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Thunder Power RC . Mikado Modellhubschrauber . GrandRC

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Beginners Corner > Please Help
 
 
Fallen Angel
New Heliman
Location: New York

Well I have a Raptor 90 and I need some electronics for it. I need servos/gyro/TX/RX,, all that good stuff. I dont have a lot to spend and I was wondering if someone can tell me if I should buy this package from www.amainhobbies.com. The link is http://www.amainhobbies.com/product...oducts_id/9442. Now I know they are only 72 oz./in. but I dont do hardcore 3D. Although I do inverted flight just not crazy stuff like pros. For a Gyro I was thing a Futaba GY401 combo. But on my collective I am gonna get a better servo than the DS821's included in this package. I have never owned a nitro before and was hoping to get some insight on the above combo. For only $159.99 it seems like a good deal. Well I hope you guys can help me out. Thanks.
09-11-2008 06:02 AM
 
 
JetFire
Veteran
Location: The Golden STATE

I would like to say yes.. but I would personally reconcider on a better package because your radio will be with you for a long time. I understand your on a budget, but so are the rest of us for the most part. Get a radio that you will be happy with for a long time. Trust me... it will pay off in the long run in all aspects. Check out TowerHobbies. They carry nice packages with 3 easy pay options that will help you out. Also, concider on getting into the 2.4 ghz systems. Once you do, you'll never go back.

Hope that helped


Trex600N Pro
Kinetic 50

-The ONLY way you fail is when you quit.-
09-11-2008 06:52 AM
 
 
Fallen Angel
New Heliman
Location: New York

Thanks Zman. But whats the difference in Radio's. I mean I have seen like $2999.99 ones with NO SERVOS!! So the DS821's will be good for light 3D?
09-11-2008 07:38 AM
 
 
jrett
Senior Heliman
Location: san jose, ca.

I agree with the previous poster. This is something that if you skimp on now, you'll more than likely want to upgrade later.

On the other hand, if you do upgrade, you can always sell the old stuff, or even use it for another project.

I guess this is just more stuff to think about.

Good luck..
09-11-2008 07:41 AM
 
 
Fallen Angel
New Heliman
Location: New York

Hey Zman I didnt see any packages on towerhobbies that include radio/reciever/servos. Let alone a deal with easy pay option. Link?
09-11-2008 08:08 AM
 
 
TJinGuy
Elite Veteran
Location: Socorro, NM - USA

I know nothing about that radio but it is a JR and that can't be too bad, right?

For the servos, I am pretty sure the Rappy 90 uses separate servos for each swash movement so for the cyclic stuff I bet the DS821 will be fine. I would guess that you will need some more torque on the collective though, 700mm blades and all. If you do get that package, why not give it all a try and then upgrade as you find the need. You never know, they may suit your flying style just fine and if not, you can upgrade just one or two and maybe save some money

Edit: Tower has Futaba stuff like this
http://www3.towerhobbies.com/cgi-bi...p?&I=LXSBX1&P=0

- Chris

Variety+spice+life+supporting_paper_towel_industry=
King2+Rex450+Protos+Concept30
09-11-2008 08:08 AM
 
 
Eric Giorgianto
Heliman
Location: New Jersey

servos

Yo Angel, don't be suckered by what the pros fly, 300 oz toque servos and .5 sec speed, thats great for the pros, but if you are like most of the people out there 72oz servos will be fine for what you are doing,
you may want to look into getting some Hitec servos, they have some powerful servos for about 35.00 each that put out about 90oz torque at 6 volts, with metal gears, I have been using some old Hitec 605 BB servos for about 10 years now in a 50 size machine, they have been abused, crashed and thrown around in my heli's and never had a problem with them,Hitec no longer makes the 605BB, but they do make a newer version, it's the 635BB and they are awesome for the money, I just put them in a Freya 90 for a friend that flys crazy stunts and they are holding up really well, of coarse you can check the classifieds here as someone is always selling servos for a good price, just my 2 cents, hope this helps.

Regards Eric G
09-11-2008 11:55 AM
 
 
Mutt
Key Veteran
Location: t ca usa

The radio is fine I like my 7202 but the servos will not hold up for a 90. Go to Horizons site and read up on the servos they tell you flat out nothing bigger then a 30 size heli. even in my 30 size heli the servos took a dump in short order. If you want to be spedning lots of money use the servos in that package if you dont want to spend lots of money buy better servos take it from others who know. Do a serch here on them servos you will see all the horror stories on them.

"ANNOY A LIBERAL".... "QUIT YOUR JOB SO YOU DONT PAY TAXES"
09-11-2008 01:18 PM
 
 
JetFire
Veteran
Location: The Golden STATE

Fallen,
TJin posted a link of what I'm speaking of.

Quote 
Thanks Zman. But whats the difference in Radio's

IMO... The price is dictated by the number of channels and has the greatest impact on the difference. Having said that, the more channels... the steeper the price. The average pilot uses 7channels.

However, other factors also play a role. The more important is the method it transmits.. ie. AM, FM, PCM, and the latest 2.4ghz. Personally, I wouldn't settle for anything less than a PCM because you will be more prone to RF hits (glitches) in which we strive to avoid in this particular hobby. 2.4ghz is the way to go because it offers more than just a rock solid connection.

Another determining factor which has an impact on selecting a radio is the brand. But not so much to the newbie thats new to RC. However, different companies offer different features. For example, Spektrum has model memory.. and Futaba has frequency hopping just to name a few.

In a nutshell, the ideal radio would be the one thats free of interference’s in which it suits your flying style. Hope that helped.

Good Luck


Trex600N Pro
Kinetic 50

-The ONLY way you fail is when you quit.-
09-12-2008 06:35 AM
 
 
Fallen Angel
New Heliman
Location: New York

So are you guys saying I should NOT but the above package from Amain Hobbies? I just cant afford anything better right now and I wanna get this bird in the air.
09-12-2008 08:44 AM
 
 
Mutt
Key Veteran
Location: t ca usa

That is not wha I said I said the radio is fine there is nothing wrong with 72mhz there are a lot of us that will use it for a long time to come. but the servos are junk and will fail real fast in that heli. Even on horizons site they say do not use these servos in a heli bigger then a 30.

"ANNOY A LIBERAL".... "QUIT YOUR JOB SO YOU DONT PAY TAXES"
09-12-2008 12:33 PM
 
 
bagobitz
Veteran
Location: saddleworth,lancs,UK

Putting it another way, IF you use those servos, they're LIKELY to dump your heli at the most inconvenient time and it WILL cost a lot more than waiting until you can afford to fit better servos in the first place.

As others suggested, don't rule out used stuff from the classified's but exercise DUE CAUTION . check advertiser's feedback and post-history and get a feel of their integrity-level.

Any expensive used purchase should be on a cash/collect basis unless you can afford to gamble! It's sad, but a couple of bad eggs has made the Classified's a bit of a minefield!
09-12-2008 04:36 PM
 
 
Fallen Angel
New Heliman
Location: New York

Well actually I was looking at the deal on tower hobbies and the servos there are Futaba S3152 Servos and are only 69 oz/in. so why would I want these over the DS821's.
09-12-2008 10:37 PM
 
 
Mutt
Key Veteran
Location: t ca usa

the 821's fail they are not designed for bigger helis. like I have said several times to go horizons site and read thier warnings on the servos they tell you DO NOT use in a heli bigger then a 30. THey do not hold up to the vibrations of a glow heli. I have had them fail and I fly scale not 3d. You want to run them go forit I personally dont care severral of us here have answered the question many times over do some research. you dont want to believe anyone on the 821's use them I dont care I give up on trying to help you.

"ANNOY A LIBERAL".... "QUIT YOUR JOB SO YOU DONT PAY TAXES"
09-12-2008 10:59 PM
 
 
dave75d
Veteran
Location: Jacksonville, FL

lemmie add to this- DO NOT USE DS821 SERVOS. sorry, sounded like i needed to yell this. its unsafe for you and anyone else in the aera. i dont wanna be around if you try.

ten grand in helis and all i can do is hover
09-12-2008 11:28 PM
 
 
junkpilot
Senior Heliman
Location: Alamogordo N.M.

DS821s??????????????????????????????????

I thought the manufacturer recommended 821s be used for anything but helis. They wouldn't kick their own butts if they didn't know something was up!
Have you considered buying some used servos here in the classifieds?
I've been very fortunate buying on RR and got some good deals.
Helis tend to vibrate a bit more than airplanes and the 821s are reported to just quit. If you can deal with that go for it!
Junkpilot

When you fly JUNK it's hard to tell when you've crashed!
09-13-2008 01:31 AM
 
 
Fallen Angel
New Heliman
Location: New York

Okay guys thanks I will take your word for it on those servos. But can anyone point me in the right direction of some servos that would work in my 90 but not cost a fortune?
09-13-2008 08:24 PM
 
 
MattJen
Elite Veteran
Location: uk

rading this thread, it seems you are on a budget,

Why would you go straight to a 90 size machine and want to put the cheapest servo's in ?

The 90 size machine is gonna cost more to run than a 50 size machine,it is a bigger engine, bigger mechanics, you need the servo's to match, unlike a 50 size or 30 size machine where you use 3001 servo's you will NOT get away with that on a 90 size bird, if you cannot afford to put decent radio gear, then i would either put it to one side and save for decent gear, or sell it and go for a smaller sized model within your budget..

If you put cheap servo's in now, you will pay dearly in the future, and your machine will be unpredictable, as the cheaper servo's will not center as accurate as the more expensive ones, something which you need if you want to do 3D..

Matt

I bought my mother-in- law a chair for xmas, but she wouldn't plug it in
09-14-2008 07:27 PM
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