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Nov 18, 2009, 12:32 PM
I enjoy the voices
Lead Wings's Avatar
I found the following really helpful when I started with the HK 450 at the beginning of the year (had virtually no heli expereince before that, just fixed wing experience):

Electric heli Beginners guide - good background on heli concepts etc http://www.swashplate.co.uk/html/ehbg.html

Horizon Hobby Align T-rex 450 SA Builders Guide - matches what you get out of the HK450 box pretty much exactly

http://www.e-fliterc.com/ProdInfo/Fi...ARF_Manual.pdf

Finless Bob Videos - lots of great how to info (need to join helifreak) http://www.helifreak.com/showthread.php?t=11373

Ive also attached a locktighting guide and tools guide from a while back that may be of use
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Nov 18, 2009, 12:56 PM
Registered User
MrRetro's Avatar
Anyone have any issues/problems with the HK tail shafts with the plastic pulley? They are not very expensive and come 2 to a package, and BOTH shafts have the pulley installed. The similar CopterX and EXI parts come 3 to a pack but only ONE has the pulley (metal) installed. Since I don't usually have any success in removing that pulley to reinstall on another shaft, I look at is as I only get 1 shaft per pack. So are these any good?
Nov 18, 2009, 04:06 PM
guitarflyer
im using hxt900 servos.should i use the 15.mm lenght from center to ball joint
on the servo horn for hs-65
Nov 18, 2009, 04:20 PM
Registered User
rimshotcopter's Avatar
Be forewarned, the hardware really sucks badly and you will need some REALLY REALLY Good Allen wrenches to work the project.
Nov 18, 2009, 05:06 PM
Registered User
As I understand most radios have a 5 point or more throttle/pitch curve setting.
My radio only has 3 points. Is 3 points ok for the HK450 or should I buy a new radio?
Iím a total newbie to heliís so bear with me.
Nov 18, 2009, 05:12 PM
Registered User
I use the GorillaProof(r) wrenches
Nov 18, 2009, 05:26 PM
Piro-maniac
shizack's Avatar
Quote:
Originally Posted by Foam Planes View Post
As I understand most radios have a 5 point or more throttle/pitch curve setting.
My radio only has 3 points. Is 3 points ok for the HK450 or should I buy a new radio?
Iím a total newbie to heliís so bear with me.
5 point curves are nice, though not strictly a necessity. Until you get good at hovering you probably won't feel too much that needs that intermediate point.

Even now all my curves (5-point) are set so that point 2 is equidistant from points 1 and 3 and point 4 is in the middle of points 3 and 5.

It's nice to have the flexibility to tweak if needed, but I haven't "needed" yet.

What radio do you have?
Nov 18, 2009, 05:50 PM
dze
dze
Registered User
Quote:
Originally Posted by MrRetro View Post
Anyone have any issues/problems with the HK tail shafts with the plastic pulley? They are not very expensive and come 2 to a package, and BOTH shafts have the pulley installed. The similar CopterX and EXI parts come 3 to a pack but only ONE has the pulley (metal) installed. Since I don't usually have any success in removing that pulley to reinstall on another shaft, I look at is as I only get 1 shaft per pack. So are these any good?
on the trex style shaft with an aluminum pully if you support the pully on somthing like a drilled piece of wood, the shaft will drive out fairly easily .. to re-install the pully on another shaft you can use red locktite or ive used jb weld to when installing the pully to a smooth shaft with a cutout relief , and then let it set up overnight. .. if the pully is tight on reinstallation use somthing like a socket that fits over it good and your piece wood again so the shaft tip doesnt get marred and tap it into place nice and slow, and hopefully you have another one to compare it to or remembered to measure how far on it was
Last edited by dze; Nov 18, 2009 at 05:58 PM.
Nov 18, 2009, 06:17 PM
Axes & Blades-Cutlery & Helis
Quote:
Originally Posted by reverendrichie View Post
Be forewarned, the hardware really sucks badly and you will need some REALLY REALLY Good Allen wrenches to work the project.
I bought several align hardware kits, honestly, I like the HK450 screws better, they used Hex heads but the Align had crosspoint screwdriver heads. I used some of both but was impressed with the HK450 hardware. I've heard people complain about this before so not sure if I just got lucky
Nov 18, 2009, 06:28 PM
five by five
sonicj's Avatar
Quote:
Originally Posted by MrRetro View Post
Anyone have any issues/problems with the HK tail shafts with the plastic pulley? They are not very expensive and come 2 to a package, and BOTH shafts have the pulley installed. The similar CopterX and EXI parts come 3 to a pack but only ONE has the pulley (metal) installed. Since I don't usually have any success in removing that pulley to reinstall on another shaft, I look at is as I only get 1 shaft per pack. So are these any good?
i use a pinion puller to remove and a modified c-clamp to re-press. dze's wood method is probably easier on the aluminum.
Nov 18, 2009, 06:33 PM
Dyslexic crash pro!
Quote:
Originally Posted by MrRetro View Post
Anyone have any issues/problems with the HK tail shafts with the plastic pulley? They are not very expensive and come 2 to a package, and BOTH shafts have the pulley installed. The similar CopterX and EXI parts come 3 to a pack but only ONE has the pulley (metal) installed. Since I don't usually have any success in removing that pulley to reinstall on another shaft, I look at is as I only get 1 shaft per pack. So are these any good?
MrRetro,

I had to knurl and locktite the pulley to the tail shaft on my original parts. I was able to spin the tail rotor shaft while holding the main rotor still (and also with the tail drive, jack-shaft (a known problem with the earlier kits)). The shafts I've gotten since then have held pretty well.

You shouldn't have that much of a problem changing the metal pulley over on the other shafts (if you choose to go that way). Just support the pulley with a small deep socket and drive the old shaft out, then press the new shaft in. You can even tap the new shaft in with a hammer if you're careful.

I use an arbor press, but not everyone has one. You can use a drill press too if you have access to one.

/Dave
Nov 18, 2009, 06:57 PM
What package dear?
Hellysmack's Avatar
Quote:
Originally Posted by ewoodcox View Post
I bought several align hardware kits, honestly, I like the HK450 screws better, they used Hex heads but the Align had crosspoint screwdriver heads. I used some of both but was impressed with the HK450 hardware. I've heard people complain about this before so not sure if I just got lucky
Me too
I think it depends a lot on your tools, and making sure hex driver is fully in. I have no problem.
Nov 18, 2009, 07:12 PM
I don't want to "Switch Now"
pmackenzie's Avatar
Quote:
Originally Posted by MrRetro View Post
Anyone have any issues/problems with the HK tail shafts with the plastic pulley?

I have not had any problems with the stock tail shaft/plastic pulley.

Pat MacKenzie
Nov 18, 2009, 07:17 PM
Registered User
rimshotcopter's Avatar
Quote:
Originally Posted by ewoodcox View Post
I bought several align hardware kits, honestly, I like the HK450 screws better, they used Hex heads but the Align had crosspoint screwdriver heads. I used some of both but was impressed with the HK450 hardware. I've heard people complain about this before so not sure if I just got lucky
What is the name brand of your hex head wrenches? I need to purchase a set.
Nov 18, 2009, 07:21 PM
Gone Flying.
ChrisWNY's Avatar
The Dynamite hex drivers are top notch, I have a set of them (1.5mm, 2.0mm, and 2.5mm), shafts are hardened steel and interchangeable in case they ever wear. You can find them on eBay at reduced prices. I use them frequently on all 450 hex head screws. No issues with stripping.

http://www.dynamiterc.com/Products/D...ProdID=DYN2904


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