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T-REX 450 › Stiff Centre ball in swashplate
02-07-2010 04:28 PM  8 years agoPost 1
simon_t

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Herne Bay, Kent, England

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Have Align gone from making sloppy swashplates to over-stiff ones?

Having owned a number of 450 SEs, and having really enjoyed their performance, I finally weakened and got a 450 Pro recently. I was really disappointed when I first flew it, as it felt horrible - not what I was expecting. Having put a few batteries through and changed the ATVs down a bit, it was better but not right.

When I took it home and checked the head over I found that the ball in the centre of the swashplate was very stiff, and this was causing hysterisis and really screwing up its abiity to hover or fly around slowly. Fitted a new swashplate (tried all the recommended methods of freeing the ball on the original without luck), and its superb. I am now very happy and really enjoying thrashing it around now, it is everything I expected and more.

So I put it down to a 'one off'. But today down the club a friend was flying his new 500, and the tail is showing a bit of movement side-to-side, with a slight nod, and the model won't settle in the hover. Everything in the tail is free, and working OK, and the gain is OK. Then felt the swashplate, didn't feel good. Took the lower ball links off, and again found that the swashplate was ridiculously stiff. The servos must be working very hard, and the swashplate does not return to the same position each time it is moved. So he will need another swashplate.

Are others finding the same problem, as the difference between the correct and stiff swashplate is like chalk and cheese?

Simon

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