RCU Forums - View Single Post - RichModels Works LTC ARF's
View Single Post
Old 11-23-2005 | 12:08 AM
  #31  
jmupilot's Avatar
jmupilot
Senior Member
 
Joined: Aug 2002
Posts: 392
Likes: 0
Received 0 Likes on 0 Posts
From: Harrisonburg, VA
Default RE: RichModels Works LTC ARF's

I had a new (old stock)Royal nose gear retract lying around and used that. I had to beef up the ply part mounted to the nose of the airplane to carry the extra stress of a nose gear. I used a standard servo for the retract . It is mounted in the same tray as the other servos. looking in the model with the nose pointed to you, the retract servo is on the left, middle servo is the eleavtor, and the right servo is the steering servo. I mounted a 4th smaller servo on blocks behind the steering servo for throttle to use the tube and wire already installed in the model. I figured that another servo in the nose would just take away some of the nose weight that is needed anyway. I didnt have to modify any of the structure only a little beefing up, which was just laminating some more plywood to this piece already there. I didnt use the piece of metal they included with the kit for nose weight. I didnt need that much just a small piece of lead.

The nose gear retract I used is mechanical and since it required a small amount of servo movement, a standard servo works fine. Also there is no stress on the servo since the locking mechanism on the retract takes any stress out of the servo. I just set it up so that in the down postion the servo wheel is in a postion to be inline with the wire that drives the retract down. This kinda serves as a servo saver. With the Futaba Super 8 radio its easy to set up ATV's so this happens. again looking at the servo in the gear down position the servo arm (wheel) is in the 12 o'clock position, and in the gear up position it is in the 4 o'clock. Gear up there is no strain on the servo anyway. The Hobbico mechanical nose gear retract (HCAP4020)looks just like the Royal one. It cost $11.99.

My particular nose wheel retract can be mounted belly or firewall. I used the belly mount and it is mounted to the plywood front piece that is used to mount the nose weight and battery. I only had to notch the front (firewall) to clear the nose gear strut, and cut the bottom of the model out to clear the wheel and strut. If you look at a picture of the full size EZ you'll notice the nose wheel strut is cruved.I i did this on mine, and the wheel is almost completely inside the aircraft. only about 3/16 of the nose wheel sticks out. I have thought about a little more curve to get the wheel completely inside, but you cant see it in the air anyway.

I'll try and get some pics posted this weekend.

Pete