fit better. IS this the correct way for the ULTRA?
2. The CG method in the manual says it is 45-50 mm in front of the center of the spar tube with the wings off, with the fuse balanced on the spar.. IS this OK for the Ultra version? THANKS
#94

Hopefully the Important note on the CARF-Models site under the instruction manual list helps, this gives new C of G and some notes.
regards
Dave
regards
Dave
#95
http://www.carf-models.com/public_ca...rtant_note.pdf
Interesting note on thevertical tube, never had a problem on my classic.
My UL should be in process now, Iwonder if CARF will incorporate the update?
Interesting note on thevertical tube, never had a problem on my classic.
My UL should be in process now, Iwonder if CARF will incorporate the update?
#99
Senior Member
After 80 flights with the Ultra Lightning/P-160SX combo, I swapped it for a AMT NL Olympus HP.
Wow, what a difference in performance. :-) This is the first flight with the new AMT so it was more like "to check for correct CG, dual rates/expo and mixers flight".
Surprisingly the CG was the same as with the P160SX due to the heavier components in the front.
The only thing I had to adjust was my dual rates and expo's as the roll rate was much higher then with the JetCat.
Anyway, happy with the AMT upgrade and the sound of an Oly is great!
Thanks Dick for making the video.
http://www.youtube.com/watch?v=ar0IAxJ1jWA
Wow, what a difference in performance. :-) This is the first flight with the new AMT so it was more like "to check for correct CG, dual rates/expo and mixers flight".
Surprisingly the CG was the same as with the P160SX due to the heavier components in the front.
The only thing I had to adjust was my dual rates and expo's as the roll rate was much higher then with the JetCat.
Anyway, happy with the AMT upgrade and the sound of an Oly is great!

Thanks Dick for making the video.
http://www.youtube.com/watch?v=ar0IAxJ1jWA


