When a turboprop aircraft lands and the engines are stopped are the prop blades hot to touch.?

Question

Or can they hold a static charge that may be dangerous.All aircraft when I was young had to have a earthwire attached when on the ground,especialy when refuelling.

Answer 1

No, the blades are not hot to touch...I don't know why some people insist on answering these questions wrong...If you do not know the answer..do not shoot from the hip...chances are...it is wrong...Blades in flight will develop static as a result of friction from them moving through the air so fast...but this is removed when the aircraft lands..However, some airplanes will hold static in the windshield area and can give you one heck of a shock if you do not splash it with water before touching it or cleaning it...(this is common in high altitude and high speed aircraft..not so much in small low altitude, slower planes)...I hope this helps

Jonathan S

ATP-LRJET,HS-125

CFI/AGI

Answer 2

most likely

Answer 3

No they are not hot to the touch. The inside of the Engine however is a different story. The reason for grounding an aircraft for refueling is it sets on rubber tires which insulate it from the ground and the fuel nozzle may draw a spark and cause a fire. It is a safety precaution.

Answer 4

yes they are too hot and u wont get a static charge

Answer 5

When the plane lands the static dissipates.

No, the props are not hot. Maybe there is some warmth from the high RPM, but once the plane is landing and taxing, the RPM is low, the props  cool down rapidly. Now if you put a temp probe on it while in flight, they may show some heat buildup, but at the same time, the air is cooler at highest altitude, and the blades do cool down.

While refueling they ground the plane to discharge any built up static to prevent sparking and igniting the fuel.

Answer 6

No the prop is not hot.

The static wire is just that to dissipate static charge and is attached before any refuelling op takes place, this happens at any airfield and is one of the most important operations that takes place.

Indeed many small airfields have their own Standard Operating Procedures SOP which outlines this.