Servo size
 

Hi, what size of servo do I need to use on this plane on the retracts, rudder and elevators. the manul calls for standard servo. I know that I need a low-profile on the retracts but what size would be the best. How do you size a standerd pre what size of plane? When alot of manuals for differnt size planes state standerd size. This is the plane need sizes for. I just bought this plane from FlyBoy Models. They hade very quick service.

Martin AM-1 Mauler

Specifications:
All balsa construction. This model comes with Retract.
Wingspan: 1475mm (58 in)
Length: 1193mm (47 in)
Engine: 2C, 0.61-0.74 / 4C 0.91 size
Radio: 5 channel, 6 servos

Thanks

RE: Servo size
 

Just the standard size servos will work fine.

use the Futaba 3003 or Hitec 322 servos except for the retract servo

All the 40 to 60 size planes you are going to own can get by with just the standard servos

RE: Servo size
 

Thanks w8ye, what do you think would be a good setup for this plane and what size of engine would sute it the best.

RE: Servo size
 

I'd use one of my Saito 100's in it. I would have to by the retract servo but I have a lot of the std size servos on hand

RE: Servo size
 

What would you take for one of your Saito 100's and the standred servos needed.

Thanks

RE: Servo size
 

I don't think w8ye was offering to sell them (I could be wrong of course)... an ASP/Magnum .90 4 stroke would drive that plane around nicely and there's plenty of them brand new and dirt cheap on ebay. You could even go with an ASP/Magnum 1.20 - I have the ASP one in my Super Skybolt and it provides excellent service. Probably not as powerful as the same size in a more costly brand, but at 1/3 the price who's complaining? :D

RE: Servo size
 

JR st47 servos have a little more punch than the Futaba s3003.

RE: Servo size
 

i'm not familiar with JR's

RE: Servo size
 

Hey Fly,
Hobbypeople has the Magnum .91 fourstroke on sale for 149 on their site.
I just broke in the .52 4S that I bought on their Xmas sale and I love it. It ran great on the Fox Miracle plug I used.
They also have Airtonics standard servos on sale for 7.99. Their BB HD servos are 11.99.
Good Luck,
Curtis


http://www.hobbypeople.net/gallery/210970.asp

http://www.hobbypeople.net/gallery/474103.asp

http://www.hobbypeople.net/gallery/474144.asp

RE: Servo size
 

What prop did you use to break in your 52. I have a couple of the 91's on my sea planes, may have to order another one. I will also get a couple of their mg hd servo for 19.99 use them on my pull-pull rudder.:):)

RE: Servo size
 

It said in the manual to use a 12x5, but I couldn't find one in the LHS's that I looked in, so I used a MA 11x6 that I had on hand.
I barely flip primed the engine, then put the driver on and bump started it and it just ran beautifully. Great little engine.
Curtis

RE: Servo size
 

I have JR st47 standards in all but one of my planes, and they have served me well. They have .47oz of torque where the s3003 has .44oz at 4.8V. They are also $1 less than the Futabas at my LHS!:D

RE: Servo size
 

Talking servosI use mostly Hi-Tec but I see that Hobbypeople have airtronics servos, metal gear for 19.99 with approx 144 oz torque. I want to use them for pull-pull. Anyone have any experience with airtronics servos. Or, should I stay with the Hi-Tec for about twice the price.:(:(:(

RE: Servo size
 

Hey Irish. Sent you a PM.

About Airtronics servos, yeah, I would say that clearly, 75% of my servos are Airtronics. They are fine servos. But, to tell you the truth, I also have a few Futabas, several Jr/Spektrum, and a few Hitec and have found that they are all pretty much the same. If you can get a deal on Airtronics, go for it. Especially the metal gear ones for $19.99.. you can't go wrong with a deal like that.

CGr.


ps. That's in-oz or kg-cm of torque, by the way. Sorry to correct you guys.

RE: Servo size
 

Hi thanks for the help. Just ordered the mag 91 from Hobbypeople. Had problem with shopping cart, took awile. Who has Futaba servo on sale. I also like spekturm servo, my HellCat has all spektrum servos, rx and tx componets. I read wher it is better to match up componets then to mix. Is this so. Well back to work for me.

Thanks

RE: Servo size
 

Mix and match, but know that airtronics have different wiring, so you may need to swap leads in the plug to get everything working right.

Jack

RE: Servo size
 

flystright,

I would go with either the JR ST-47BB or Futaba S3004 (I fly both and can't tell any difference in them). Both these servos have ball bearings on the output shaft while the stardard ST-47 and S3003 have bushings on the output shaft. I've got a few of both with the bushing that have slop in them (these have been regulated to throttle servos). They cost a couple bucks more for the ball bearing versions but in the long run are well worth it. I fly .40 to .60 sized planes on these servos and have had no issues.

Hogflyer.

RE: Servo size
 

This is only on older Airtronics servos. Everything that has been sold by Airtronics in the 5-6 years has had "Z" connectors on them which will allow them to connect to every other major brand. The easy way to tell is if the connector is black it's older Airtronics, and if it's a blue connector it's a "Z" connector that will connect right up.

Ken

RE: Servo size
 

Hey CG you are right
94162Z Specification

Weight 2.36 oz
Dimensions 1.54 x 0.79 x 1.61 in
Torque 115 / 144 Oz In @ 4.8 / 6.0 V
Speed 0.23 / 0.18 sec @ 4.8 / 6.0 V
Std 3 Pole Motor
metal gears (1 nylon for smoother operation) with 1 ball bearing on the output shaft


I see in the previous post that I may have to change the wires. I thought that was only on the older ones. Tis true of the new servos?

RE: Servo size
 

AHHHHH!!!! glad to see that. These are the z-connectors

RE: Servo size
 

I have Hitec 422, 425, 322, 225, 81, Futaba 148, 3004, and 3003 servos

I use them with Hitec and Futaba receivers. Generally use a Futaba transmitter

RE: Servo size
 

Ah, Ha. Sounds like you have been looking at my collection of servos. You need to add some 625's and 645's. :):):)

RE: Servo size
 

Thanks for the info.

RE: Servo size
 

I going to use my Spekturn Radio so I will also be using spekturm RX this is the type of receiver that will work with this radio, right?

RE: Servo size
 

Yep, only a spektrum rx (or some of the top end jr rx's) will work with a spektrum tx

RE: Servo size
 

Thanks, Question If I use Spekrum dig servo and program one in reverse mode with a programmer can I use a plan Y harness on Ailerons

RE: Servo size
 

But you can use most of the name brand servos with the Spektrum receiver

RE: Servo size
 

flysright,

Go with the Magnum XL 91 RFS engine and the Airtronics 94102z standard servos in your plane. The deals at Hobby People is very nice right now and you should be well please with those components in your 60 size model.

JR is the brand that has different polarity (in the transmitter) but it should be a non-issue. The new Z-connector servos work with any receiver that will accept servos with z-connectors. (I have Hitec, Airtronics, and Futaba servos all plugged into my Airtronics receiver in one of my planes.)

I bought 4 of those metal gear servos for future use but they are larger and heavier than what I'd want in a 60 size model.

Regards,

Clay

RE: Servo size
 

Why use a "Y" harness? Your radio is capable of supporting dual aileron servos, so just make use of its capabilities. You should be able to program in aileron differential while your at it.

Hogflyer

RE: Servo size
 

Hi thanks. Have not began to learn my Radio yet. Just learning how to build a good plane. I belive is is a good foundation to have under your belt.

RE: Servo size
 

Thanks for updating me Ken!!!

Jack

RE: Servo size
 

What are you using as a trainer?

RE: Servo size
 

Hi I will be using the Hobbico NexSTAR Select - 46 for starters.

RE: Servo size
 

It's probably easier to take hogflyer's suggestion than it is to reprogram your servo, and cheaper than buying a Y harness and servo programmer. Simply plug your left aileron servo into the AIL connector on your receiver, plug your right aileron servo into the FLAP or AUX1 (whichever you have) connector, and change your model's wing type to "flaperon". That setting automatically changes your flap connector to an opposite aileron connector, and will also give you flaperon ability on your flaps switch but you don't need to (and probably don't want to) use that. You could also leave your wing type alone, and program a mix from the AIL to FLAP that reverses the inputs, and disables the flaps switch.

If you really don't want to do it that way, just buy yourself a "servo reversing Y adapter" which looks like a normal Y adapter which a bit of circuitry in the middle that reverses one of the servos. Still cheaper than a servo programmer.

RE: Servo size
 

Hi will the Hitec HS-311 BE OK will be using 6v instead of 4.8. The futaba 3003 servo specifications are 44.3 oz/in @ 4.8V and the Hitec is 51 oz/in if I use 6v and 42 oz/in @ 4.8


Thanks

RE: Servo size
 

It's a standard servo - should be OK

http://www3.towerhobbies.com/cgi-bin...&I=LXDEL5&P=ML

RE: Servo size
 

Thanks w8ye I already have some of these servo at home, Would talk more but in process of returning home from NJ.



Thanks again

RE: Servo size
 

Have a good safe trip

RE: Servo size
 

Yep they'll be fine. I'm using HS311's for the flaps on my harmon rocket. They're not going to be quite as speedy or precise as the spektrum DS821's I use for the rest of the flight surfaces, but the 821's are overkill - I just happened to have them so I used them. And at AU$60 for the DS821's and AU$15 for the HS311's the Hitec's are much better value for basic use.

RE: Servo size
 

Thanks. I found the 821 at Hobby Hanger LHS just outside of WDC where I just finished a job, it is a very nice hobby shop. Thay also have many RTF airplanes with the price range from 7000.00 to 100.00. The fellow that ownes the hobby shop has been flying planes for more then 30yrs. He builds all the RTF his self for resale, it would be very nice to have one of these hobby shops close to the house. Well back on the Road.

Thanks to all for all the Help.