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Raptor E325 › Mini Titan can't roll straight
08-11-2007 04:33 AM  10 years agoPost 1
yapjy

rrKey Veteran

Singapore

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Hi,

I try to set up the ccpm as proper as possible but there's a limit to eye balling.

When my mini titan rolls, it tends to tail down. I try using mixing to compensate but it goes to as high as 30% ailerion-elevator and the problem still persist.

I'm using HS65 on the cyclics.

Any advice

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08-11-2007 11:26 AM  10 years agoPost 2
Gyronut

rrProfessor

Martinsville In.

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Does it roll the same during RH or LH rolls..??

Are you certain your not giving it some unwanted aft cyclic..??

Rick

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08-11-2007 08:53 PM  10 years agoPost 3
TOSH

rrElite Veteran

UK.Peterborough

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lt could be tail heavy. What packs are you using and how does roll in backwards flight?

Flybars. Who needs `em.

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08-12-2007 09:17 AM  10 years agoPost 4
Paul Woodcock

rrElite Veteran

Dubai - United Arab​Emirates

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Hi Yapjy

I found my MT very sensitive to cg.

I eyeballed the swash level and then set the servo atv to give swash level at max + / - pitch. I then fine tuned this atv by doing upright and inverted climb-outs. I also used a eagle tree recorder to measure V and A and set the pitch to draw the same both sides. This gave me 0 trim and equal performance upright and inverted performance and straight climbs.

If i changed the cg just slightly it affected the hover trim and the climb-outs. and i needed to reset everything.

I found that a slightly forward cg kept the machine going forward during the rolls and there was no mixing required.

The little thing always impresses me and all the TRex drivers at the field (and the nitro boys). i have the only MT in Dubai. They are not available here.

Paul

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08-13-2007 03:01 PM  10 years agoPost 5
yapjy

rrKey Veteran

Singapore

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It's tail heavy. I shifted the battery pack all the way front and now it rolls better.

I'm using a mix of TP and FP 3S 25C lipos

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Raptor E325 › Mini Titan can't roll straight
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