I replaced the carbon spinner backplate with an aluminum backplate. The thought was the use of a carbon spinner backplate with a carbon propeller resulted in the sheared prop bolts I had on the last flight of the contest season.
The carbon backplate weighed 4.6 ounces.
I ordered a lightened TruTurn backplate that was black anodized. It ended up being slightly too small to work with the carbon spinner. It weighed 6.4 ounces.
The Dave Brown Products lightened backplate was just big enough to work. It takes a little light persuasion to get the carbon spinner into the backplate groove. It only weighs 4.3 ounces. We have a winner!!
