Search results

hi! i have asked about this in other forum with less success. i have 2 IB 6-cell matched packs and 1 IB 6cell loose pack. these are used packs, charges about 3700-3800mah. now i want to build a 7cell pack, since my esc (futaba mc330) can only support 7cells. now i am thinking of getting a...

new os .21 rg-m, complete in box. $115 shipped i'll accept money order.

hi! i've got an OS .21 rg-m new in box, complete. anybody interested? i will also include a prather 215 prop with the engine. + a macs .21 tuned pipe shipair parcel post (from the philippines) thanks! i've added a macs .21 tuned pipe (not marine version) to offset payment of western union if...

hi! i have a problem with my boat. it is powered by a 540 stock mabuchi with a mini jet drive from graupner. well its a bit disappointing. although i am not expecting it to be very fast, i am at least hoping it will just plane, but i cant. its is only powered by a 6cell pack. i dont want to...

if i am to compare a os .21 nitro engine into an 540 electric motor, how many electric motors with 7.2 volts each will it be compared to the nitro engine? what i mean is that a boat is powered by a .21 engine, will it takes just 1 540 size motor with 7.2 volts to make it go as fast as the nitro...

hi! i think i might have the money to spend on a rudder and a strut when i got my christmas bunos. not much though, that's why i really thinking about it. i really need in this one. 1. personally i like the speedmaster strut. even the price. one question, does the brass bearing sleeve last...

hi! i have a 20" x 8" hull (still ongoing). this is intended for a graupner mini-jet drive. the design is based (intended to be anyway) on a personal watercraft. now i have a OS .21 rgm lying around here. is it possible to use this engine in this hull considering its size? i'll try to put...

hi! i think i will have to save money now to buy a strut and possible a rudder. what would be a good but cheap hardwares? i seen some on aeromarine, are they good? to save money, i was even thinking of buying only the strut blade minus the bracket since this will be easy to make. i've also seen...

hi! i'm in the planning process right now of building a 20" jetski type boat. i will be using a graupner mini jet drive for this project since i already got 2 of them. my question is what size of a motor should i use? i think i can only fit a 540 size motor in it or smaller. the motors i have in...

hi! i have a prather 215 for my os 21 rg-m. how do i polish this? which side? and any idea on how i balance the prop? i don't have a prop balancer? thanks! ernest

hi! i don't have a strut and rudder for my cat. i will try to go to a machine shop and have it custom made (depending on the cost) i need dimensions, especially the inner dimension of the strut (where the bushing and prop shaft goes). and the bushing dimension. my prop shaft is 3/16" diameter...

hi! what is the right size for a .21 os rg-m engine? is it ok if the one i will buy will be for a rc car or an airplane? maybe helicopters. these are the only ones available in the hobby shops here. and hoe long is the run time? thanks! ernest

hi! how good is this flex cable? how would you rate it compared it hughey, octura or other cables? thanks!

hi! i've just receive my new engine, O.S. .21 rg-m.. i kind of familiarize myself with it first since i don't have the boat done yet, and the hardwares not yet arrived. i tried to fit the flywheel in, but i don't know how. i've inserted the collet and the flywheel into the crankshaft and tried...

hi! what would be a good tuned pipe for a O.S. .21 rg-m? i have seen macs, i'm a bit confused, they have 2 for 3.5 engines.. the one is just labeled tuned pipe and the other is marine tuned pipe.. they have a price differnce of about 14$.. i have also seen the prather tuned pipe.. will any of...

hi! is it possible to use Prather Cable Collet K+B 7.5 3/16 for an O.S. .21 RG-M engines? i'm planning to buy this engine thru tower and it's the only cable collet avail there. i'm ordering from overseas so shipping cost is very critical if i order through different stores. thanks!! and one...

hi!! i'm in the process of saving to buy an engine and hardwares.. but i am torn between engine size.. i'm considering either a .12 or .15 O.S. cv-rx or the O.S. .21 rg-m.. they're almost in the same price bracket... is there a big difference in fuel consumption between these engine sizes? how...

hi! i'm trying to build a .12 or .15 boat. power it possible with a cv-rx engine. my question is, can i use a .19-.25 mac muffled pipe in a .12 or .15 engine? will there be any problem? it will be a sport boat, i want it to be quieter. thanks!

hi!! where can i find a plan for a barrel back runabout, like the chris craft barrel back? does anyobody have some on the pc (scanned or CAD file). i'm planning to start building a wooden boat, classic but fast. thanks!!! ernest

hi! i'm new to rc boating. i need some help about engines. i want to build a scale boat like a motorboat. i want to power it with nitro for longer run time and speed and power. i will put a clutch on it to add realism. can you recommend an engine? the boat would be 30-40in.. i'm even planning to...