prop sizes and pitch

hi
i may be looking to venture into RC boats
looking for some info in here

i see some props labeled 43mm x 1.4
and i see some labeled 43x26x9mm
i even see some list p1.7 d1/8x2

what is the difference ? i think those are just different way of presenting measurements but how does one see what is what ?

i do know how a normal airplane prop of say 12 x 6 ... 12inch diameter and 6inch of pitch (6inch of travel per rotation thru solid medium)

how some knowledgeable person can shed some light on this ..

on another note ...
i wanna buy an ARR boat .. http://www.hobbyking.com/hobbyking/store/__11984__Turnigy_Taipan_Fiberglass_V_Hull_385mm_Hull_Only_.html

i already have a 2836 3200kv outrunner capable of over 600watts
what other items will i need (besides i ones i list below) ?
trim tabs .. http://www.hobbyking.com/hobbyking/store/__12198__Trim_Tab_Set_40_5mm.html
flex rod boot .. http://www.hobbyking.com/hobbyking/store/__12685__Flex_Rod_Boots.html
rudder .. http://www.hobbyking.com/hobbyking/store/__12200__Rudder_Set_Small_74_5mm_.html
servo mount .. http://www.hobbyking.com/hobbyking/store/__11775__Servo_Mount_.html
drive dog .. http://www.hobbyking.com/hobbyking/store/__12713__4mm_Drive_dog.html
water outlet .. http://www.hobbyking.com/hobbyking/store/__11774__Water_Outlet_6mm_.html
motor mount with cooling .. http://www.hobbyking.com/hobbyking/store/__11770__CNC_Water_Cooled_Motor_Mount.html
strut mount .. http://www.hobbyking.com/hobbyking/store/__11772__CNC_Strut_Mount.html
shaft & prop .. http://www.hobbyking.com/hobbyking/store/__12271__Shaft_and_Prop_set_4mm.html
shaft sleeve .. http://www.hobbyking.com/hobbyking/store/__12925__Boat_Shaft_Sleeve_255mm.html

what else did i miss ??
i am totally NEW TO RC BOATS .. but i have lots of experience with helis and planes

thanks

ok ... got the ESC and battery part too

anyway ... ordered the boat and all of the above stuff along with some extras not listed as well
i guess i will know what i missed once i start building the boat

Originally posted by allanQ ok ... got the ESC and battery part too anyway ... ordered the boat and all of the above stuff along with some extras not listed as well i guess i will know what i missed once i start building the boat

Ouch, i am sorry to sink your boat but the boat is too small for the motor. the Motor would be ok in a 450-500mm size boat.

I don't know what battery you want to use, but try to keep the rpms between 28-30000 rpm. norrmally you use a 4200kv motor with a 2s Lipo.

And for the ESC: for the taipan go with a good 30A ESC, if you go for a 500mm boat you need somethong around 60-80 Amps, depending if you use 2 or 3s.

Just keep in mind that boats are real ESC killers since they pull high Amps during acceleration.

Maybe you should have a look at this:

http://www.r2hobbies.com/eng/proddetail.php?prod=rcbt3901001_code

it should fit your motor and it is already set up, which isn't that bad for a first boat.

And i would recommend you the go to a boat specific forum like rummrunner or RC-Racebaots.de (they have a english section)

Edited by maxx78 - 19/Feb/2012 at 4:32pm

On a small boat weight is as important as power. I have a very small RTR boat. The motor would barely get the boat on plane until I changed the NIMH battery pack for LIPO. The voltage on a fully charged pack was the same but the battery weight was half. With the reduction in weight the little boat got up on top of the water and litterly flew. It will now do back flips if you are not careful.