Futaba 8FG Super
#76
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RE: Futaba 8FG Super
Flyfast1: Just in case it makes a difference to you regarding the 8FG -There is a fairly simple way to put the flaps on a 3 position switch and use that throttle servo slow function to slow the flap servos instead. I forget which thread had the method, but i am using that method on several planes.
Brian
Brian
#77
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RE: Futaba 8FG Super
Thanks Brian, I was not aware of that.
-Ed B.
-Ed B.
ORIGINAL: aghost
Flyfast1: Just in case it makes a difference to you regarding the 8FG -There is a fairly simple way to put the flaps on a 3 position switch and use that throttle servo slow function to slow the flap servos instead. I forget which thread had the method, but i am using that method on several planes.
Brian
Flyfast1: Just in case it makes a difference to you regarding the 8FG -There is a fairly simple way to put the flaps on a 3 position switch and use that throttle servo slow function to slow the flap servos instead. I forget which thread had the method, but i am using that method on several planes.
Brian
#79
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RE: Futaba 8FG Super
I use the standard "fast charge" on my CellPro Multi4, and my Powerlab 8, which is 1 amp then trickle. I've also created a slower charge in the charger for times I'm not in a hurry. The NiMh should be able to handle a fast charge without problems. 1 amp is just over C/2 (1700 mah/1000mah) and I've read that NiMH should tolerate 1C charges.
Sam
Sam
#80
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RE: Futaba 8FG Super
ORIGINAL: DaddySam
I use the standard ''fast charge'' on my CellPro Multi4, and my Powerlab 8, which is 1 amp then trickle. I've also created a slower charge in the charger for times I'm not in a hurry. The NiMh should be able to handle a fast charge without problems. 1 amp is just over C/2 (1700 mah/1000mah) and I've read that NiMH should tolerate 1C charges.
Sam
I use the standard ''fast charge'' on my CellPro Multi4, and my Powerlab 8, which is 1 amp then trickle. I've also created a slower charge in the charger for times I'm not in a hurry. The NiMh should be able to handle a fast charge without problems. 1 amp is just over C/2 (1700 mah/1000mah) and I've read that NiMH should tolerate 1C charges.
Sam
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RE: Futaba 8FG Super
It sounds like I probably will use the wall charger mostf the time unless I have a need to recharge at the field. Then I will use my cellpro Lab 8.
Thanks
Thanks
#82
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RE: Futaba 8FG Super
I have never needed to recharge at the field. The 1700mA.hr NiMH lasts nearly 10 hours of continuous use and that s more than enough for a weekends flying without recharging. I simply charge it Friday night.
I carry a 2500mA.hr ZIppy Flight Max 5C Rx 6.6V LiFePO4 in my transmitter case asa back up pack. Its form factor is similar to the supplied Futaba TX battery.
With v4.1 of the Tx software I can adjust the alarm to 6.4V through the Alarm menu.
I carry a 2500mA.hr ZIppy Flight Max 5C Rx 6.6V LiFePO4 in my transmitter case asa back up pack. Its form factor is similar to the supplied Futaba TX battery.
With v4.1 of the Tx software I can adjust the alarm to 6.4V through the Alarm menu.
#88
RE: Futaba 8FG Super
Thanks for posting those pics!
I just looked at the listing for that pack. Only $9.48 from the US warehouse[8D] I may just give one of those a try.
TimBle, With the LVW set to 6.4V, have you let it continue to run after the warning goes off to see how long it the 8FG will run until the radio hits the voltage where it does a shutdown?
Pete
I just looked at the listing for that pack. Only $9.48 from the US warehouse[8D] I may just give one of those a try.
TimBle, With the LVW set to 6.4V, have you let it continue to run after the warning goes off to see how long it the 8FG will run until the radio hits the voltage where it does a shutdown?
Pete
#89
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RE: Futaba 8FG Super
ORIGINAL: pilotpete2
Thanks for posting those pics!
I just looked at the listing for that pack. Only $9.48 from the US warehouse[8D] I may just give one of those a try.
TimBle, With the LVW set to 6.4V, have you let it continue to run after the warning goes off to see how long it the 8FG will run until the radio hits the voltage where it does a shutdown?
Pete
Thanks for posting those pics!
I just looked at the listing for that pack. Only $9.48 from the US warehouse[8D] I may just give one of those a try.
TimBle, With the LVW set to 6.4V, have you let it continue to run after the warning goes off to see how long it the 8FG will run until the radio hits the voltage where it does a shutdown?
Pete
I am just suggesting that you may compromise the life and performance of the LiPo pack.
#90
RE: Futaba 8FG Super
Hi Rich,
No, this is in regard to the LiFePo4 pack, which would be sitting at about 6.6V (nominal) for almost the entire usable capacity. My only concern with using one of these pack is, would there be ample time to land if the LVW were to go off. Flying to LVW is not something I normally do
Pete
No, this is in regard to the LiFePo4 pack, which would be sitting at about 6.6V (nominal) for almost the entire usable capacity. My only concern with using one of these pack is, would there be ample time to land if the LVW were to go off. Flying to LVW is not something I normally do
Pete
#91
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RE: Futaba 8FG Super
ORIGINAL: pilotpete2
Hi Rich,
No, this is in regard to the LiFePo4 pack, which would be sitting at about 6.6V (nominal) for almost the entire usable capacity. My only concern with using one of these pack is, would there be ample time to land if the LVW were to go off. Flying to LVW is not something I normally do
Pete
Hi Rich,
No, this is in regard to the LiFePo4 pack, which would be sitting at about 6.6V (nominal) for almost the entire usable capacity. My only concern with using one of these pack is, would there be ample time to land if the LVW were to go off. Flying to LVW is not something I normally do
Pete
#92
RE: Futaba 8FG Super
Rich,
I use the A123 packs in all my gas and glow models for rx, servos and ignition (IBEC). I just top them off before the first flight of the day with the FMA Multi4. If I use a total of 40% from a pack in a flying day, that's a lot[8D]
I bring a bunch of models with me, and my thermal sailplanes (3S Lipo) can take a big chunk of time out of a flying day, so the noisy ones only get a couple of flights each.
For the transmitter, I can go either chemistry, since the 8FG is based on 6 cell Nimh it is totally compatible with 2S Lipo, but is also good with the LiFe packs, which I like because you can leave them fully charged, unlike the Lipo that doesn't do as well when left fully charged for any length of time.
Pete
I use the A123 packs in all my gas and glow models for rx, servos and ignition (IBEC). I just top them off before the first flight of the day with the FMA Multi4. If I use a total of 40% from a pack in a flying day, that's a lot[8D]
I bring a bunch of models with me, and my thermal sailplanes (3S Lipo) can take a big chunk of time out of a flying day, so the noisy ones only get a couple of flights each.
For the transmitter, I can go either chemistry, since the 8FG is based on 6 cell Nimh it is totally compatible with 2S Lipo, but is also good with the LiFe packs, which I like because you can leave them fully charged, unlike the Lipo that doesn't do as well when left fully charged for any length of time.
Pete
#93
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RE: Futaba 8FG Super
ORIGINAL: pilotpete2
Rich,
I use the A123 packs in all my gas and glow models for rx, servos and ignition (IBEC). I just top them off before the first flight of the day with the FMA Multi4. If I use a total of 40% from a pack in a flying day, that's a lot[8D]
I bring a bunch of models with me, and my thermal sailplanes (3S Lipo) can take a big chunk of time out of a flying day, so the noisy ones only get a couple of flights each.
For the transmitter, I can go either chemistry, since the 8FG is based on 6 cell Nimh it is totally compatible with 2S Lipo, but is also good with the LiFe packs, which I like because you can leave them fully charged, unlike the Lipo that doesn't do as well when left fully charged for any length of time.
Pete
Rich,
I use the A123 packs in all my gas and glow models for rx, servos and ignition (IBEC). I just top them off before the first flight of the day with the FMA Multi4. If I use a total of 40% from a pack in a flying day, that's a lot[8D]
I bring a bunch of models with me, and my thermal sailplanes (3S Lipo) can take a big chunk of time out of a flying day, so the noisy ones only get a couple of flights each.
For the transmitter, I can go either chemistry, since the 8FG is based on 6 cell Nimh it is totally compatible with 2S Lipo, but is also good with the LiFe packs, which I like because you can leave them fully charged, unlike the Lipo that doesn't do as well when left fully charged for any length of time.
Pete
#94
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RE: Futaba 8FG Super
I just recently bought a 9.9 v LiFe battery for my 7C. The voltage holds for a long time. But I have heard that they drop suddenly which is not good for a transmitter. Does the voltage go down to 9.8, 9.7 etc. Or does it just go dead? By the way how do I add this thread to My Forums?
#95
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RE: Futaba 8FG Super
ORIGINAL: geefish1
I just recently bought a 9.9 v LiFe battery for my 7C. The voltage holds for a long time. But I have heard that they drop suddenly which is not good for a transmitter. Does the voltage go down to 9.8, 9.7 etc. Or does it just go dead? By the way how do I add this thread to My Forums?
I just recently bought a 9.9 v LiFe battery for my 7C. The voltage holds for a long time. But I have heard that they drop suddenly which is not good for a transmitter. Does the voltage go down to 9.8, 9.7 etc. Or does it just go dead? By the way how do I add this thread to My Forums?
http://www.electrodynam.com/rc/EDR-207/index.shtml
You may have to substitute the FG website address for the xxxxx in the address below.
http://www.flyinggiants.com/forums/s...ad.php?t=17411
http://www.bphobbies.com/pdf/a123/a1...ngbrochure.pdf
http://www.bphobbies.com/view.asp?id=V052084
#96
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RE: Futaba 8FG Super
Pete and Busch
Since its a LiFePO4 pack, for the first 20 charges I don't discharge it below 3.2V per cell. This is not really to form them but with my Hyperion packs I find that they improve in performance over this period. I now get around 1850mAhr from a 1700 LiFePO4. No doubt this will drop back to nominal capacity as they get older but I find I have yet to fly a LiFePO4 flat. I always recharge them after a days flying.
I did sacrifice one pack (Hyperion) to see what happens if you discharge to 2.5V per cell. No fireworks, they simply do not balance very well after 30 ish cycles. So the manufacturer warnings are grounded in truth.
These Zippy packs just arrived in the week so I've charged all three of them at 0.8C for the first charge. They recommend to never exceed 1C charge rate and I certainly do not intend to exceed that.
So once I've "run in" the Zippy's, I'll record the flying time before the drop off point approaches. With all the LiFePO4's I have its typically around 6.3 to 6.2V depending on your appetite for excitement.
One of the packs is for the 8FG, the other two are for my BH FW 190 (with MVVS 30cc) and GW Racer Edge 540 30cc
Since its a LiFePO4 pack, for the first 20 charges I don't discharge it below 3.2V per cell. This is not really to form them but with my Hyperion packs I find that they improve in performance over this period. I now get around 1850mAhr from a 1700 LiFePO4. No doubt this will drop back to nominal capacity as they get older but I find I have yet to fly a LiFePO4 flat. I always recharge them after a days flying.
I did sacrifice one pack (Hyperion) to see what happens if you discharge to 2.5V per cell. No fireworks, they simply do not balance very well after 30 ish cycles. So the manufacturer warnings are grounded in truth.
These Zippy packs just arrived in the week so I've charged all three of them at 0.8C for the first charge. They recommend to never exceed 1C charge rate and I certainly do not intend to exceed that.
So once I've "run in" the Zippy's, I'll record the flying time before the drop off point approaches. With all the LiFePO4's I have its typically around 6.3 to 6.2V depending on your appetite for excitement.
One of the packs is for the 8FG, the other two are for my BH FW 190 (with MVVS 30cc) and GW Racer Edge 540 30cc
#97
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RE: Futaba 8FG Super
ORIGINAL: geefish1
I just recently bought a 9.9 v LiFe battery for my 7C. The voltage holds for a long time. But I have heard that they drop suddenly which is not good for a transmitter. Does the voltage go down to 9.8, 9.7 etc. Or does it just go dead? By the way how do I add this thread to My Forums?
I just recently bought a 9.9 v LiFe battery for my 7C. The voltage holds for a long time. But I have heard that they drop suddenly which is not good for a transmitter. Does the voltage go down to 9.8, 9.7 etc. Or does it just go dead? By the way how do I add this thread to My Forums?
Ihave one of those Hyperion flat TX pack for Futaba in my 6EX. Its drop off point is 9.2V whichis justover 3.0Vper cellIstop flying when it reaches 9.5V.By thenI've had nearly twice the flying on my slopies than if Ihad used the original 800mA.hr NiCad.
#98
RE: Futaba 8FG Super
With the flying season pretty much done around here, the 8FG will mostly be getting use setting up some new models and flying a Slow Stick around the property.
I took a 2S 1100mAh A123 pack from a model that has been winterized. It is a gentle friction fit in the battery compartment. I just topped it off and set the LVW to 6.4V. It will be interesting to see what actual percentage of the capacity it takes if I run it to LVW, and how many hours on the "Hobbs" that will take.
Pete
I took a 2S 1100mAh A123 pack from a model that has been winterized. It is a gentle friction fit in the battery compartment. I just topped it off and set the LVW to 6.4V. It will be interesting to see what actual percentage of the capacity it takes if I run it to LVW, and how many hours on the "Hobbs" that will take.
Pete
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RE: Futaba 8FG Super
Qustion for you guys. On the 8FG S if you are flying one model and make some trim adjustments are they automatically saved to the Tx? And then how do you transfer those changes to the SD card? I tried copying the model with changes and it created the model name with a 1 after it.