I am currently investigating different frame design and battery / motor / ESC / propellers combinations based on known builds.
However, when looking on hobbyking, they have different weights for the parts. For instance, the motor turnigy D2830-11 (1000 kv version) has 83g (next to the price) and 52 g in hobbyking specs and in its datasheet.
Same for propellers. What is the weight near the price ? Does it include bolts and knobs for attaching the propeller ?