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View Full Version : CF Tail Boom and Skids installed...


surgicalCFe
03-07-2008, 02:23 PM
For those of you that haven't already installed these upgrades I thought I would post a few pointers.

The carbon fiber tail boom is a tight fit for both the tail case and tail boom holders on the frame of the heli (was for me at least). I couldn't just slide the parts on, I had to kinda get the tail case started on the boom and then tap the rear of the tail case with a small hammer to seat it properly. The same thing had to be done on the other end with the holders on the frame and it had to be inserted about 5mm past the inner most boom holder to have enough room to install the tail belt on the main gear with shaft inserted.

The carbon fiber landing skids and skid supports were a pain. The holes on the supports for the skids to be secured to were not quite big enough and had to be drilled out a little bit for the screws to be able to be started. Holding the skids/supports while screwing in the screws that hold the skids to the supports before drilling out the holes on the supports was impossible (for me). If you do have to drill out these holes make absolutely sure that you use a very small drill bit, you don't want to drill out to much so that the screws can't bite into the frame. Mounting the skids to the frame of the heli is pretty easy, just prop the frame up, upside down, set the brass standoffs in place for the rear skid support, gently position the support in place and attach with the appropriate screw (gently).

On a one to ten scale of difficulty working on this heli I would put this "upgrade package" at a healthy seven, it was a bit of a pain. I also installed Trex 450 canopy mounts and found very quickly that you absolutely need to take the frame apart to remove the existing support and install the new ones. Do not try to remove them any other way, you will just strip the screws (unless you have a special phillips head screw driver that bends at a 90deg angle about half an inch from the tip). I didn't take any pictures while the parts were being installed, limited time etc.., but I will take after pics when I get home from work tonight.

jad
03-07-2008, 04:33 PM
Nice to know, My carbon skids were fine I did manage to get the screws started and screw them in quite easily but that just shows how different moldings must work. Glad you mentioned the canopy bars, was thinking about doing this and alos cam eto the conclusions about taking the frame apart, really don't fancy doing this, what I did find and haven't tried yet is the old carbn rods going though and using bands to hold it in place, think this is the way I am going to go now. Thanks for the info though

surgicalCFe
03-07-2008, 05:34 PM
Almost forgot. I had asked this questions several times in the past. How much does the stock tail boom weigh? Never got an answer. Well it weighs 3g, the carbon fiber boom doesn't even weigh 1g (on my scale). :clappp

rotorhead58d
03-07-2008, 06:57 PM
my cf skids went on really nice. i still have the cf boom in the bag. i'm having trouble keeping the tail rotor assembly straight on the boom. the tail hits the ground, and turns it. i really dont wanna ca it. maybe i'll put the cf boom on . i have the micro heli tail.

surgicalCFe
03-07-2008, 07:20 PM
Thats weird. I was using a crappy mini screw driver, the skinny little metal kind thats hard to hold on to with very little magnetism. I'd try and get it lined up and hope the screw driver would hold the screw. I started turning and sure enough that damn tiny little screw would go flying. It was seriously upsetting me, lol. I used a small little Exacto manual drill, umm thing, and drilled out the holes on the supports a little, and the screw went right in after that. Just had to :whip it into shape. LOL love the emoticons.

I don't understand what you mean about the tail boom and not being able to get the tail case on (or something?). :thinking

rotorhead58d
03-07-2008, 07:54 PM
.

I don't understand what you mean about the tail boom and not being able to get the tail case on (or something?). :thinking

the tail case turns on the tail boom every time the tail hits the ground. i'm affraid to tighten the screw anymore than it already is.

surgicalCFe
03-07-2008, 08:18 PM
Hmm, mine is so tight at the moment that I can't twist it. I wouldn't worry about cracking the boom. Just don't go superman on it.

psindrup
03-08-2008, 03:46 PM
:Pics

surgicalCFe
03-08-2008, 05:22 PM
Ok, here's some pics.

41246

41247

41248

41249

chichiuno
03-08-2008, 07:12 PM
I rolled up a piece of sandpaper and enlarged the aluminum boom block.
CF boom went on nice..
took it for a flight, I ended up throwing the boom in the trash, and went back to the metal one.

I need to constant remind my self not to use CF boom in my helis.


Way too much twisting and flexing making the gyro go nuts,.

surgicalCFe
03-08-2008, 07:17 PM
I'm not having any issues like that. The boom is tightly secured and doesn't flex.

rotorhead58d
03-08-2008, 08:05 PM
I'm not having any issues like that. The boom is tightly secured and doesn't flex.

same here. i wish there was a set screw though.

rotorhead58d
03-09-2008, 01:15 AM
if i took off about 3mm on this cf tail boom, it would be perfect. it's too close to the pulleys for me.

mjr_larkin
03-14-2008, 05:26 AM
I rolled up a piece of sandpaper and enlarged the aluminum boom block.
CF boom went on nice..
took it for a flight, I ended up throwing the boom in the trash, and went back to the metal one.

I need to constant remind my self not to use CF boom in my helis.


Way too much twisting and flexing making the gyro go nuts,.

Just read this post. There's no twisting and flexing with the gaui CF tail boom. Just want to make that clear. I haven't installed mine but it's staff as can be.

jad
03-14-2008, 07:28 AM
Last night I fitted by new carbon Boom, no problems was a very good fit in the standard tail boom holder and the tail box fitted nice and tightly, I did use a smear of super glue on the boom under the tail box. I like the new look,

I have the carbon skids on there as well and put big dampers ( rubber rings ) on them to protect the bottom., .