MTO Calidus

[500e]

http://www.caa.co.uk/application.asp...detail&id=4775
Personally I would replace the the bolt before I even ran the motor again, let alone flew it!!
A lot can happen in 30 hours

[RotorTom]

Are you the same 500e I see on Vertical Reference?

[PTKay]

Main bearing bolt??

This is hard!!

[500e]

Originally Posted by RotorTom

Are you the same 500e I see on Vertical Reference?

Found out ah well
Will get my hat & coat

[Arnie Madsen]

Originally Posted by 500e

Found out ah well
Will get my hat & coat

We have rules around here you know. Leave your damn hat and coat on the peg and answer the following questions.
1. Are you one of those 500 guys on PPRnue ? I hope so. I like every post from every 500 pilot.
2. I've heard of 500C & 500D but not 500E. Is there such a thing ?
3. If you have read this far , it is compulsory that you stay. Leave the coat and hat right where they are at.

Helicopter pilots have a crude way of welcoming one another . That was mine.

Hope it works.

Arnie

[Steve_UK]

That's interesting - I think I've seen you 500E !

I'm in Zummerset - seen you in the LangP area - make sense ?

Cheers


Steve in UK

[gyronutjoe]

I thought all bolts in places like that would be grade 8 or metric 8.8. Zinc bolts are what I thought were standard grade 5?

[PTKay]

I thought all bolts in places like that would be grade 8 or metric 8.8. Zinc bolts are what I thought were standard grade 5?

Finally back on topic.

Can somebody elaborate on the quality of this bolt used?
Some of my friends fly Calidus here in Poland I don't want them to die.

This is the "Jesus bolt", for gods sake, this is no joke.

[500e]

Use link in post1
Personally I would replace the the bolt before I even ran the motor again, let alone flew it!!
A lot can happen in 30 hours

[rfsolutions]

Now we know why the new rotor blades are limited to 2000 Hours! They depart the aircraft before they time out

The UK need to stop picking on those guys!

[Gyro_Kai]

Hello, please understand this only as a x-translation. I have no stakes in this.

According to a phone call made by a customer, this us what came about.

There was a blanket warning issued, regarding any zinc plated bolts, because zinc plating may result in hydrogen deposites, making high grade steel brittle. However, autogyro uses oversized low grade bolts, to counter the problems with high grade steels and resistance to repetitive strain. So sthis general warning should not apply.

I'm only the interpreter here.

Kai.

[rfsolutions]

Originally Posted by Gyro_Kai

Hello, please understand this only as a x-translation. I have no stakes in this.
However, autogyro uses oversized low grade bolts, to counter the problems with high grade steels and resistance to repetitive strain. So sthis general warning should not apply.
I'm only the interpreter here.
Kai.

It would surely give me a warm fuzzy feeling flying around the countryside with critical components being oversized & low grade. Hasn't this forum covered the topic of low quality hardware in the construction of gyros (aircraft)?

I know one dealer in particular that goes through the painstaking process of scrapping all the low quality hardware that comes with an imported kit and replaces it with AN hardware and I commend him for it!

[Master Roda]

Does anyone know what the replacement bolt is?

[aerobatic]

This is the answer from the Auto-gyro boss :

''Hi all together

Here some information on the main rotorbolt

This bolt is manufactured , to the din 50961 in wich the galvanizing is defined

The ukk caa does not accept the process as descried, there for all rotorsport uk gyros will have to fly with ungalvanized bolts again

We are not going to change our production, the bolt will stay the way it is

please be aware that when ever a mpd is published by the uk caa this is only vaild for rotorsport uk gyros

the uk caa is not responsible for autogyro !


with best regards,
Otmar Birkner''

So, does anyone know about a real case where that galvanized "Jesus" really break in flight?

Maher
who's about to get his Calidus in the few next days

[karlbamforth]

The CAA document states that they were informed of a manufacturing defect and refers to Rotorsport SB053.

This SB would appear to be issued by Rotorsport UK and has nothing to do with Autogyro.

Does anyone here have access to the Rotorsport SB ?
It would appear that the CAA simply upgraded an SB (non mandatory) to a mandatory requirement. As it involves a critical flight component it seems reasonable to me.

The questions now are...

Is the information in the SB wrong and should be revoked?
Is the SB right and all owners are at risk?