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Servos for Funtana 90/DLE 20 Combo

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Servos for Funtana 90/DLE 20 Combo

Old 01-27-2012, 10:09 AM
  #26  
MetallicaJunkie
 
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Default RE: Servos for Funtana 90/DLE 20 Combo

ORIGINAL: wyo69cowboy

I put (2) 15 minute flights on my Reactor and put back in over 3000mah; however, I don't think I was topped off before those flights. That plane also has 4 aileron servos, so I have a little more draw than the average 50cc setup (all digital on the flying surfaces). Weather looks good for tomorrow; I'm hoping to get a few flights in and will check usage again on the single pack with a full charge.
thanks...i currently have a 5200 Li Ion in one 50cc and 2 2300 Li Ions in another... Fully charged they read about 8.42 volts, and after a days flying, they rarely go under 8 volts... so i think ill be fine with a 3600 . in once 50cc and two 2100s in the other .. Im scared to use a single 2300 battery... the drop of in LiFe batteries is steep, there no warning from what i heard... you can do a check and it will read 6.6 then in the middle of a flight it can die abruptly ...... http://www.hobbyking.com/hobbyking/s...ePo4_Pack.html
Old 01-27-2012, 11:07 AM
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ThumbSkull
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Default RE: Servos for Funtana 90/DLE 20 Combo

Do not confuse hong kong LiFe with a123. They are different.
They are not even close to the same in current delivery or in charge current capacity.
Genuine a123 only comes in multiples of 1100mAh capacity. a123 are cylindrically wrapped in 18650 or 26650 size only.
a123 is a brand name that has secured a proprietary chemistry that is far superior.
Old 01-27-2012, 11:31 AM
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Default RE: Servos for Funtana 90/DLE 20 Combo


ORIGINAL: MetallicaJunkie


ORIGINAL: BarracudaHockey

Mainly 3D.

1 2300Mah battery from WrongWayRC on my 50cc stuff, I order the battery with two JR leads (and a balance tap).
One goes to a HD switch then to the reciever.
One lead goes to a HD switch, an 42% scale optical kill, to a wrongway ignition voltage reducer (inline diode) to the DLE ignitions.

I charge afer 4 flights with a Cellpro 4S, takes about 10 minutes and puts back 50 to 55 percent of the capacity.

Both are 7955s all around with DLE 55's.
what charge rate do you you use at the field? and more less how many milliamps do you pump in the battery in the 10 mins it takes to charge? sorry for all the questions, im getting into the a123 and LiFe batteries...
Ask away.

I can give you specific answers for my planes but the way to deal with LiFe/A123 batteries is to fly a couple of flights, and charge and see how much you put back in using a good charger. You can then get an average consumption per flight. I strive not to fall below 60 percent usage (40% remaining), 4 flights on my 50cc planes gives me 50 to 55 percent capacity used. Since charging is so quick (I charge at 4A) I just see no reason to carry bigger batteries around.

As a side note, I just finished a review of the Hangar 9 33% Pawnee. The plane uses a 12110 12 channel power safe reciever. I'm running 2 2300 A123 packs in that plane.

Battery A goes into the A side of the power safe.
Battery B goes into the B side of the power safe, with a second battery lead powering the RCXcel Ignition.

I really wanted to up the capacity so I didn't have to charge while we were glider towing but the redunancy is a nice warm fuzzy.

After 4 flights the A battery is around 75 remaining and the B (split) battery is around 68% left. Thats 4 14 minute or so flights, but even with 10 channels in use, the A6020's arent putting a tremendous draw on the system flying the Pawnee
Old 01-27-2012, 11:34 AM
  #29  
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Default RE: Servos for Funtana 90/DLE 20 Combo

ORIGINAL: ThumbSkull

Do not confuse hong kong LiFe with a123. They are different.
They are not even close to the same in current delivery or in charge current capacity.
Genuine a123 only comes in multiples of 1100mAh capacity. a123 are cylindrically wrapped in 18650 or 26650 size only.
a123 is a brand name that has secured a proprietary chemistry that is far superior.
Exactly!

If you want to learn there's a few sites out there like Hangtimes that give information or look up WrongwayRC and give Rich a call, he can/will talk the ears off an elephant if you let him get going, about A123 batteries and he will customize a pack (leads, type of balance tap, length etc) to your specs or needs.
Old 01-27-2012, 03:58 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo

I wouldn't put anything smaller then a 5645 on the ailerons or you will experience blow back.
Old 01-27-2012, 04:05 PM
  #31  
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Default RE: Servos for Funtana 90/DLE 20 Combo


ORIGINAL: Lightspeed1551

I wouldn't put anything smaller then a 5645 on the ailerons or you will experience blow back.
Good point! I am using Tower TS160's, which are re-badged Hitec 5625's, on the elevators and ailerons on my Reactor. 'Bout soiled myself early on with that plane in a high speed rolling dive; I didn't have good geometry(clevis in too far on aileron horns), and even with 2 servos on the wing, got "blow back" and a VERY slow roll(instead of a fast one) that almost put me into the ground inverted. Since learned about extending radio end points and corrected my geometry lol
Old 01-27-2012, 08:56 PM
  #32  
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Default RE: Servos for Funtana 90/DLE 20 Combo

yeah tyhe reactor 160 has enormous ailerons... with the right geo and servos you can roll so fast its blurry
Old 01-29-2012, 02:03 PM
  #33  
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Default RE: Servos for Funtana 90/DLE 20 Combo


ORIGINAL: daveopam

The digitals have more holding power @ center. Put the best servos on the Aile on this plane. Most planes I would say put the best on the rudder. Not on this one.

David
My thoughts too, as the tail feathers are not that big, and at normal 3D speed the power to move them is likely alot les than the massive ailerons yanked on fully at crusing speed., which many tend to do.

Almost all losses in the Funtana line up , is Aileron/wing destruction due to flutter..
Old 01-29-2012, 05:37 PM
  #34  
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Default RE: Servos for Funtana 90/DLE 20 Combo

Ditto nitrowing. I plan to do some reinforcing in the aileron servo mounting area of the wing using some light carbon fiber sheet. Also seal all control surface gaps and make sure allcontrol linkages are slop free. Does anyone out there think either mass or aerodynamic counterbalances on ailerons and elevators would be worth the time or trouble or would it be overkill?
Old 01-29-2012, 07:14 PM
  #35  
nitro wing
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Default RE: Servos for Funtana 90/DLE 20 Combo

no. your mentioned concerns and ideas are fine, adjust the flying style, keeping the cruising speed and entry into high G manouvers reasonable and it will be fine. enjoy.
Old 02-02-2012, 08:07 AM
  #36  
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Default RE: Servos for Funtana 90/DLE 20 Combo

Just be sure the linkage is done right. This is a mini servo( it's what I had a pic of on this computer) but the principal is the same. Heavy duty arm, ball link, metal clevis in a straight line with the horn. NEVER put the ball link on the horn end.

David
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Old 02-02-2012, 02:32 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo

whats the reasoning behind that no ball link to horn? I see it on double horns always, too much side force on a single?
Old 02-02-2012, 06:30 PM
  #38  
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Default RE: Servos for Funtana 90/DLE 20 Combo

I just ordered up 5 of these for my 20cc edge, http://www3.towerhobbies.com/cgi-bin...?&I=LXAXFE&P=0 With $30 off 200 i couldn't pass
them up.
Old 02-03-2012, 11:34 AM
  #39  
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Default RE: Servos for Funtana 90/DLE 20 Combo

Is that a MG servo? I can't find anywhere that specifies if this is a metal gear or plastic geared servo. That information is conspicuously omitted from the specifications.
Old 02-03-2012, 01:07 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo

Yes, if you check on Servo city it says metal gear.
http://servocity.com/html/s3051hv_hi_voltage_servo.html
Old 02-03-2012, 01:26 PM
  #41  
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Default RE: Servos for Funtana 90/DLE 20 Combo

only gives 6 - 7.4V rating? not work with 4.8? something to consider if not running bigger batts.
Old 02-03-2012, 01:45 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo


ORIGINAL: nitro wing

only gives 6 - 7.4V rating? not work with 4.8? something to consider if not running bigger batts.
Yes they are high voltage servos, I haven't recieved mine yet, I don't know if they will work with 4.8volts. I use LIFE packs at 6.6
so I am ok. I usually do a fish scale check to see what kind of torque I get from servos so I will e-mail futaba about 4.8 and
test them to see what kind of torque they produce at 4.8.
Old 02-03-2012, 03:24 PM
  #43  
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Default RE: Servos for Funtana 90/DLE 20 Combo

HV servos are good if you are running HV all-around... if you are using a std throttle servo you can use one of these http://www.spektrumrc.com/Products/D...odID=SPMVR5203 ...i predict servo companies will do away with HV servos due to the popularity of A123 and Life batteries

from 4.8 to 6v you can expect about a 20-25 % increase in power based
Old 02-03-2012, 05:04 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo

Double horns with a ball link in the center is fine. I have seen guys use a ball link on a standard horn. Yes it will twist and sooner or later break.

david
Old 02-03-2012, 07:32 PM
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Default RE: Servos for Funtana 90/DLE 20 Combo


ORIGINAL: MetallicaJunkie

HV servos are good if you are running HV all-around... if you are using a std throttle servo you can use one of these http://www.spektrumrc.com/Products/D...odID=SPMVR5203 ...i predict servo companies will do away with HV servos due to the popularity of A123 and Life batteries

from 4.8 to 6v you can expect about a 20-25 % increase in power based
I don't know if we will see HV servos done away with, there are alot of guys that use Lipo for RX and if they don't have to regulate them they will be happier
(one less point of failure). It is nice to see that futaba is finally coming into the game with a reasonably priced digital servo. I am using LIFE on my
edge so I can use HV and standard voltage digitals without a regulator to my throttle servo.

One other note, if you are using A123, or LIFE cells, unregulated your standard voltage servos will have a little more output torque than if it is regulated
to 6volts, my airtronics 94851 are rated for 192 oz at 6 volts, but on my Life at 6.6 volts I see around 209oz
Old 03-06-2012, 05:50 PM
  #46  
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Default RE: Servos for Funtana 90/DLE 20 Combo

In getting back to original question, I have the Funtana 90, i use a 2000 mah 6volt battery. I'm useing 5625s on the ailerons for speed and 5645s on rudder and elevators for torque, seems to be a good combo.
Old 03-14-2012, 12:02 PM
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Papa51
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Default RE: Servos for Funtana 90/DLE 20 Combo

Hey Shov,

You using one battery for everything? This does that include an electronic ignition?

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