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Home✈️Aircraft🚁HelicopterHenseleit 3DNT - Rocket - 3DMP › SWASHPLATE TRAVEL 3DNT
01-14-2006 12:46 PM  13 years ago
3DPP

rrApprentice

Vienna/Austria

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Hi Janis
Rocket'roll
thats rock
br peter
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01-14-2006 02:53 PM  13 years ago
rotor- shark

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uk

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what is a v-stabi?all comments are my opinion only!
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01-15-2006 07:00 PM  13 years ago
Krunder

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Denmark

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http://www.vstabi.de/

Hi Janis

Likes your new username
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01-15-2006 07:10 PM  13 years ago
rotor- shark

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uk

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that looks quite interesting,it would be especially good if it gave more cyclic travel.all comments are my opinion only!
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01-16-2006 03:32 PM  13 years ago
Janis

rrApprentice

Århus, Denmark

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Hi

You can adjust it, in many different ways. And i can tell you for sure,if you have tryed it once your face will keep on smiling
And about the cyclic,there is enough.
@Krunder yes i like it too,but no worry i have locked in with my own name nowShould we grap som beer soon, and get your V-Stabi going.....

regards Janis
...exist something better than V-bar and women...
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03-12-2006 01:30 AM  13 years ago
rotor- shark

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uk

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well i've managed to get the cyclic to respond more or less how i want it.i set the swash mix to 80% on the elevator and 65% on aileron,this gives me 5 degrees of blade input on both, with a very small amount of binding if full pitch and full elevator or aileron is used(i don't think the stick will go there unless a panic input is given!) i didn't realise that aileron was traveling more than elevator when both are set to the same percentage.the problem now is that it seems to backflip faster than it frontflips?i don't understand why?i wondered if it might possibly be me timeing the pitch slightly differently backward than forward,seems the engine struggles a lot more on the front flip than it does on the backflip,any ideas?all comments are my opinion only!
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03-12-2006 09:35 AM  13 years ago
DangerousDick

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Cheshire, England

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You have a problem there somewhere .

If you've got three matched servos (test the degree of travel on each before installation into the helicopter) and use the same output horn positions on all three and have equal rod lengths leading to the swashplate then you should end up using the same percentage of Cyclic mix to achieve equal blade pitch all the way around.

The action of flipping forward or backward should also be the same - if you have the heli side on, does it still seem different? Sometimes it just feels more intimidating one way depending on which way you did it first .

Cheers
Richard.
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03-15-2006 12:00 AM  13 years ago
rotor- shark

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uk

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well i've checked eveything and it's all at 90 degrees.the swash plate goes up and down without interaction.there is a small amount of interaction on full forward cyclic.i'm going to try some 95 mm v paddles on it, i think that will quicken things up a bit in the flip dept.i can't increase the travel any further as it already binds at 80% swash mix,there is a danger of the elevator link popping off the ball at full travel, if full pitch is also accidentally put in at the same time(happens in a panic somtimes)as the motion of the bell crank simulates the action required to pull a link off.this 3dnt is very different to the fury 50 i had.all comments are my opinion only!
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03-15-2006 08:11 AM  13 years ago
DangerousDick

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Cheshire, England

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From the looks of the model in your gallery you have heavier paddles in there and JR servos instead of the recommended 9206's? This might be changing things a little. The original paddles (or even the MkII ones) are very light and add a whole load to the effect of cyclic on this model.

Please DON'T fly the model if there's any position on the sticks where the links can 'pop off' - not only is it dangerous, it just isn't worth it.

What is the measurement of the ball spacing from the centre of the cyclic servos?

How much does the swash rise/fall on application of cyclic (measured from the swash outer ball).

Cheers
Richard.
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03-15-2006 12:31 PM  13 years ago
rotor- shark

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uk

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the heli has the original kit paddles on it now,mk11 has been for some time.the ball spacing is 14 mm from the centre of the servo to the ball.the swash rises and falls about 8-9mm from the INNER swashplate balls on application of cyclic.when i first set it up,i measured 7mm up and down on cylic from the outer swash ball,when i flew it the cyclic was dangerously slow and i had very little control over the helicopter,so i had to increase the travel.i found out my swashplate was getting to full pitch way before the throttle servo was getting to full throttle,due to different servo horns,quite a bit slower,so i have installed an 8700g on the throttle with a long servo horn and will try this,because i have a feeling that my cyclic to throttle mix of 50% is having little effect because of this delay on the throttle.the mechanics are on the limit's of binding, with stock paddles regardless of the type of servo used.the paddle is screwed on 165mm instead of the recommended 155mm as it won't go furthar and i don't want to force it.i notice that other folk are using nhp razor blades.when i bought this heli it came with sab blades and sab fai carbon paddles,i'm wondering if the blades are fai blades as well,if this is the case it would explain the slow flip rate.all comments are my opinion only!
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02-25-2007 01:37 AM  12 years ago
rotor- shark

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uk

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after all this time!
i don't believe it! after all this time,i've gone over the head set up and the radio set up many times.i didn't build this heli but it has been built well and it looked to be correct,but only just now i was looking at the photo's of jan's 3dnt on his website,and i noticed that the balls for the pitch links on his heli are connected to the OUTER holes on the mixer arms,whereas mine have been fitted on the INNER holes! it has occurred to me that this will reduce the blade input(bell) on application of full swashplate cyclic,resulting in a low flip rate.am i right? is this the most likely reason the cyclic is not that hot with 7mm swash travel? do your 3dnt's have the balls on the outer mixer holes?

all comments are my opinion only!
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02-25-2007 10:03 AM  12 years ago
DangerousDick

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Cheshire, England

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Definately in the outer holes on all the 3DNT's I've ever had.

Mine doesn't see enough action these days but is still sat there on the shelf looking like a million $'s

Cheers,
Richard.
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03-12-2007 01:40 PM  12 years ago
rotor- shark

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uk

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well after thorough flight testing i can confirm that it's actually better on the inner holes,as it was before! The heli flips better like this especially in the wind.I think i've gone as far with this as i can,i shall close the thread now,thanks to everyone who contributed,It has been a great help.all comments are my opinion only!
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