Extreme Flight 88" Yak - Build and Fly
03-30-2007, 09:07 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: vfalcon7
Just wondering where everyone is running the antenna. Inside or Out?
Just wondering where everyone is running the antenna. Inside or Out?
03-30-2007, 09:26 AM
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RE: Extreme Flight 88" Yak - Build and Fly
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
03-30-2007, 09:30 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
03-30-2007, 09:31 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: vfalcon7
Just wondering where everyone is running the antenna. Inside or Out?
Just wondering where everyone is running the antenna. Inside or Out?
03-30-2007, 09:44 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: Maudib
Great! Thanks for sharing back with us... I've got a Brillelli 36 coming witht eh new ignition... and that kittke ridbit will be put to use there with a small lion/lipo...
Great! Thanks for sharing back with us... I've got a Brillelli 36 coming witht eh new ignition... and that kittke ridbit will be put to use there with a small lion/lipo...
03-30-2007, 09:53 AM
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RE: Extreme Flight 88" Yak - Build and Fly
Yarom... as Mokken said... the throttle servo is your caveat... if you use a 5955 on the throttle too, then yep, you're O.K. No buzzing (any more than a regulated setup)
I do like the SmartFly regs... the failsafe switch and dual receiver power inputs make it worth it... You have to have a switch anyway... and this sin't that much more weight...
Still as soon as they offer a small throttle servo that will take the unregualted lion/lipoly juice... I may have to try it out... )
Vincent... I run a Spektrum AR7000 receiver in mine... don't have to worry about running the antenna...
Eagle... I think so... I'm trying out some tuned pipes on the 74" and 1.60FX.... but either it will get the 36 later... or I do have a Giant UCanDo I thought it might be good for too...
I do like the SmartFly regs... the failsafe switch and dual receiver power inputs make it worth it... You have to have a switch anyway... and this sin't that much more weight...
Still as soon as they offer a small throttle servo that will take the unregualted lion/lipoly juice... I may have to try it out... )
Vincent... I run a Spektrum AR7000 receiver in mine... don't have to worry about running the antenna...
Eagle... I think so... I'm trying out some tuned pipes on the 74" and 1.60FX.... but either it will get the 36 later... or I do have a Giant UCanDo I thought it might be good for too...
03-30-2007, 10:22 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
03-30-2007, 10:26 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: RodSmith
When you refer 7.4 volts, which battery are you using? I am asking because I would like to run without any regulators but don't want to fry my servos and/or receiver. I will be running li ion and they start out at over 8 volts on a full charge. The Hitec site specifies 4.8 to 6 volts for the 5955's. Thanks for any clarification.
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
Again, you have to use a spektrum radio and all 5955's or you will have problems.
03-30-2007, 10:32 AM
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RE: Extreme Flight 88" Yak - Build and Fly
I use 7.4 volt Li-Polymer packs. As each cell is 3.7 volt, it ends up at 7.4v. I believe Li-Ion is the same way except larger packs and round batteries.
Dave, I can power the throttle servo from the ignition battery and use just any servo.
It gets signal from the Rx but power from the 5.8V regulated ignition battery. In any case, if there is an issue with that battery, it does not matter for this servo as you lost the spark as well...
To some extent, the SmartFly Power Expander does a similar thing - it separates the command signal from the electric power. All the Rx gets is that one white lead for each channel.
03-30-2007, 10:35 AM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: Mokken
You can only run "Non Regulated" power to a spektrum RX, but you have to use all 5955's as they are the only servo available at the moment that can't handle over 7v. Don't ask me how someone figured out that the 5955 could run non regulated, but it can. Again, you have to use a spektrum radio and all 5955's or you will have problems.
ORIGINAL: RodSmith
When you refer 7.4 volts, which battery are you using? I am asking because I would like to run without any regulators but don't want to fry my servos and/or receiver. I will be running li ion and they start out at over 8 volts on a full charge. The Hitec site specifies 4.8 to 6 volts for the 5955's. Thanks for any clarification.
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
Again, you have to use a spektrum radio and all 5955's or you will have problems.Just to be absolutely certain. Is someone here actually flying the Spektrum/5955 combo on unregulated li ion/lipoly and how many flights do you have on this system? I just want to be careful with my new flying machine. Thanks.
03-30-2007, 10:41 AM
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RE: Extreme Flight 88" Yak - Build and Fly
HiTec rates the 5955 at 6 volt but it really has the capability of 7.2+ (It stemmed from the 5995 Robot servo that does it) But HiTec wants to avoid this very issue... of people trying to use 8 volts when other servos, receivers and misc. electromics might not take it...
Short answer is... you really can't get away with it... unless you run a 5955 on the throttle too...
Short answer is... you really can't get away with it... unless you run a 5955 on the throttle too...
ORIGINAL: RodSmith
When you refer 7.4 volts, which battery are you using? I am asking because I would like to run without any regulators but don't want to fry my servos and/or receiver. I will be running li ion and they start out at over 8 volts on a full charge. The Hitec site specifies 4.8 to 6 volts for the 5955's. Thanks for any clarification.
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated.
I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage.
I will regulate the separate DA ignition to stay around 5.8V.
Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
03-30-2007, 10:51 AM
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RE: Extreme Flight 88" Yak - Build and Fly
I don't think you can get by putting the throttle on the ignition battery and also having it connected to the receiver... the whole reason the SmartFly is optical is to prevent connecting the ignition system to the receievr system by electrical pathway... (NOISE) bugtime I understand...
This is why there isn't a solution to power the receiver, servos and ignition form one energy source...
This is why there isn't a solution to power the receiver, servos and ignition form one energy source...
ORIGINAL: yarom
I use 7.4 volt Li-Polymer packs. As each cell is 3.7 volt, it ends up at 7.4v. I believe Li-Ion is the same way except larger packs and round batteries.
Dave, I can power the throttle servo from the ignition battery and use just any servo.
It gets signal from the Rx but power from the 5.8V regulated ignition battery. In any case, if there is an issue with that battery, it does not matter for this servo as you lost the spark as well...
To some extent, the SmartFly Power Expander does a similar thing - it separates the command signal from the electric power. All the Rx gets is that one white lead for each channel.
I use 7.4 volt Li-Polymer packs. As each cell is 3.7 volt, it ends up at 7.4v. I believe Li-Ion is the same way except larger packs and round batteries.
Dave, I can power the throttle servo from the ignition battery and use just any servo.
It gets signal from the Rx but power from the 5.8V regulated ignition battery. In any case, if there is an issue with that battery, it does not matter for this servo as you lost the spark as well...
To some extent, the SmartFly Power Expander does a similar thing - it separates the command signal from the electric power. All the Rx gets is that one white lead for each channel.
03-30-2007, 11:00 AM
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RE: Extreme Flight 88" Yak - Build and Fly
Rod is has been done by a few 33% guys... (at least one I know of) ANd i did a test myself with a 2 cell lipo, AR7000 receiver and a 5955... it all worked without a hitch... I did not install a plane that way (and won't) but there are a few that have...
ORIGINAL: RodSmith
Just to be absolutely certain. Is someone here actually flying the Spektrum/5955 combo on unregulated li ion/lipoly and how many flights do you have on this system? I just want to be careful with my new flying machine. Thanks.
Just to be absolutely certain. Is someone here actually flying the Spektrum/5955 combo on unregulated li ion/lipoly and how many flights do you have on this system? I just want to be careful with my new flying machine. Thanks.
03-30-2007, 11:37 AM
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RE: Extreme Flight 88" Yak - Build and Fly
Thanks for everyone's input. I have the regulators and will use them initially and will continue to research the unregulated power possibilities. I will report back with any further info.
ORIGINAL: Maudib
Rod is has been done by a few 33% guys... (at least one I know of) ANd i did a test myself with a 2 cell lipo, AR7000 receiver and a 5955... it all worked without a hitch... I did not install a plane that way (and won't) but there are a few that have...
Rod is has been done by a few 33% guys... (at least one I know of) ANd i did a test myself with a 2 cell lipo, AR7000 receiver and a 5955... it all worked without a hitch... I did not install a plane that way (and won't) but there are a few that have...
ORIGINAL: RodSmith
Just to be absolutely certain. Is someone here actually flying the Spektrum/5955 combo on unregulated li ion/lipoly and how many flights do you have on this system? I just want to be careful with my new flying machine. Thanks.
Just to be absolutely certain. Is someone here actually flying the Spektrum/5955 combo on unregulated li ion/lipoly and how many flights do you have on this system? I just want to be careful with my new flying machine. Thanks.
03-30-2007, 12:06 PM
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RE: Extreme Flight 88" Yak - Build and Fly
In the last day or so I read where someone was using a fiberoptic extension for throttle and choke, while getting servo power from the ignition pack. I think it was on the site that deals with flat sided fuselages. Tom
And here it is:
It has the fire wall forward concept. The throttle and choke servos are mounted on
the motor box next to the carburetor. The links to the carb are 4-40 all thread for
slop free movement. The throttle and choke servo get their power from the ignition battery, and receive their signal via fiber optic extensions. This ensures RF isolation.
And here it is:
It has the fire wall forward concept. The throttle and choke servos are mounted on
the motor box next to the carburetor. The links to the carb are 4-40 all thread for
slop free movement. The throttle and choke servo get their power from the ignition battery, and receive their signal via fiber optic extensions. This ensures RF isolation.
03-30-2007, 12:15 PM
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RE: Extreme Flight 88" Yak - Build and Fly
I have been running hitec analogue servos on 2 cell lipo unregulated for just over a year and no problems only benefits, faster and stronger, everyone I tell this to oohs and arghs but it works for me. Wouldn't do it on big gasser though.
03-30-2007, 12:38 PM
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RE: Extreme Flight 88" Yak - Build and Fly
Yes, you can use a fiber optic connection... but if you're gonna put money into one of thsoe.. why not use a regulator with a failsafe switch instead?
Forgues Research sells fiber optic servo extensions.... $45 ea...
http://forgues-research.com/page10.html
(about middle of page - scroll down)
I think the reason one would one to pass using a reg is cost, weight and elimination of another failure point... so far everything else adds a failure point and costs and weighs about the same...
Forgues Research sells fiber optic servo extensions.... $45 ea...
http://forgues-research.com/page10.html
(about middle of page - scroll down)
I think the reason one would one to pass using a reg is cost, weight and elimination of another failure point... so far everything else adds a failure point and costs and weighs about the same...
03-30-2007, 01:14 PM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: yarom
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated. I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage. I will regulate the separate DA ignition to stay around 5.8V. Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
OK Dave, here' a question:
If I am using Hitec 5955 all around on a DX7, SmartFly ignition kill, is there any part of the istallation that needs to be regulated. I heard these Hitecs can take 7.4V rather well. I also heard the DX can take the voltage. I will regulate the separate DA ignition to stay around 5.8V. Which throttle servo can I get that will take this voltage as well? IS the whole thing going to buzz like crazy because of the voltage?
ORIGINAL: Maudib
Short answer is... you really can't get away with it... unless you run a 5955 on the throttle too...
Short answer is... you really can't get away with it... unless you run a 5955 on the throttle too...
Or here is the easiest solution. Run the rx and 5955's on the unregulated power. Then come out of the rx first thing with an MPI regulator (cheap and only one servo load so they can handle it no problem) into the servo leads. The MPI regulators are small, light weight, and have servo connections on both ends.
03-30-2007, 03:47 PM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: julian008
Hi all . what do you guys thinK of the JR 8711 servos for my " YAK 88" "
any opinions PLEASE >>>>>>>>>>>
Hi all . what do you guys thinK of the JR 8711 servos for my " YAK 88" "
any opinions PLEASE >>>>>>>>>>>
03-30-2007, 05:11 PM
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RE: Extreme Flight 88" Yak - Build and Fly
ORIGINAL: Josey Wales
Unless they changed the gears....[:'(]
ORIGINAL: julian008
Hi all . what do you guys thinK of the JR 8711 servos for my " YAK 88" "
any opinions PLEASE >>>>>>>>>>>
Hi all . what do you guys thinK of the JR 8711 servos for my " YAK 88" "
any opinions PLEASE >>>>>>>>>>>
On another note, just sold H9 Sukhoi.
03-30-2007, 08:17 PM
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RE: Extreme Flight 88" Yak - Build and Fly
8711 are the same gears as 8611a.
I am using 8611A all the way around, because that is what I have had stashed away. If they get sloppy and they will, I will send them in for replacement and let HH fix them.
You guys yammering on and on about wanting to run unreg'ed li=po voltage can crow all you want about it.....
But, my regulated li-po's will perform BETTER and more CONSISTENT. While your voltage is flucuating and changing the entire time you are flying, and making your stick "feel" change at the same time, my reg'ed li-pos will give me the same "feel" every flight.
Oh...and the weight penalty for consistent smoothness....1.5 oz per reg.
So go ahead, keep crowing about how you are pushing the envelope of the MAnu's Specs and how you getting away with it..
If it fails...who's fault is it, and if someoneis injured...can you live with it??
"I haven;t tried it in a gasser"....why?? Afraid??? Becasue you KNOW it isn't right?? Uh-huh.
Stick to the well known success of popular setups, and experiment away from people on planes that have little value.
A few pages back...Chris said.....enough already, go fly your planes. I came back to the thread to look for something, and here we are flapping our keyboard wings....
I flew my DL-50 DA-50 Chinese COPY powered EF Reject today.........I just might put this Chinese engine that turns 7500 rpm on a 22 x8 in this Chinese made airplane. It drops right in where the DA-50 went on....
Maudib...can you make a DL-50 Logo like DA's but change the name to DONG LING DL-50.....
One of my friends is doing a G-62 on his , also. The G-62 lite is as good as the Poulan Chainsaw 60's you guys got from MN at a premium price. 6700 on 24 x 8 menzS with stock pipe.
RD , how is yours running??
Also, one last thing in my rant , for my friends on this thread.....
IF YOU WANT AN 88" Red YAK .....I know where one is for sale at a local retailer.
I am using 8611A all the way around, because that is what I have had stashed away. If they get sloppy and they will, I will send them in for replacement and let HH fix them.
You guys yammering on and on about wanting to run unreg'ed li=po voltage can crow all you want about it.....
But, my regulated li-po's will perform BETTER and more CONSISTENT. While your voltage is flucuating and changing the entire time you are flying, and making your stick "feel" change at the same time, my reg'ed li-pos will give me the same "feel" every flight.
Oh...and the weight penalty for consistent smoothness....1.5 oz per reg.
So go ahead, keep crowing about how you are pushing the envelope of the MAnu's Specs and how you getting away with it..
If it fails...who's fault is it, and if someoneis injured...can you live with it??
"I haven;t tried it in a gasser"....why?? Afraid??? Becasue you KNOW it isn't right?? Uh-huh.
Stick to the well known success of popular setups, and experiment away from people on planes that have little value.
A few pages back...Chris said.....enough already, go fly your planes. I came back to the thread to look for something, and here we are flapping our keyboard wings....
I flew my DL-50 DA-50 Chinese COPY powered EF Reject today.........I just might put this Chinese engine that turns 7500 rpm on a 22 x8 in this Chinese made airplane. It drops right in where the DA-50 went on....
Maudib...can you make a DL-50 Logo like DA's but change the name to DONG LING DL-50.....
One of my friends is doing a G-62 on his , also. The G-62 lite is as good as the Poulan Chainsaw 60's you guys got from MN at a premium price. 6700 on 24 x 8 menzS with stock pipe.
RD , how is yours running??
Also, one last thing in my rant , for my friends on this thread.....
IF YOU WANT AN 88" Red YAK .....I know where one is for sale at a local retailer.