E-flite Blade SR 120 Thread. - Page 685 - RC Groups
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Jan 17, 2012, 06:43 PM
Look ma, no hands!
1Pilgrim's Avatar
Quote:
Originally Posted by makg
Has anyone tried this motor? Any real increase in performance?
I just installed the Xtreme motor - only have about 20 minutes on it. The first 10 minutes were stock; the heli really "jumped" and it was hard to hold altitude 'til I got used to the extra power.
For the other flights the heli was loaded down with a #16 camera, heavy rubber band, a penny and the custom "see through" canopy. It still flew strong, no problem with the extra weight, and it was very stable and predictable in the air. I give the motor a "10".
Last edited by 1Pilgrim; Jan 17, 2012 at 06:49 PM.
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Jan 17, 2012, 06:47 PM
Rock-n-Aileron Roll!
Saxguy1000's Avatar
Quote:
Originally Posted by makg
Has anyone tried this motor? Any real increase in performance?
Yes. Buy it.

Jan 17, 2012, 07:10 PM
ISP Supervisor
makg's Avatar
Thanks guys! I just purchased a 120 SR from a RCG member, so I will definitely keep it in mind.
Jan 17, 2012, 07:13 PM
Rock-n-Aileron Roll!
Saxguy1000's Avatar
Quote:
Originally Posted by orectolobus
I recently added a tail brace mod to my machine.
Rather than buy some parts for another heli I fabricated mine from
some available stuff. I used some .035 CF rod, electrical connectors
and some heat shrink tubing. It really stiffened the tail boom up and
the helicopter seemed a little more stable... maybe I was just more relaxed.

I used an electrical connector on the boom as well. I was trying to keep the
aft weight down for CG purposes. I spread the wire receptor apart with a needle
nose and expoxied the ends the CF rods in the connector. Filed the blade part
of the connector down to the width of the CF tailboom.... wrapped with thread
and put some black electrical tape over. It's all easy to remove.

Another day... another mod...
Another cool mod! Now I need the Klingon stealth body with secret squirrel spy camera--and the DIY tail stabilizer. You guys are busting through with great stuff!
Jan 17, 2012, 08:48 PM
Look ma, no hands!
1Pilgrim's Avatar

New & improved stealth canopy...


...taking advantage of the wide angle lens on the #16 cam. You can just see the left side of the canopy fluttering in the breeze...

http://www.youtube.com/watch?v=2xnlugggTs0
Jan 17, 2012, 09:24 PM
Registered User
Blackanthem's Avatar
Looked so good with the skids, I decided to give her a new canopy and tail fin.

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Jan 17, 2012, 10:06 PM
Wind you go around in circles
Wind Spirit's Avatar
Quote:
Originally Posted by 1Pilgrim
Do a search for the #16 HD keychain cam. There's a thread devoted to it
Found it, Thanks WS.
Jan 18, 2012, 01:29 AM
Registered User
Dodge DeBoulet's Avatar
Quote:
Originally Posted by makg
Link still works for me...Weird. Try this
That one works, thanks. And I already have one of those
Jan 18, 2012, 09:04 AM
SoCal
VArchT's Avatar
Quote:
Originally Posted by orectolobus
I recently added a tail brace mod to my machine...
Nice clean mod! My heli's gonna get a set.
Jan 18, 2012, 09:56 AM
Wind you go around in circles
Wind Spirit's Avatar
I guess it's to late because I installed them, but do you use the same stock screws to attach RKH metal upgrades? Still use the carbon main shaft. Holes were not big enough in the Rkh Parts and used the screws to tap it biger. Thanks WS
Jan 18, 2012, 10:01 AM
Wind you go around in circles
Wind Spirit's Avatar
Quote:
Originally Posted by orectolobus
I recently added a tail brace mod to my machine.
Rather than buy some parts for another heli I fabricated mine from
some available stuff. I used some .035 CF rod, electrical connectors
and some heat shrink tubing. It really stiffened the tail boom up and
the helicopter seemed a little more stable... maybe I was just more relaxed.

I used an electrical connector on the boom as well. I was trying to keep the
aft weight down for CG purposes. I spread the wire receptor apart with a needle
nose and expoxied the ends the CF rods in the connector. Filed the blade part
of the connector down to the width of the CF tailboom.... wrapped with thread
and put some black electrical tape over. It's all easy to remove.

Another day... another mod...
Hi, Very Nice mod, I think I will try the same, Only use RHK tail boom clamp and attach the elect. connnectors to it. Thanks for posting your idea. WS
Jan 18, 2012, 10:25 AM
TerryM
orectolobus's Avatar
Quote:
Originally Posted by Wind Spirit
Hi, Very Nice mod, I think I will try the same, Only use RHK tail boom clamp and attach the elect. connnectors to it. Thanks for posting your idea. WS
You can also use a Dubro U-shaped landing gear strap....


I used one of these first but eliminated the two strews and strap to help with CG.
A few options all for the same purpose... stiffen the tail boom.
Jan 18, 2012, 03:51 PM
100k parts vibrating in unison
Helohead's Avatar

Solid CF Main Rotor Shaft


Well I decided to make my own Solid CF Main Rotor Shaft, and I learned a lot in the process. I had to blue-print the stock and aftermarket parts and as I assumed, I found what I believe is a problem with the Microheli Aluminum Main Shaft, the holes are too big!

Ever notice when you assemble a Microheli CNC Anti-Rotation Collar (MHE120SR002A) with the Aluminum Main Shaft (MHE120SR066) the Anti-Rotation Collar has rotational play in it? Then we wonder where the TBE came from!

The holes in the Blade/HH Carbon Fiber Main Shaft (BLH3107) are 0.055” Dia. Corresponding to a #54 drill. Based on the screws used this is correct for 50% thread engagement which is correct for materials which may be easily split like CF.

It looks like Microheli blue printed Blade/HH’s part exactly without correcting for hole size with the different material. In soft metal like aluminum you use 75% thread engagement which corresponds to a smaller hole, 0.052” Dia. #55 drill.

It is possible that Microheli tried the smaller hole and found it too hard to install the screw; I don’t know I haven’t tried it myself, but the screw should go in fine.

So what does all this crap really mean? To eliminate TBE, stick with the Blade/HH Carbon Fiber Main Shaft (BLH3107)!

As for my own Solid CF Main Rotor Shaft, No TBE! And it should last the life of the helo although it was a pain in the butt to manufacture.

Randy
Jan 18, 2012, 05:12 PM
Registered User

alum shaft


I also ran into some problems with the alum shafts, they are .0015 - .002 smaller in dia than the CF shaft. After installing the alum shaft I kept breaking the plastics parts attatched to it. Many broke without any type of crashing. That is when I looked more carefully into the fit of the plastic pcs to the alum shaft. If you are upgrading all your parts to alum then you might be OK, but mixing the alum shafts with the plastic parts will cause the plastic to break more readily due to the extra play. Also more slop in the bearings as they are designed for a larger dia shaft. I went back to the CF shaft and have not broken any plastic parts even after crashing. If you find your CF shaft splits/cracks, it can be repaired.... drop some CA glue into the hollow center then carefully spread open the crack to allow the CA to enter. Close the crack, mabey even add some more CA glue and let it dry overnite. Lightly sand the OD till the plastic just fits (snuggly) re-drill the holes for the screws and your ready to go. My repaired shafts fly perfectly.
Good Flyin

Airshot
Jan 18, 2012, 05:31 PM
Look ma, no hands!
1Pilgrim's Avatar
Quote:
Originally Posted by Kurt
Nice flying and the video is pretty good quality!
Have you posted pics up of the canopy and cam mount?
I see you're in Sheboygan - man I've got to get up there soon to Il Ritrovo, I LOVE their pizza and it's the only place I know of to get guanciale (Italian cured pork cheeks)
Hope you were out flying today, we may not see 40F again for a few months!!!
cheers
Kurt
Milwaukee
Hey Kurt, check your pm's


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