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Home✈️Aircraft🚁Helicoptere-Century Radikal E640 - Swift 16 NX › Swift Landing Strut -- are there any other options available?
10-29-2006 04:16 AM  12 years ago
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wrathofkhan

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LA, CA - US

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Swift Landing Strut -- are there any other options available?
I tried out my Swift earlier today, the heli vibrated a bit at certain RPM while spooling up. I have the V3

I was wondering if any of you tried other heli's landing struts -- and did it help with lessening the vibration?

(at a certain RPM, i thought the heli was going to tip over because of the vibration)
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10-29-2006 06:16 AM  12 years ago
TomC

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Gold Coast, Queensland, Australia

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Mate, I use the v3 landing gear and it works great, no wobbles at any headspeed. Assumming your shaft and spindle are straight, maybe check that your main blades are balanced and your paddles/flybar are exactly the same distances between center.

Also, it helps a lot to make sure that your spindle moves completely freely within the main rotor hub. I had to scrap a little of the plastic flashing inside mine with an exacto knife. Early spindle center balls had a bit of metal flashing that needed to be sanded down. Also, lube up the rubber dampers and middle of the spindle with grease.

After doing this I had no wobbles, even with my original v1 gear (which I broke in a big crash and replaced with v3 gear). Another thing I'd check is that all your rotor head ball links are freely moving. If not squeeze them a little, while on the ball till they move freely. Like-wise, make sure your flybar carrier moves up and down freely.

You could go to stronger/heavier landing gear like the Raptor 30 gear. This may appear to wobble less but you may just be masking other problems.

Good Luck & Cheers,

Tom C
Nqx,Mcpx-BL,300x,450x,500x,550x
Ion-x, 10s ,SS
TT X50E 10s, HC3-Sx
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10-29-2006 07:17 AM  12 years ago
cosmic57

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UK

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I had the same thing when I ran mine up for the first time yesterday. V1 gear. Have changed spindle to reinforced, lubed it. Also solid mainshaft.
Wobbles were worse on the spool down than up. Head is balanced OK, links OK.
Will most likely do boom support mod and go from there...
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10-29-2006 07:39 AM  12 years ago
TomC

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Gold Coast, Queensland, Australia

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Cosmic,

In your case I would recommend trying the V3 gear first. They are a lot stronger and a bit shorter than the v1 gear. The additional rear spacers on the v3 help keep the tail blades from digging a trench.

Also, silicon rubber skid stops seem to help a bit as well, esp off hard ground/concrete.

Cheers,

Tom C
Nqx,Mcpx-BL,300x,450x,500x,550x
Ion-x, 10s ,SS
TT X50E 10s, HC3-Sx
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10-29-2006 08:47 AM  12 years ago
cosmic57

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UK

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Yes, it is my intention to change to V3 gear, when somebody in the UK gets stock......
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10-29-2006 04:19 PM  12 years ago
TomC

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Gold Coast, Queensland, Australia

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Hard to believe that the UK does not have v3 gear yet. Been in Oz almost 2 months now. Maybe just order a set from towerhobbies.

Cheers,

TomC
Nqx,Mcpx-BL,300x,450x,500x,550x
Ion-x, 10s ,SS
TT X50E 10s, HC3-Sx
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10-29-2006 04:33 PM  12 years ago
helibob

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White Plains, NY

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Look at my struts in my gallery. From a raptor.Fly Now, Pay Later. Crashing is just a way of not forgetting how it was built.
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10-29-2006 06:00 PM  12 years ago
oldfart

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Vancouver, Canada

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If you are flying off of pavement you will find many helis will oscillate a bit due to "ground resonance" as the rotors come up to speed and the mainblades seek their natural lead/lag position.

On grass this is not an issue.

So if you are flying off of a hard surface, I would suggest that you cut four 1/2 inch lengths of a rubber hose with the appropriate inside diameter and slip one on the back and one on the front of each skid. This should solve the problem for you.
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10-29-2006 08:42 PM  12 years ago
wrathofkhan

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LA, CA - US

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i really appreciate all the help from the RR members.

at my field, there are very few electrics helis (except for t-rex 450s, ofcourse). and no one has even seen a Swift !!!

thank you very much !!!
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10-31-2006 12:32 AM  12 years ago
cosmic57

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UK

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Ordered my V3 gear from Century UK today, they finally had stock.
Will see if this helps...
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Home✈️Aircraft🚁Helicoptere-Century Radikal E640 - Swift 16 NX › Swift Landing Strut -- are there any other options available?
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