Yep, the beaver tail one (facepalm) looks ok to most but annoys the heck outta me, don't know if she'll ever hit the water.
Hi I replaced the five blade with 7 blade from engel and the speed difference was impressive i also use a mixer on mine ti improve turning circle, and the direction of rotation made a difference too..
I bought these and they contra rotate out wards when viewed from the rear..1 x[/t]7-Blade Scimitar Prop LEFT dia. 50mm M421,15 € 1 x[/t]7-Blade Scimitar Prop RIGHT dia. 50mm M421,15 €
Engel supply those- http://www.engel-modellbau.eu/catalog/index.php?cPath=113_39_177 (http://www.engel-modellbau.eu/catalog/index.php?cPath=113_39_177)