RunRyder RC
WATCH
 1 page 1010 views Post Reply
Home✈️Aircraft🚁Helicoptere-AlignT-REX 450 › Aligns new strong main shafts
08-05-2007 02:34 AM  13 years ago
Topic Vote0Post 1
hotgluedheli

rrApprentice

USA

MyPosts All Forum Topic
Aligns new strong main shafts
I have been using them recently and they are much stronger and crash resistant then the standard ones. I have crashed mutiple times the last one just today that shattered my fiber blades which are also very strong. Got to close to our fence and hit the steel pole, blades at max hs which for me is around 2500 rpm. The main shaft is still straight. A regular shaft would definitely been bent as would be the standeard feathering shaft. My crashes aren't pile drivers so I don't know how things would hold up in those major crashes but so far so good. I'm really happy align upgraded the spindle to 4 mm and have now have upgraded the main shaft to hardened steel because it has really made a difference. Just thought I would share my experiences.
I crash therefore I am
SHARE  PM  EMAIL  Attn:RR  Quote
08-05-2007 05:56 AM  13 years ago
turboomni

rrProfessor

East of the Equator

MyPosts All Forum Topic
I would rather a main shaft and spindle bend before anything else down the line. I want cheap parts to sacrifice themselves first before the inner guts. blades of course are the big sacrifice first but if carbon and you are lucky wont break and the spindle and mainshaft let go and die before other parts. Just my thoughts is all.Setup is everything, All my heli's can fly far better than I can pilot them
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2007 11:25 AM  13 years ago
TomRex

rrElite Veteran

West Palm Beach Join Date: 12-28-2005

MyPosts All Forum Topic
The new mains have the logo stamped on them. The best part of the hardened shafts is they don't bend on rough landings like the old ones did! Please don't count crashes.Ignorance is the absence of facts.Stupid is lacking the intellectual capacity to comprehend the fact
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-07-2007 01:00 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
The best part of the hardened shafts is they don't bend on rough landings like the old ones did!
I never had a problem with the "non hardened shaft on any kind of landing other than unintended...

you musta gotten a batch of softer shafts.

Id much rather sacrifice the 2 dollar shaft and 1 dollar spindle than a frame side or sides...
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2007 03:01 PM  13 years ago
helibird

rrKey Veteran

St. George, UT

MyPosts All Forum Topic
That force has got to go somewhere. I would think with the thicker spindles and main shafts our bearings are going to suffer. Did you check your main bearings?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2007 04:02 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
The bearings will only transmit the loads into thier support structure, ie, the frame...

over time and repeated crashes and abuse and wear, the bearings will certainly crap out but just upgrading to hardened parts wont hurt the bearings.
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2007 04:26 PM  13 years ago
helibird

rrKey Veteran

St. George, UT

MyPosts All Forum Topic
Yah I was talking about in a crash instead of the main shaft bending it will notch the balls in the bearings.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2007 04:46 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
it will notch the balls in the bearings.
possibly but id put money on no.

More than likely, the bearings will transfer load to it's support structure. Afterall, that is what bearings do, transfer loads with minimal friction and wear.

Perhaps Align bearings would get notched? Afterall, not all bearings are created equal...
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 08:08 AM  13 years ago
hotgluedheli

rrApprentice

USA

MyPosts All Forum Topic
I understand the belief that something must "give" to protect other parts but so far I am amazed at having crashed many times with these new shafts and they are still staight. And nothing else has broken so far. I have my main gear mounted with the "toothpick" method so that it breaks free in a crash. And with the strong metal gear hs65 servos with my modified links to absorb shock I don't have any problem with the servos. Now I can concentrate more on flying better and less on repairing which is always good for my wallet I crash therefore I am
SHARE  PM  EMAIL  Attn:RR  Quote
08-08-2007 08:15 AM  13 years ago
Spinky

rrApprentice

PETERBOROUGH UK

MyPosts All Forum Topic
Whats the tooth pick method?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 08:23 AM  13 years ago
LouInSD

rrVeteran

San Diego CA USA

MyPosts All Forum Topic
The new main shafts are great. Normally every crash no matter how minor would bend the main. It takes a serious impact to bend them.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 09:43 AM  13 years ago
hotgluedheli

rrApprentice

USA

MyPosts All Forum Topic
spinky... believe it or not I use the tips of a toothpick to hold the main gear to the hub instead of the screws, so that in a crash the main gear breaks free intead of it breaking teeth. This protects the gear, oneway bearing and motor shaft. This won't work with the new align hub. I'm using the helidirect hdx main gear and hub. Since the main gear is sandwiched between the hub and a backing plate I can twist the toothpick into the treads of the hub which keeps the toothpick tip from falling out and the gear breaking lose in flight. I only use two screw holes to secure the main gear, I found that using more then that can still break gear teeth. I've been flying around like this with no problems. When I crash I just reattach the gear with a single toothpick. A Lot cheaper then replacing gears.I crash therefore I am
SHARE  PM  EMAIL  Attn:RR  Quote
08-08-2007 12:26 PM  13 years ago
TomRex

rrElite Veteran

West Palm Beach Join Date: 12-28-2005

MyPosts All Forum Topic
Krips! I'd shear that off in a heart beat!Ignorance is the absence of facts.Stupid is lacking the intellectual capacity to comprehend the fact
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-08-2007 12:56 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
one day youll be back asking us why your rotor head departed the airframe.

you definitely wont want to be doing that after you progress a bit. Im assuming you are still hovering or performing slow forward flight at best.

the "toothpick" method you have described is just downright not safe!

They call that bolt that holds the main gear to the main shaft a Jesus Bolt. It's apptly named cause by Jesus, if it comes out your gonna have a bad flight...
A Lot cheaper then replacing gears.
For a few bucks (6 or 7) for three main gears, you are not only risking your heli more than you think but also anyone else around it while flying, including you!
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 03:14 PM  13 years ago
helibird

rrKey Veteran

St. George, UT

MyPosts All Forum Topic
2500-3000 rpm held on with a toothpick = bad idea
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 04:41 PM  13 years ago
jh4db536

rrApprentice

Monterey Park, California

MyPosts All Forum Topic
what if they made plastic grips that would work with the 4mm feather shaft? sell them in 4 packs like the old style.
SHARE  PM  EMAIL  Attn:RR  Quote
08-08-2007 05:03 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
2500-3000 rpm held on with a toothpick
Its not the rpm and resultant forces held by the toothpick but rather the thrust of the rotor disk held by the toothpick...

Either way, a BAD idea.
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2007 05:37 PM  13 years ago
hotgluedheli

rrApprentice

USA

MyPosts All Forum Topic
one day youll be back asking us why your rotor head departed the airframe.

you definitely wont want to be doing that after you progress a bit. Im assuming you are still hovering or performing slow forward flight at best.
You are right I mostly do hovering and forward flight right now in a very small area. I did do some loops and flips and fff at around 2500 hs though the other day without any problems. If the toothpick doesn't hold the worse that will happen is it will lose power for the main gear will go free wheeling. The main bolt is still there of course i'm not that crazy
I crash therefore I am
SHARE  PM  EMAIL  Attn:RR  Quote
08-08-2007 05:38 PM  13 years ago
SSN Pru

rrElite Veteran

Taxachusetts

MyPosts All Forum Topic
The main bolt is still there of course i'm not that crazy

you neglected to mention the use of a bolt along with a toothpick as a shear pin...

that sounds a lot safer!
Stupidity can be cured. Ignorance is for life!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1010 views Post Reply
Home✈️Aircraft🚁Helicoptere-AlignT-REX 450 › Aligns new strong main shafts
Print TOPIC

 2  Topic Subscribe

Thursday, September 24 - 2:26 am - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online