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Heli Wholesaler . 3D Heli Depot . JR-Spektrum

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Align T-REX 600N 700N > 600N Frame Flex
 
 
hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Quote 
Hootowl, When you have a little more experience in the aircraft industry you will realise that carbon will not form a stress crack, so as time passes nothing on the heli will change due to frame flex. 17 years as an airframe tech.

Been in manufacturing all my life. 10 years of it at Boeing with a major part of that time involved with 767, 777 fixed leading edge manufacture (much of which is composites) and the V-22 Osprey of which is mainly carbon fiber.

Composites can delaminate when subjected to continuous vibration induced flexing. I shouldn't have said "crack". Yes, the composites can take an awful lot of shaking and not be effected.

What type of airframes do you work on?


r/chelisrme,

There is a difference in power available with this mod. I'm not just saying this, I am experiencing it. All axial loads now run on properly raced thrust bearings instead of bearings designed for radial loads. They are 10mm. I got them here or you can find them at Ricks.

No it's not possible that my thrust bearing mod is causing more flexing. The original bearings are still there.

Those new Align metal bearing blocks look great. Looks like they have a retainer for the bearings instead of using a locktited press fit. See the four screws?

These would be a nice addition to my thrust bearing mod. The thrust bearing would be sitting on a nice flat metal surface instead of a split between two plastic halves.

Member Bog Troll Club #1
08-11-2007 Over year old.
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WJackson
Key Veteran
Location: Smyrna, Delaware

Quote 
Hootowl, When you have a little more experience in the aircraft industry
Now thats FUNNY!!!!!!
So how many more years experience you even got in ya Mike?! You might be dead before you really know what your doing!

Bill Jackson
08-11-2007 Over year old.
 
 
dannyh5
Senior Heliman
Location: England

I’m more than confident I'll re-kit it before it has chance to delaminate. Although I will not be carrying out any NDT (non destructive testing) to find out if it has, as any de-lam (cracks) will not be visible anyway. Harrier GR7 (AV8B) started on airframes when I was 17.
08-11-2007 Over year old.
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WJackson
Key Veteran
Location: Smyrna, Delaware

So whos on the same page talking about the g-10 frames?

Bill Jackson
08-11-2007 Over year old.
 
 
1UP
Key Veteran
Location: Claymont DE.

Bill Jackson has first hand experience in G-10 repair

JAMES
member of the HOT GIRLS thread
If it's worth doing, then it's worth over doing
08-11-2007 Over year old.
 
 
tauscnc
Veteran
Location: IL : www.cuttingedgecnc.c om

How is it that the "pros" can fly the crap out of these helis and the rest of us 99% fliers find all of the flexing and flaws in the designs? Worried about how this might fail or how this next new metal upgrade will fix this or that. Performance increases with metal upgrades or that .02 sec faster servos, come on.

Just freaking fly the heli It flies just fine and I am sure your main blades flex more than the frame in the air.

You can keep finding all of the things to tinker and try to "fix" but just watch the videos of the heli, it can handle the shake rattle and roll

taus
08-11-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

tauscnc,

I agree. The question was good though and it brings out ideas.

Keep in mind it's the pros that find the issues and often are the first ones to get their hands on the upgrades, or develop them themselves.

Member Bog Troll Club #1
08-11-2007 Over year old.
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702nitro
Key Veteran
Location: Las Vegas, NV

Good point tauscnc!

Vibe Fiddy
Atom 111110100
Trex 1001011000n
08-11-2007 Over year old.
 
 
WJackson
Key Veteran
Location: Smyrna, Delaware

Got the extra frame set , but the repairs still holding strong !
BTW- James hows IRCHA, havent seen pics of you yet , ya hiding?
Saw Steves mug today, grinnin' ear to ear!. Wish I was there!

Bill Jackson
08-11-2007 Over year old.
 
 
DS 8717
rrProfessor
Location: Here wishing i was somewhere else

I can't see where the metal main bearing blocks will fix any frame flex,the frames flex in front of the blocks. If you want to bling the heli out,just bling it you dont need any excuse to do it. I can see some 8 pound 600's on the way.
08-11-2007 Over year old.
 
 
hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Flew alot today. Love this thing
Metal blocks won't do anything for the flexing. They have the same footprint against the frames.

I don't think this heli has a problem.

Member Bog Troll Club #1
08-12-2007 Over year old.
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jaxrotor
Key Veteran
Location: Jacksonville FL

yes it does..no it dont..uuuuhhhhh
08-12-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Call me stupid I don't care. This heli rocks.

Member Bog Troll Club #1
08-12-2007 Over year old.
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jaxrotor
Key Veteran
Location: Jacksonville FL

stupid..naw...confused..maybe....cant wait to see what you come up with next

Your right the heli ROCKS!!
08-12-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Workin on it

Flew 4 tanks today. Can't find any problems... looking hard

Member Bog Troll Club #1
08-12-2007 Over year old.
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jaxrotor
Key Veteran
Location: Jacksonville FL

Hey Hoot,I had a fly bar break at the start of the threads today on a Basic Standard Sport 600N 3d Pro today. Found the paddle and the threaded part of the flybar was still in the paddle.
08-12-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Gary Jenkins had the exact same thing happen to him today at our field with his 450 SA

It was a crash though

Member Bog Troll Club #1
08-12-2007 Over year old.
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jaxrotor
Key Veteran
Location: Jacksonville FL

Hey I meant to ask you..are you using two of those thrust bearings? I was wondering what the thickness of the bearing,because a bearing could be put between the auto bearing and the bottom bearing.you wouldnt need the collar on top under the swash. What ya think?
08-12-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Yea I'm using one under the top bearing block and one above the middle bearing block.

Good idea except the thrust is pretty thick... like 5mm (3 parts)

That would move the gear a lot. Have to look

Member Bog Troll Club #1
08-12-2007 Over year old.
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hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Just looked.

The only way something like that would work is if you mod the middle bearing block so it sits higher. If you didn't, the gear set would move down, interfere with the tail output gear and you would lose some pitch.

Member Bog Troll Club #1
08-12-2007 Over year old.
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3 pages [ <<    <     1      2     ( 3 )    >    >> ]1474 viewsPOST REPLY
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Align T-REX 600N 700N > 600N Frame Flex
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