PPRuNe Forums - View Single Post - Sikorsky S-92: [Archive Copy]
View Single Post
Old 20th Dec 2004, 21:49
  #285 (permalink)  
NickLappos
 
Join Date: Apr 2003
Location: USA
Age: 75
Posts: 3,012
Likes: 0
Received 0 Likes on 0 Posts
vertalop,

Touche on the "tired old" I started the snit, I agree. Sorry!

For ppruners, regarding blade shed on an engine, what vertalop refers to is the fact that newer aircraft must be protected from a bursting engine (turbine burst) which can cut shafts and controls causing vast safety problems. The latest makila engine is designed to theoretically not burst, and tested to high overspeeds, where it tosses its blades before the disk bursts, a demonstration of the most likely disk burst scenario. This allows the EC 225 to pack vital components next to the engines, anyway, so the basic airframe on the 225 is vulnerable to a turbine burst, but the engine is certified to not burst. IMHO, the ability to withstand a turbine burst by basic airframe design is a much stronger solution, thus I would believe the point might go to the S-92, but buyers will decide.
NickLappos is offline