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Other › sub trim ?
02-11-2006 01:47 PM  12 years agoPost 1
ljb3

rrNovice

lawrenceville nj

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I have a trex se
with 35 amp esc
align 430L
3 hs 56 on swash and gy401 on tail with digital servo
325 woodies
9chps tx
finally calm the wag but noticed after liftoff that it would drop so upped the throttle curve to compensate noticed it wanted to keep yawing left so used the sub trim to compensate i was just wondering if it is actually possible to set for hands free hover at least on start or that asking too much

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02-11-2006 01:58 PM  12 years agoPost 2
lbowen

rrApprentice

York S. Carolina-USA

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Standing on a basketball is probably possible but not for long - it is possible to get a no input hover in zero wind for a moment - but helis are dynamicly not in equilibrium - which is to say stuff is changing and inputs are needed to stop or alter that. It is possible to have a very stable machine which with no wind needs only the slightest input to hold altitude and position - that is a goal and satisfaction level of excellent parts and SETUP. YOU CAN DO IT! Your SE/radio/gyro/servos are the right stuff to get there - you will love it!

lbowen

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02-11-2006 02:31 PM  12 years agoPost 3
BarracudaHockey

rrMaster

Jacksonville FL

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No sub trim on the 401

Andy
AMA 77227
http://www.jaxrc.com

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02-11-2006 02:43 PM  12 years agoPost 4
Gary Hoorn

rrKey Veteran

Annapolis Maryland USA

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used the sub trim to compensate
If you are attempting to use the 401 in Heading Hold Mode you should not be using any trim, sub-trim or regular! A Heli, especially a small Heli, is not going to just sit there in the air and wait for you to give it a command, it has to be flown. It will wander off on its own very quickly. A properly trimmed TRex may sit in one spot briefly on a dead calm day but if nothing else will fall through its own downwash after a few seconds. You have to learn to sense and anticipate the bird. Keep practicing and use your Sim as well.
Gary

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02-11-2006 02:51 PM  12 years agoPost 5
ljb3

rrNovice

lawrenceville nj

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thank you for your input iwas just out trying a hover. i love this thing just took out two servo gears in one little mishap it does wander quick

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02-11-2006 02:53 PM  12 years agoPost 6
ljb3

rrNovice

lawrenceville nj

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also no trim on gyro just gain and rod adjustment

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02-11-2006 03:03 PM  12 years agoPost 7
Pistol Pete

rrProfessor

Seffner, FL

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if you have to adjust to much trim then re-check set up.

~~Enjoying the hobby one flight at a time~~

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02-11-2006 07:35 PM  12 years agoPost 8
averen

rrVeteran

Austin, TX

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This has been mentioned in some other posts...but is worth mentioning here again

If you keep yawing to the left in HH then you generally need to redo your linkage.

Start in Rate mode (non-HH) and keep adjusting the linkage until you have a pretty stable tail. Then flip into HH and adjust the gain until you stop turning or stop wagging.

That should probably take care of the tail issue...also make sure that your tail movement is smooth...on my CDE it wasn't and needed some assistance to get it there.

Jared

Knowledge is Power, Power Corrupts, Study Hard...Be EVIL!

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