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#1
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Ground 350 run without blades?
Has anyone ever run a AS 350 or 355 without the Main rotor blades fitted?
We do it all the time with our 315 but I've never heard of it with a Squirrel / A Star. It would make tail rotor balancing a lot easier for a start - i.e. no pilot needed. That's what we do with our Lama and use to do with our Alouettes. No one here wants to risk it - "The engines will overspeed" - " It will over speed the gearbox" - " It will over speed/torque the tail rotor" etc. etc. Anyone any real info as opposed to opinions? Slatts |
#2
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"Sla#s" wrote in
: Has anyone ever run a AS 350 or 355 without the Main rotor blades fitted? We do it all the time with our 315 but I've never heard of it with a Squirrel / A Star. It would make tail rotor balancing a lot easier for a start - i.e. no pilot needed. That's what we do with our Lama and use to do with our Alouettes. No one here wants to risk it - "The engines will overspeed" - " It will over speed the gearbox" - " It will over speed/torque the tail rotor" etc. etc. Why don't you go ahead and try it and let us know? Why do you need a pilot? Our mechanics (engineers) are trained to do groundruns in skid-mounted helicopters, up to and including Bell 412s. They do all the tail rotor balancing, etc themselves. -- Regards, Stan |
#3
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"Stan Gosnell" wrote in message ... "Sla#s" wrote in : Has anyone ever run a AS 350 or 355 without the Main rotor blades fitted? We do it all the time with our 315 but I've never heard of it with a Squirrel / A Star. It would make tail rotor balancing a lot easier for a start - i.e. no pilot needed. That's what we do with our Lama and use to do with our Alouettes. No one here wants to risk it - "The engines will overspeed" - " It will over speed the gearbox" - " It will over speed/torque the tail rotor" etc. etc. Why don't you go ahead and try it and let us know? :-) But that's the problem "The Management" will not let us. I have been doing it to 3180s & 315s since the 60s but the doom mongers say we can't with the newer ships. However they have never produced any evidence against. On the other hand I can't find any for! That's why I'm asking :-) Why do you need a pilot? Our mechanics (engineers) are trained to do groundruns in skid-mounted helicopters, up to and including Bell 412s. They do all the tail rotor balancing, etc themselves. Yes again in the 60s we did but there was one accident when an engineer wrecked a machine. So since then the insurance companies will not let us. Slatts |
#4
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"Sla#s" wrote in
: :-) But that's the problem "The Management" will not let us. I have :been doing it to 3180s & 315s since the 60s but the doom mongers say we can't with the newer ships. However they have never produced any evidence against. On the other hand I can't find any for! That's why I'm asking :-) If management says don't do it, why do you want to? They know you can't do it, so they can't blame you if the work doesn't get done. OTOH, if something bad happens, you'll get the blame. Accept the fact that you're required to do less work, with less responsibility for damage and/or lack of productivity. Don't look gift horses in the mouth. Yes again in the 60s we did but there was one accident when an engineer wrecked a machine. So since then the insurance companies will not let us. We've wrecked a few, too, but the mechs still run them up. If you can't, then don't fight it. See above advice about gift horses. -- Regards, Stan |
#5
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Sla#s opined
"Stan Gosnell" wrote in message ... "Sla#s" wrote in : Has anyone ever run a AS 350 or 355 without the Main rotor blades fitted? We do it all the time with our 315 but I've never heard of it with a Squirrel / A Star. It would make tail rotor balancing a lot easier for a start - i.e. no pilot needed. That's what we do with our Lama and use to do with our Alouettes. No one here wants to risk it - "The engines will overspeed" - " It will over speed the gearbox" - " It will over speed/torque the tail rotor" etc. etc. Why don't you go ahead and try it and let us know? :-) But that's the problem "The Management" will not let us. I have been doing it to 3180s & 315s since the 60s but the doom mongers say we can't with the newer ships. However they have never produced any evidence against. On the other hand I can't find any for! That's why I'm asking :-) Why do you need a pilot? Our mechanics (engineers) are trained to do groundruns in skid-mounted helicopters, up to and including Bell 412s. They do all the tail rotor balancing, etc themselves. Yes again in the 60s we did but there was one accident when an engineer wrecked a machine. So since then the insurance companies will not let us. So, I guess that it OK for pilots to wreck a machine. -ash Cthulhu for President! Why vote for a lesser evil? |
#6
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That is real info. What does balancing a tail rotor have to do with Main
Rotor Blades? I'm a maintenance guy who has bee ground running helicopters for almost 20 years. By the way Main Rotor Blades is what helps to make it a HELICOPTER. Which bunch of Yahoos are WE? Any PROFESSIONAL ORGANIZATION that the PROFESSIONAL avaition community might be familiar with??? |
#7
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"Bob" wrote in message ... That is real info. What does balancing a tail rotor have to do with Main Rotor Blades? I'm a maintenance guy who has bee ground running helicopters for almost 20 years. By the way Main Rotor Blades is what helps to make it a HELICOPTER. Which bunch of Yahoos are WE? Any PROFESSIONAL ORGANIZATION that the PROFESSIONAL avaition community might be familiar with??? You are missing the point. On 3180s & 315s one runs the machine without the blades to centre a new servo. (If you don't have a hydraulic rig on site) That is a standard practice. So one might as well do the tail rotor whilst you are at it. AND Its a hell of a lot quicker than when the MRBs are fitted. OK those machines have a clutch but I still say it would also be quicker - and safer - to do maintenance runs on 350/355s, that did not involve needing the MRBs, without them. Slatts |
#8
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Sla#s wrote: "Bob" wrote in message ... That is real info. What does balancing a tail rotor have to do with Main Rotor Blades? I'm a maintenance guy who has bee ground running helicopters for almost 20 years. By the way Main Rotor Blades is what helps to make it a HELICOPTER. Which bunch of Yahoos are WE? Any PROFESSIONAL ORGANIZATION that the PROFESSIONAL avaition community might be familiar with??? You are missing the point. On 3180s & 315s one runs the machine without the blades to centre a new servo. (If you don't have a hydraulic rig on site) That is a standard practice. So one might as well do the tail rotor whilst you are at it. AND Its a hell of a lot quicker than when the MRBs are fitted. OK those machines have a clutch but I still say it would also be quicker - and safer - to do maintenance runs on 350/355s, that did not involve needing the MRBs, without them. Slatts What does the manufacture have to say on this matter. They write the maintenance manual. rm |
#9
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"me" wrote in message om.au... What does the manufacture have to say on this matter. They write the maintenance manual. I'm checking the 350 manuals but nothing so far. The running 315/3180 without blades was shown to us by the factory rep when we first bought it. Slatts |
#10
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What does the manufacture have to say on this matter. They write the
maintenance manual. I'm checking the 350 manuals but nothing so far. The running 315/3180 without blades was shown to us by the factory rep when we first bought it. Slatts Factory rep or not, if it isn't in one of the maintenance manuals as one of the proceedures, you would be wise not to do it. One of the concerns I would have is the affect on other components without the inertia of the main rotors in the system. Could you unknowingly damage something in the driveline? The manufacture is the best source for figuring this type of thing out. Eric D |
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