Latest R/C Blog Entries
250 Fixed Pitch Conversion Build Step by Step
| Oct 20, 2013 @ 03:38 PM | 1,485 Views
There have been so many questions about my 250 conversion, I decided
to document this build, so others can share my joy with this awesome bird.
HK250 FP Conversion Flying like a crazy person.
(5 min 0 sec)
There are a million ways to build it, this is just how I did mine.
Much editing was done, so I probably repeat myself in places, so please forgive
me if I don't catch the mistakes.
Today we will shim the head to allow a mounting to the smaller 3.5mm 250 shaft.
The FX059 (E-1003) head is designed for a 4mm shaft, and requires a custom
made shim to fit properly.
Pictured are the things we need to start. ( 3rd picture )
A small hobby size pipe cutter can be substituted for the Dremel and cut-off wheel.
In a pinch, a saw with a fine tooth metal blade would work, but you would have to
clean up the edge, and you might bend the weak aluminum shim.
The super glue is so we can glue the shim inside the shaft, and the razor blade is so we
can score the shim, allowing small crevices for the glue to "grab".
Brass tubing would be stronger than aluminum, but I also used aluminum on my
larger 300x conversion and it works fine, even with the higher stresses and loads.
Aluminum is also much easier to drill, and lighter.
First, cut a piece of tubing about 40cm long. It will stick out the end of the head when inserted,
so we have something to grip, and the excess will get cut off later.
Take your razor blade
View all Images in thread
Ball Bearing Tail / Rudder Upgrades
| Feb 28, 2013 @ 03:15 AM | 2,365 Views
Just pictures. You can figure it out from here.
Bearings are 2 x 5 x 2.5 mm.
You need a 5 mm drill bit to enlarge the bearing mount.
Shaft is 2 mm, and 35 mm long.
My CF shaft came from the canopy mount for a Honey Bee CP3.
The aluminum collar is a chopped up CP3 tail prop mount.
55 Mph from a Fixed Pitch
Been doing R/C cars for 25 years, but just got into helicopters (and loving it!!!)
United States, WI, Beloit
Reading, Heli's, Anything RC
Computer Repair Tech
Posts Per Day:
Most active forum:
Beginner Training Area (Heli-Electric)
(81.25% of user's posts)
Most active topic:
The new Double Horse 9116 Heli Thread
(60.23% of user's posts)
Find all posts by Steve_
Find all threads started by Steve_
Find all attachments by Steve_
Nov 02, 2012
Search This Blog
Showing Friends 1 to 1 of 1
Member of S.S.O.T.B.B.
The last 10 visitor(s) to this page were:
This page has had
All RCGroups content copyright © 1996 - 2013 by RCGroups.com.
The E Zone
RC Heli Resource
Terms of Service
Mark Forums Read
Back to Top