Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Topics - General > RC Radios, Transmitters, Receivers, Servos, gyros
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

RC Radios, Transmitters, Receivers, Servos, gyros Discussion all about rc radios, transmitters, receivers, servos, etc.

Thank you for your support (hide ads)
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 09-22-2012, 05:14 AM   #1
Super Contributor
hayofstacks's Avatar
Join Date: Jan 2012
Location: Utah
Posts: 1,754
Thanked 124 Times in 123 Posts
iTrader: (0)
Friends: (5)
Default myths about am servos.

I think it is time to dispell some of the myths that revolve around older planes, am radio's, and newer spectrum radio gear.

I have seen written many times, that am servo's are not compatable with spectrum receivers and other radio gear. Upon completion of my second am radio conversion, I would like to hear where this rumor comes from.

First plane I converted was an old 25ish sized phil craft ugly stick. I pulled an am radio out of it, replaced the battery pack, swapped in a newer parkflyer fm receiver off of my slowstick. I did several antenna down range check, and found everything on the model to work perfectly, farther then I can see it, with antennea down.

I used the fm receiver for two reasons. Plug and play with the origonal am receiver, and because I had doubts about if the spectrum receivers I upgraded to would work. After thinking about it, I went from a fm receiver to spectrum stuff on my slow stick. So I knew if the fm servo's would work, then so would am ones.

The old covering on my ugly stick was solarfilm. After a couple trips to different hobby shops, I decided that solarfilm is quite a bit thinner, and less heat resistive. I also could not find any trim sheets or stickers for it. I have had several holes open up on the wing in flight. My first patch I thought was caused by a level landing off feild when the motor cut out at low altitude. After inspecting the wing, it has many cracks and small holes in it already. The monocoat trim sheets I attempted to patch the wing with, work very well, but the solarfilm is too old and melts, even under the trim sheets.

This led me to another plane. We have three generations of airplanes in our garage. My grandfather. Was a silk and dope man. He also way overbuilt all of his planes. Making them very heavy, and many, the silk has rotted away. I found a foam wing and built up fuse with a newish looking .40 on it. We pulled it out, it fired right up, and the motor ran well. The biggest problem was the servo's. It used a pre 1991 am radio with the three prong futaba servo connevtors. I was getting ready to swap all of the servo's out when it hit me, I have about 5 bad servo's with good leads.

We had a 5channel "full range" receiver in my dads recently trashed trainer. I cut off all of the servo leads, removed radio and flight pack. Soldered on some "new" sevo leads, bound the receiver, and the plane is now ready to fly. After regluing the elevator stab, it should come out to be a very nice flying model. It is a high wing, symetrical foam wing covered in some sort of vynil meterial. Coming in at about 4lbs, this .40 fox motor should power it very nicely.

But back to the origonal question. Where did the am servo's not being compatable with spectrum receivers come from? I am guessing the radio gear to be somewhere between 1985-1991.
hayofstacks is offline  
  Reply With Quote

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Topics - General > RC Radios, Transmitters, Receivers, Servos, gyros

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Let's talk about servos - Whatever is on your mind AEAJR Beginners 287 07-29-2017 11:11 PM
Sold 10-packs of HXT900 Servos - $50 Shipped crxmanpat Radio Equipment For Sale & WTB 0 08-11-2011 10:55 PM
3S or 4S Battery Question(s) RCFlyer44 Power Systems 22 03-29-2011 04:55 AM
For Sale Aluminum Servo Mounts for 5g and 9g Servos !NEW DESIGN WITH MORE COMPATIBLE SERVOS! terrynshed Radio Equipment For Sale & WTB 0 02-04-2011 08:33 AM
For Sale Aluminum Servo Mounts for 5g and 9g Servos terrynshed Radio Equipment For Sale & WTB 0 11-19-2010 07:48 PM

All times are GMT +1. The time now is 11:02 PM.

Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation

Page generated in 0.34871 seconds with 41 queries