Flipping The Grips

[Jim Hansen]

Is there a post on flipping the grips , or blade holder
On a 450 Pro?

[jshqSeGH]

Finless Bob did a video on it:

http://video.helifreak.com/?subpath=...name=mymod.wmv

You might want to check if it's going to help first though - some 450's seem to have an improved tail geometry where it doesn't make any difference (measure the distance from the bearing to the slider when the pitch is at zero; if it's exactly 1/2 the distance when the slider is all the way to the right then it's a waste of time doing it).

If you do do it be sure to sort the electronics before you fly it or it'll spin violently when you spool up.

Another mod is what Patrick from KDE calls the "dremel mod" where you move the flat spot on the shaft a little closer to the end to get more pitch.

[Jim Hansen]

Thank you I guess I should have specified?
Main rotor

[helicray]

align has made amends to that, they sell some shorter links IIRC to fix this issue

[jshqSeGH]

Originally Posted by Jim Hansen

Thank you I guess I should have specified?
Main rotor

Umm - why on earth would you want to flip the main rotor grips?

[helicray]

main rotor? I thought he was talking about the finless bob flipping the grips thing. main rotor???

[jshqSeGH]

Originally Posted by helicray

main rotor? I thought he was talking about the finless bob flipping the grips thing. main rotor???

Me too - but that's not what he's come back with.

Something not adding up by a long shot here.

[DoubleCH]

I don't know why OP wants to flip main blade grips wither. But in reply to following comment:

Originally Posted by helicray

align has made amends to that, they sell some shorter links IIRC to fix this issue

The shorter pitch linkages don't really fix the problem. They just shift the pitch range by reducing left rudder pitch in order to gain back right rudder pitch. Besides, the max right rudder pitch (old left rudder pitch) is now limited by slider bridge touching tail hub which means it's no more than ~32* which is still insufficient for fast funnels and other hard 3D maneuvers (you need close to 40* or more). Forget about the flip-grip mod altogether. Do the dremel mod instead which will fix the problem of insufficient pitch range better.

[numbermonkey]

doesn't flipping the main grips change from leading edge to trailing and vice versa?

[DoubleCH]

Yeah but why?

[Jim Hansen]

Here were the idea comes from as you can see
In the photo the pitch change is not leading.
To me it makes since that it would be tailing and not
Leading.

I have not check other models to see if they are
Set up this way? Also had to reverse the collective.
So when you move the stick up the swash plate
Goes down.

[jshqSeGH]

I just can't see any advantage; seems like a lot of mucking around to achieve something that's probably 6 of one, and a 1/2 dozen of the other.

The "real things" don't have to worry about fully symmetrical pitch ranges either.

[numbermonkey]

Originally Posted by numbermonkey

doesn't flipping the main grips change from leading edge to trailing and vice versa?

Originally Posted by DoubleCH

Yeah but why?

Originally Posted by jshqSeGH

I just can't see any advantage; seems like a lot of mucking around to achieve something that's probably 6 of one, and a 1/2 dozen of the other.

so I did a bit of research and DoubleCH & jshqSeGH are spot on - makes near as no difference whether you have leading or trailing edge control. If it's a scale look you are going for then make the effort but no need to change for systemic or control reasons.

[Jim Hansen]

My purpose is in a crash hopefully it will cause less damage that's my only reason.
when i converted to DFC it took out the servos so i went back FL grips and then i seen that the grips would go ether way. So i will see if it works for me.
Thanks.

[jshqSeGH]

Originally Posted by Jim Hansen

My purpose is in a crash hopefully it will cause less damage that's my only reason.
when i converted to DFC it took out the servos so i went back FL grips and then i seen that the grips would go ether way. So i will see if it works for me.
Thanks.

My servo gears used to get absolutely hammered in a crash (or even just a good bounce) (I literally went through dozens of Align gear sets). Two things cured the problem:

1. I changed to the Gorilla landing skid:

http://www.amain.com/product_info.ph...k-Trex-450-Pro

I got them for the "indestructable" aspect, but the the shock-absorbing quality is nothing short of amazing. About a zillion times better than the Align product - and it looks the same!

2. I switched to the expensive MKS DS95 servos.

Since then I've only had to change 1 set of gears as a result of a crash.

The MKS DS 95 will be the only servo I ever use in a 450 now.

Hope this helps.

[DoubleCH]

I run TGY-S306G-HV cyclic servos (metal gears) with my 450DFC and out of hundreds of flights and a handful of crash (including high-speed and high-drop ones) and tip-overs combined, only 1 full-HS tipover at take-off broke a servo gear. Even then, it's just $6 for a gear set at my LHS. I'm OK with the DFC head. I like its precision over regular head.

[Jim Hansen]

Thanks guys, I have the gorilla gear. And I just replaced my servo
With Align 450M also I am trying the mini vbar. My pro Started out as a Fly bar in 2010 to
FBL to DFC now back to FL.
Thanks for your help.