RE: RClander T33 for 90 or 120mm edf
The Lander 120mm DF was originally designed for a 44mm diameter (or less) inrunner motor so the new version uses a mount plate to fill in the chamber when an outrunner is used. The motor mount plate is designed to accept two different motor hole spacings. Although the motor holes fit perfectly, the shaft on my Turnigy T600 motor was too short to attach the rotor adapter.
After looking at pictures of the RCLander [link=http://parkrcmodels.com/product_info.php?cPath=97&products_id=1118]OEM[/link] 980 KV Brushless Motor, I can see that the shaft is still quite long even with the motor mount plate attached.
So it looks like you need either a 44mm (or less) inrunner motor or the Lander special long 6mm shaft outrunner to work with the 120mm DF. The new Turnigy [link=http://www.hobbyking.com/hobbyking/store/__19111__Turnigy_SK3_Fandrive_3994_850kv_120mm_EDF _.html]SK3[/link] Fandrive - 3994-850kv (120mm EDF) inrunner would be fun to try (for $97) but the shaft size is 8mm. I like the idea of using an 8mm shaft on the higher power motors so I may consider boring out my adapter. I need to determine if the mounting holes are the same standard as the 25mm across on the Lander DF.