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Old Sep 18, 2010, 11:10 PM
Yes, I know it's upside down.
Sydney, Australia
Joined Dec 2008
3,299 Posts
Quote:
Originally Posted by sandos View Post
What would cause massive amounts of wag in rate mode, but not HH mode?
Weird, I have the exact opposite problem. Wagging in HH, but not in Rate. Although for me the wag is only when I pick up speed in a dive, such as in the downline run after a stall turn.
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Old Sep 19, 2010, 06:05 AM
AMA # 949551
rikybob's Avatar
USA, FL, Orlando
Joined Oct 2009
2,067 Posts
There may be something that you haven't considered.

Have you tried the duckweight?

b
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Old Sep 19, 2010, 07:10 AM
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vinay2070's Avatar
India, KA, Bangalore
Joined Sep 2009
581 Posts
Quote:
Originally Posted by Harrow View Post
Weird, I have the exact opposite problem. Wagging in HH, but not in Rate. Although for me the wag is only when I pick up speed in a dive, such as in the downline run after a stall turn.
Check the vibrations where the gyro is mounted.
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Old Sep 19, 2010, 11:08 AM
Registered User
Sweden
Joined Jan 2010
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Quote:
Originally Posted by rikybob View Post
There may be something that you haven't considered.

Have you tried the duckweight?

b
Uh, what is that? Same thing as, or related to chinese weight mod? I do have "extra long" screws through the blades, I thought it should atleast even it out a bit.
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Old Sep 19, 2010, 11:19 AM
AMA # 949551
rikybob's Avatar
USA, FL, Orlando
Joined Oct 2009
2,067 Posts
Quote:
Originally Posted by sandos View Post
Uh, what is that? Same thing as, or related to chinese weight mod? I do have "extra long" screws through the blades, I thought it should atleast even it out a bit.

Check Friday the 1st. I love that old bit from the Three Stooges.

Sorry!

b

(Crickets)

oh well
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Last edited by rikybob; Sep 20, 2010 at 06:13 AM.
Old Sep 20, 2010, 05:03 AM
Yes, I know it's upside down.
Sydney, Australia
Joined Dec 2008
3,299 Posts
Quote:
Originally Posted by vinay2070 View Post
Check the vibrations where the gyro is mounted.
Hmm, is it possible to have TOO much foam. I put three layers. And why only in HH. ??
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Old Sep 20, 2010, 05:50 AM
Sippin the Koolaid!
losifanatic's Avatar
United States, NC, Hertford
Joined Oct 2007
16,394 Posts
Yeah you can have to much . Play around with it and see if that helps
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Old Sep 21, 2010, 04:40 PM
master of the universe
captaingeek's Avatar
USA, CA, Novato
Joined Jul 2008
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im working on a scale md500 http://www.hobbyking.com/hobbycity/s...dProduct=10111 build. has anyone else done this build? running a turnigy typhoon 3550 motor. im going to adjust the throttle and pitch curves for scale flying.
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Old Sep 22, 2010, 02:46 AM
Registered User
Australia
Joined Jul 2008
1,311 Posts
is there such thing as hands off hover for 450 sized helis ?
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Old Sep 22, 2010, 02:53 AM
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pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
6,627 Posts
it can and it has been done, on a still day, with the right set up.
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Old Sep 22, 2010, 03:01 AM
Registered User
Sweden
Joined Jan 2010
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It would likely help with a flybarless system, but it will not give unlimited stability. Otoh, neither does any other size helicopter without a stabilization system? Its just a matter of timescale, a 700 might be a more stable than a 450, but still not inherently stable.
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Old Sep 22, 2010, 04:10 AM
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pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
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Well I have the 4#3b, and the 4g3, and I have finally modified both of them that they almost hover like my bmcx. almost 8 seconds with out stick input. Now they are both small birds, with suicidal tendencies. Now that I have modified them, it's as if they are on prozac.

Oh and wade1 it will take months to dial in such a bird. I'm assuming you just started in the hobby? Everything must be set precisely. But doing that can be meticulous, but it pays off though. You get more time learning how to fly, rather than trying to get your bird to do what it's supposed to do..
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Old Sep 22, 2010, 04:15 AM
Registered User
Sweden
Joined Jan 2010
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I've managed maybe 5 seconds tops on my 450, but that was actually before I had a swash leveler
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Old Sep 22, 2010, 04:37 AM
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pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
6,627 Posts
Quote:
Originally Posted by sandos View Post
I've managed maybe 5 seconds tops on my 450, but that was actually before I had a swash leveler
That's really good for an HK 450. Is that the plastic version? Did you modify any thing? atm I'm trying to get my hk250 to behave it's tail. The gyro is really cheap and nasty, it's got this twitching condition. Hey is it me or do you think I have a bent feathering shaft on my hk450 plastic version? It's one of the very first one that came out.
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Old Sep 22, 2010, 04:38 AM
Registered User
Australia
Joined Jul 2008
1,311 Posts
I am fairly new to 450s and having trouble holding a steady hover. I am always having to hold elevator stick down a bit and a bit of right cyclic. but whe cog seems pretty good when I hold it by the fly bar.

Also, what would cause the tail to slightly jerk a bit ? just randomly the tail looks like it jerks a small amount. nothing major. could gusts of wind cause this ?



Quote:
Originally Posted by pitchp View Post
Well I have the 4#3b, and the 4g3, and I have finally modified both of them that they almost hover like my bmcx. almost 8 seconds with out stick input. Now they are both small birds, with suicidal tendencies. Now that I have modified them, it's as if they are on prozac.

Oh and wade1 it will take months to dial in such a bird. I'm assuming you just started in the hobby? Everything must be set precisely. But doing that can be meticulous, but it pays off though. You get more time learning how to fly, rather than trying to get your bird to do what it's supposed to do..
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