# How heavy are turbofan and turboprop propeller blades?

How heavy are the blades from

1. Turbofan (CFM56-5B, RRTrent800, PW4062A) and
2. Turboprop (PW127M)

engines?

Is there a general appromixation like $$m_\mathrm{Fan} = 0.1 \times m_\mathrm{Turbine}$$ as well?

• If you are searching for open source data, you may ask on opendata.SE – Manu H Apr 26 '19 at 12:04

## 1 Answer

According to this ATSB Australia Report, the Original Blade Weight of the Trent 800 Blade that failed was 11.6KG. The weight of the blade in grammes is etched into the blade root.

Fan Blades of the same type all differ (slightly) in weight and are chosen specially to balance the engine when it rotates, or balance weights are added to the blade much like your wheel on your car. This is to avoid vibration.