sorry for the damage... but these things happen.. i have lost a few props along the way.. you may have tightend the spinner down a touch too tight and cracked the plastic.. i only use them for starting purposes. not for looks.. could care less what they look like as long as i have ease of starting.. practice deadstick landings on the sim if you have one... so next time you will be able to minimize the damages... 98% of my landings are deadstick... mostly due to fuel starvation.