FlyBoy1960

no

I don't think you are correct with the Woodcomp props, they are manufactured in the Czech Republic and I doubt they were ever fitted to the original gazelle aircraft in the 1980's. Woodcomp are still in business, so there should be no issues in getting them but I am 100% sure they were not fitted as standard equipment to the gazelle aircraft. WOODCOMP came into existence at the end of the year 2000 as a result of the merger of the two largest producers of aircraft propellers in Czech Republic having the rich and long-term tradition.

I know this, but it came from their FAQ section

(turbulence) It has to be if what you are balancing is vibrating. Changing pitch alters: Blade aerodynamic center of pressure Torsional load on crankshaft Gyroscopic forces Engine firing pulse coupling Blade flex characteristics So even though the mass imbalance doesn’t change, the way forces transmit into the airframe does. and for best results you must do the balance at cruise rpm AND cruise pitch, most probably while flying ? If you balance in fine pitch but fly mostly in coarse pitch: The aircraft will still vibrate in normal flight. From the Dynavibe manual FAQ's

you need to think about a propeller flying through the air, much like a wing on an aircraft. If you increase the angle of attack on the blades by going to course pitch you are effectively doing what you would do by pulling the stick back and getting stall buffeting in an aircraft. That is probably whether vibration is coming from. It doesn't help that you are sitting on the ground just beating the air.

more cavitation ? loosing the laminar flow because tha AOI is to high and your losing air in the boundary layer ?

Single blade with counter ballance.

any guesses on type ? Looks like a Cessna (i mean really, not a journalist's Cessna)

Facthunter, the problem is in a cooling situation the pipes contain positive pressure. In the carburettor location they are in negative pressure, i.e. vacuum, so I don't get what you are saying ?

Show me some that have run for 2,000 hours please. Everything works well in the first 200 hours, even a Jabiru

Thanks - I will go and do it now.

Is there a way to BLOCK a user/person when their contributions and comments are not worthwile ?

It's ROLL out, not ROLE out. It's FLARE, not FLAIR. 💯 (Flyboy - The grammar Nazi)

Measured with a surveyors wheel, meant to be accurate. Seen the video and hard to tell height, but very low and didnt climb.

The idea was the GSCC (council) would cut the trees over a 2-6 month period for training, the club would remove the stumps. Just a shame it didnt happen when the committee changed a few years back, i will bring it up again in the next meeting.