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S-64 Skycrane - Rotor Characteristics

S-64 Skycrane - Rotor Characteristics

S-64 Skycrane - Rotor Characteristics

I'm researching the rotor design for the S-64 Skycrane. I need technical information on the rotor blade, such as cutout, twist, solidity, etc.
From my research thus far, the airfoil used is NACA 001 MOD, but I'm having a difficult time locating the rest of the information I need.

Do you know where to find rotor information on current production helicopters? Most of the information on Google turns up the number of blades, length, or other very basic information.

Any help is appreciated.

Lance Dofflemyer

RE: S-64 Skycrane - Rotor Characteristics

Call Sikorsky and ask.

Mike Halloran
Pembroke Pines, FL, USA

RE: S-64 Skycrane - Rotor Characteristics

That is simple and straight forward. Thank you for the information. I'm also looking for online information. Perhaps someone knows of an online database that has more detailed technical information for helicopters in general.

Lance Dofflemyer

RE: S-64 Skycrane - Rotor Characteristics

I am pretty sure the Sikorski sold the TC to Erickson Air Cranes, and therefore won't have much to say, especially if you are an attorney.

Not saying you are!


RE: S-64 Skycrane - Rotor Characteristics

Not an attorney, thankfully. Just a college student crunching data. Can you calculate the service ceiling using the blade element theory?

RE: S-64 Skycrane - Rotor Characteristics

To sort of answer your last question, analyse a helicopter for which you have complete specs. If you can estimate the service ceiling reasonably well, then that will tell you what info you need on the skycrane. Whether you can get that info is a whole separate issue.  


Greg Locock

New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies  http://eng-tips.com/market.cfm?

RE: S-64 Skycrane - Rotor Characteristics

If you want the service ceiling, look at the Type certificate data sheet.

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