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HelicopterMain Discussion › Landing Struts / Gears (Why lean back?)
11-26-2006 02:48 AM  11 years agoPost 1
asong26

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VA

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I saw a heli today and it's landing gears were leaning forward. So, naturally I said, "You do realize that your landing gears are on backwards" His reply to me was, "I bought them, I can do whatever I want to do with them. Besides, they look cooler this way. It makes the heli look like it's speeding forward" And you know what? He is right!

And this got me thinking, why do manufacturers instruct us to put the landing gear in the 'leaning back' orientation? What's the advantage? I mean, as long as your skids are set up correctly, should it matter? Is there a strong reason as to why the skids can't lean forward?

Andrew

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11-26-2006 02:57 AM  11 years agoPost 2
racer944

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Greely, Ontario - Canada

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I assume you mean the landing struts are closer to the nose of the heli at the top than at the bottom where the skids are attached.

If so, then in some cases, depending on the heli and how the gear is built, the "lean forward" method can be used to gain height on the rear mount and therefore increase tail rotor clearance.

Otherwise its mostly for looks... There are full scale helis in service with both designs (and many other variations too).

Eric

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11-26-2006 02:57 AM  11 years agoPost 3
gftazz

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upstate N.Y. in the Adirondacks

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Sometimes better the other way around on some helis.
OR move the skids themselves so they stick out more from the rear of the rear skids. This helps prevent the heli from squatting down so much in the rear so the tail doesn't dig in and it helps with sitting more level and it helps with auto's and the landings so as not to dog in the tail.

Tom

Oh No Someone Please Stop Me Before I Go Broke With This Heli Thing!!

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11-26-2006 03:03 AM  11 years agoPost 4
asong26

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VA

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racer944: Yes that's what I meant. In my case, the heli is rear heavy (when the fuel is low). I think I am going to reverse it so that the struts are leaning forward. To me, and for my model this makes a lot more sense than having the struts lean backwards. If I need more support towards the front of the heli, I can always compensate using the skids (move it more forward). And personally I think it makes it look a lot better.

Andrew

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11-26-2006 03:14 AM  11 years agoPost 5
asong26

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VA

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gfazz: That's make a lot of sense as well from autos stand point.

I am definitely leaning me struts towards the front.

Andrew

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11-26-2006 03:23 PM  11 years agoPost 6
ch53e

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Forest, Virginia / So. Cal. Native

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I have mine going both ways. I have a 60 size set of gear on my 50.

Align Trex 450SE
Align Trex 600CF
TwinnRexx

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11-26-2006 03:47 PM  11 years agoPost 7
asong26

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VA

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This landing strut direction specified by the manufacturers are beginning to sound like a conspiracy. You know, like the digits that follow the zip code, or how we were told to brush our teeth up and down motion when we were kids (that depends on how old you are I guess...)

Andrew

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11-26-2006 03:51 PM  11 years agoPost 8
da_man

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Central NC

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When the skids lean foward the heli tends to go backwards and rest on the tail when the blades are folded.

I tilt them foward. They look nicer.

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11-26-2006 04:08 PM  11 years agoPost 9
Graeme R H

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Berkshire UK

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The heli will only lean back on the tail if the amount of skid pipe at the back allows it to.

Why fly the rest when you can fly the best. What are the best these days anyway ?

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11-26-2006 04:27 PM  11 years agoPost 10
asong26

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VA

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The heli will only lean back on the tail if the amount of skid pipe at the back allows it to.
This is what I believe as well. I believe it's in the adjust of the skids the control the lean of the heli, unless of course, your heli is perfectly balanced.
When the skids lean foward the heli tends to go backwards and rest on the tail when the blades are folded.
da man: This is strange. if you the struts are leaning forward, why would the heli lean backwards, unless you keep your skids very short on the rear...

Andrew

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11-26-2006 04:30 PM  11 years agoPost 11
Al Austria

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Gainesville, FL

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You do realize that it couldn't matter less since the gear is only useful when you're on the ground right?

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11-26-2006 04:35 PM  11 years agoPost 12
asong26

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VA

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Duh!

But hey, come to think of it, may be it does matter. We'll need to put it through the wind tunnel to test this.

Andrew

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11-26-2006 04:41 PM  11 years agoPost 13
Maxists The Baddist

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Pa

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I have mine on like ch53e so when my blades are in the holder my helis doesn't tip back. As for flying, It just looks cooler.

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11-26-2006 05:00 PM  11 years agoPost 14
carlyle

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Stratford, Ontario, Canada

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I also keep mine running in both dirrections... The front one faces forward, the back one faces back.

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11-26-2006 05:12 PM  11 years agoPost 15
asong26

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VA

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I am going to try the front facing first, to see how well that works out, if not, I'll consider dual front and back facing. Currently my heli struts face the back (leans back looking at it from the side). My heli always tries to tip backwards when they on a blade holder.

Andrew

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11-26-2006 05:29 PM  11 years agoPost 16
AirWolfRC

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42½ N, 83½ W

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I may just try that 50/50 arrangement.

Following the manual, with the blades folded and in the holder, the heli CG is further back and it wants to lean on the tail fin. I have been installing my Raptor skids the other way 'round. The disadvantage is I always have to sand down the center of the front strut to properly fit the canopy clip when replacing a front strut.

By going 50/50 (reversing the rear one only) I won't have to sand any more and the heli won't be tail heavy in the transport position any more.

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11-26-2006 08:55 PM  11 years agoPost 17
asong26

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VA

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Hmmm... I wonder if I would have to do any sanding on the predator... Or is this just something specific to the raptors?

Andrew

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11-27-2006 12:00 AM  11 years agoPost 18
PaulJC

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Hertfordshire UK

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I would imagine they point forwards to accept the shock involved with a landing while still in forward motion

Re-entering the atmosphere...

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11-27-2006 01:26 AM  11 years agoPost 19
asong26

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VA

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Paul,

Do you mean backwards? Or do you mean the bottom of the strut?

Andrew

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11-27-2006 01:40 AM  11 years agoPost 20
ch53e

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Forest, Virginia / So. Cal. Native

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asong26, I didn't notice your location ... were you at the funfly yesterday at RIVANNA RC? ... I was there with my dual direction skids. I wasn't flying it thou ... I was flying my Trex 600CF.

Align Trex 450SE
Align Trex 600CF
TwinnRexx

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HelicopterMain Discussion › Landing Struts / Gears (Why lean back?)
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