Shuttle T/R blade fatigue?

Shuttle T/R blade fatigue?

Post by DaveGaml » Sun, 24 May 1998 04:00:00



The weather has finaley stoped ranning long enough to get some good flying in
this week. After doing some heavy airobatics, while flying inverted I started
having some weard things start hapining to the tail of my shuttle. I righted it
and made a quick fly by, every thing seemed ok, but just for safty sakes I
fliped it into normal and brought her in for landing. Two feet from the ground
she started to spin, with full rudder stick it was still spining but slow so I
set it down. Now it wosent the easiest landing but not that hard.

When I went over to it I could see that the T/R blades were all busted up, this
seemed very strange. There was one peice about the size of a dime on the ground
neer the heli, so I thought maybe the blades hit the ground, but after looking
closer I could see no hits. Both blades were missing about the same amount of
materal, about 1/3 at the ledding edge to about 1/2 at the trailing edge.

Has anyone ever seen blades fatigue like this, or am I just off on the wrong
track.

Dave

 
 
 

Shuttle T/R blade fatigue?

Post by Paul Smi » Sun, 24 May 1998 04:00:00


Hi Dave,


Quote:
>The weather has finaley stoped ranning long enough to get some good flying in
>this week. After doing some heavy airobatics, while flying inverted I started
>having some weard things start hapining to the tail of my shuttle. I righted it
>and made a quick fly by, every thing seemed ok, but just for safty sakes I
>fliped it into normal and brought her in for landing. Two feet from the ground
>she started to spin, with full rudder stick it was still spining but slow so I
>set it down. Now it wosent the easiest landing but not that hard.

>When I went over to it I could see that the T/R blades were all busted up, this
>seemed very strange. There was one peice about the size of a dime on the ground
>neer the heli, so I thought maybe the blades hit the ground, but after looking
>closer I could see no hits. Both blades were missing about the same amount of
>materal, about 1/3 at the ledding edge to about 1/2 at the trailing edge.

>Has anyone ever seen blades fatigue like this, or am I just off on the wrong
>track.

Just a hunch, but how long are your main blades ? Could the mains have
hit the tails (more likely when inverted, since any coning is
downwards) ? Any help ?

Cheers, Paul

Scotland, UK
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