Register Now

[KNIGHT] · 05-23-2011, 10:08 AM

I watched Finless Bob's trex 450 pro videos and in a tail assemble video he showed that when the tail boom is mounted to the frame and even when the screws are tightened the tail boom can still come out. He pulled it and showed it.

Is it really necessary to do this? And when drilling a hole will i bend the tail boom and damage it?

Ah Clem · 05-23-2011, 10:11 AM

Yes, you should do it.

It represents about five minutes of work compared to the time and expense of a potentially ugly crash.

As you are drilling through the plastic tail boom mount and the aluminum boom, you will not be bending the boom.

I did it on both my Trex 450 Pro and EXI 450 Pro.

Blink 182 · 05-23-2011, 01:18 PM

It is not necessary, I have over 120 flights without a pinned boom and it has been fine. If you want to pin the boom that is perfectly fine.

thanasi · 05-23-2011, 02:33 PM

Im doing a t 450 build and i can see the posibility of it comming loose. It took only 2 min and most of my time was spent looking for the tools required LOL.
Also the build/kit come with a extra screw just like Finless video points out.

THANKS Finless for your Videos

Flytochill · 05-23-2011, 03:58 PM

Quote:

Originally Posted by Blink 182

It is not necessary, I have over 120 flights without a pinned boom and it has been fine. If you want to pin the boom that is perfectly fine.

Really the way you fly and never ejected your tail boom wow

johnsma22 · 05-23-2011, 04:13 PM

Best method. I installed the boom into the boom block, making sure that the torque tube was not bottomed out in either gear, and then used a pin vice to drill a pilot hole through both the boom block and the boom. Then I just inserted a screw slightly larger than the pilot hole. Long enough to go through the boom block and boom but not long enough to make contact with the torque tube.

Pin Vice

Ah Clem · 05-23-2011, 04:21 PM

johnsma22,

That is exactly how I did it.

A few minutes of work to prevent a possible catastrophic failure makes complete sense.

You did a very neat job, by the way.

johnsma22 · 05-23-2011, 04:38 PM

Quote:

Originally Posted by Ah Clem

johnsma22,

That is exactly how I did it.

A few minutes of work to prevent a possible catastrophic failure makes complete sense.

You did a very neat job, by the way.

Thanks! Definitely cheap insurance. I saw Finless bob do this in the 450 Pro build videos on day one of my build. I can see the belt guys not wanting to do this because they need to be able to move the boom to adjust belt tension, but it seemed like a no-brainer for a torque tube setup.

Moktor · 05-23-2011, 06:13 PM

Even in the Finless vid I believe I remember him saying that he has had a 500 and 600 boom ejected but secured the 450 just in case (If I am wrong feel free to correct me, it has been awhile since I watched the video). I know that once I seat the tail supports, there is no way that boom is coming out, I could probably do more damagetrying to yank it out before I ever succeeded!

I am not against insurance, but the boom support seems like more than enough for the 450.

Blink 182 · 05-23-2011, 08:13 PM

Quote:

Originally Posted by Moktor

I am not against insurance, but the boom support seems like more than enough for the 450.

yup

celm · 05-23-2011, 08:28 PM

SYMAWD · 05-23-2011, 08:33 PM

I find a wrap or 2 of tape around the boom does the job.

Fullonoob · 05-23-2011, 09:07 PM

Quote:

Originally Posted by SYMAWD

I find a wrap or 2 of tape around the boom does the job.

That's what I did too no problem so far

marian206 · 05-24-2011, 03:24 AM

that's what I did too

Finless · 05-24-2011, 04:07 AM

Only thing I will add... is why does the new boom blocks on the 600 ESP since 2009 come with a hole in the tail end portion to pin the boom? Align added it now. Hmmmmm......

Bob

Bob O · 05-24-2011, 04:23 AM

Just PIN it!

It's just too quick, cheap, and easy not to.

rdlohr · 05-24-2011, 05:59 AM

Quote:

Originally Posted by Blink 182

It is not necessary, I have over 120 flights without a pinned boom and it has been fine. If you want to pin the boom that is perfectly fine.

This seems like questionable advice given that other have had problems in this area. Better safe than sorry.
Rick

[KNIGHT] · 05-24-2011, 07:19 AM

I pinned it to the frame with a screw to be safe. I dont want to risk my first build. Thanks Finless for that advice. Your videos are helping me a lot.

Anyway i was wondering, Finless said that align is using a pin to pin the boom to the frame after 2009. Then why haven't they changed the Trex 450 pro design to include a pinning mechanism?

Moktor · 05-24-2011, 08:38 AM

Quote:

Originally Posted by [KNIGHT]

Anyway i was wondering, Finless said that align is using a pin to pin the boom to the frame after 2009. Then why haven't they changed the Trex 450 pro design to include a pinning mechanism?

Finless is careful, and there is nothing wrong with that. However, I would guess that the mass of the 600+ boom is significantly higher than that of the 450. Now take that mass and start spinning it and you can see where the problem is with the Align boom mount. I would never be so bold as to suggest it is impossible for the 450 boom to go flying out, simply that I'm not convinced that the risk is great enough to lose sleep over, doubly so because my 450 tends to kill itself before I get to do anything crazy with it

Ah Clem · 05-24-2011, 01:03 PM

For the very few minutes it takes to do this, it does not make sense, to me, not to do it.

05-23-2011, 10:08 AM	#1 (permalink)
[KNIGHT] Registered Users Join Date: Jan 2011	Should i pin the tail boom to the frame? I watched Finless Bob's trex 450 pro videos and in a tail assemble video he showed that when the tail boom is mounted to the frame and even when the screws are tightened the tail boom can still come out. He pulled it and showed it. Is it really necessary to do this? And when drilling a hole will i bend the tail boom and damage it?

05-23-2011, 10:11 AM	#2 (permalink)
Ah Clem Registered Users Join Date: Jan 2006	Yes, you should do it. It represents about five minutes of work compared to the time and expense of a potentially ugly crash. As you are drilling through the plastic tail boom mount and the aluminum boom, you will not be bending the boom. I did it on both my Trex 450 Pro and EXI 450 Pro. __________________ KBDD-Team Captain, JR DFA Team Pilot. Forza 450, Forza 600N, Forza 700, Compass 6HV-U, Warp, 7HV,Knight Pro,Knight 3D, Atom, Odin II, 6HV, 3D Plus, Knight 50, Chronos, Velos, Steam 550 and 600, OMP M2 (and anything else I can get my hands on...).

05-23-2011, 01:18 PM	#3 (permalink)
Blink 182 Registered Users Join Date: Mar 2010	It is not necessary, I have over 120 flights without a pinned boom and it has been fine. If you want to pin the boom that is perfectly fine. __________________ (´・ω・`)

05-23-2011, 04:13 PM	#6 (permalink)
johnsma22 Registered Users Join Date: Apr 2010	Definitely Pin the Boom Best method. I installed the boom into the boom block, making sure that the torque tube was not bottomed out in either gear, and then used a pin vice to drill a pilot hole through both the boom block and the boom. Then I just inserted a screw slightly larger than the pilot hole. Long enough to go through the boom block and boom but not long enough to make contact with the torque tube. Pin Vice

05-23-2011, 04:21 PM	#7 (permalink)
Ah Clem Registered Users Join Date: Jan 2006	johnsma22, That is exactly how I did it. A few minutes of work to prevent a possible catastrophic failure makes complete sense. You did a very neat job, by the way. __________________ KBDD-Team Captain, JR DFA Team Pilot. Forza 450, Forza 600N, Forza 700, Compass 6HV-U, Warp, 7HV,Knight Pro,Knight 3D, Atom, Odin II, 6HV, 3D Plus, Knight 50, Chronos, Velos, Steam 550 and 600, OMP M2 (and anything else I can get my hands on...).

05-23-2011, 02:33 PM	#4 (permalink)
thanasi Registered Users Join Date: Feb 2011	Im doing a t 450 build and i can see the posibility of it comming loose. It took only 2 min and most of my time was spent looking for the tools required LOL. Also the build/kit come with a extra screw just like Finless video points out. THANKS Finless for your Videos

05-23-2011, 06:13 PM	#9 (permalink)
Moktor Registered Users My HF Map location Join Date: Nov 2010	Even in the Finless vid I believe I remember him saying that he has had a 500 and 600 boom ejected but secured the 450 just in case (If I am wrong feel free to correct me, it has been awhile since I watched the video). I know that once I seat the tail supports, there is no way that boom is coming out, I could probably do more damagetrying to yank it out before I ever succeeded! I am not against insurance, but the boom support seems like more than enough for the 450. __________________ MSH Prôtos, Stretched, SK720 Aurora 9

05-23-2011, 08:28 PM	#11 (permalink)
celm Registered Users Join Date: Jun 2010	YES __________________ Trex 700E DFC V-Bar , Trex 600N , Logo 600 SE FBL V-bar, Logo 600/550 FBL V-bar,Logo 400 FBL V-Bar ,Goblin 500 V-Bar, Blade 130X , Blade MCPx , Blade 500X

05-23-2011, 08:33 PM	#12 (permalink)
SYMAWD Registered Users Join Date: Mar 2010	I find a wrap or 2 of tape around the boom does the job. __________________ Blade 130X Blade mCP X (Bl) Blade Nano CP X Prôtos 700 Xtreme-Production

05-24-2011, 03:24 AM	#14 (permalink)
marian206 Registered Users Join Date: Aug 2009	that's what I did too

05-24-2011, 04:07 AM	#15 (permalink)
Finless Team Taco VP My HF Map location Join Date: Nov 2005	Only thing I will add... is why does the new boom blocks on the 600 ESP since 2009 come with a hole in the tail end portion to pin the boom? Align added it now. Hmmmmm...... Bob __________________ "Don't Taco My Pack Dude!" NEW Video Link -> Safety Video #1 Video Link -> CAUTION using powerful tools! Video Link -> How to CRASH TWICE in one flight! Video Link -> Don't Taco!

05-24-2011, 04:23 AM	#16 (permalink)
Bob O Member My HF Map location Join Date: Dec 2008	Just PIN it! It's just too quick, cheap, and easy not to. __________________ ):>

05-24-2011, 07:19 AM	#18 (permalink)
[KNIGHT] Registered Users Thread Starter Join Date: Jan 2011	I pinned it to the frame with a screw to be safe. I dont want to risk my first build. Thanks Finless for that advice. Your videos are helping me a lot. Anyway i was wondering, Finless said that align is using a pin to pin the boom to the frame after 2009. Then why haven't they changed the Trex 450 pro design to include a pinning mechanism?

05-24-2011, 01:03 PM	#20 (permalink)
Ah Clem Registered Users Join Date: Jan 2006	For the very few minutes it takes to do this, it does not make sense, to me, not to do it. __________________ KBDD-Team Captain, JR DFA Team Pilot. Forza 450, Forza 600N, Forza 700, Compass 6HV-U, Warp, 7HV,Knight Pro,Knight 3D, Atom, Odin II, 6HV, 3D Plus, Knight 50, Chronos, Velos, Steam 550 and 600, OMP M2 (and anything else I can get my hands on...).

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Register Now

Log-in