hansvonpensch

I am going to try to upload some more images.

hansvonpensch

I belive I got 2 of the 6 pictures, when I tried to send all 6 it did not work.

hansvonpensch

2 mor of the 6 and the last 2 to follow

hansvonpensch

The last 2 are done, I just kinda figured how to up-load, When I tried to send all 6 at once it told me"unable to find rcuniv....."

Deathwish

My Feedback: (6)

What type of speed control's are they. Am looking to gget a copuple my self.

hansvonpensch

Those are the $40 proboats, I have a Trojan with 2 Grapner 12v 700s that I control with only one proboat, no water cooling, but it does sit on an aluminum plate, I can hold the esc after I run it hard, the 12v 700 must not pull many amps, I use 1-3/4" Dumas brass 3 blade props with a 2" pitch, With 1-1/2" Dumas props I only get about 7mph, with 12v. I get about 13mph out of the trojan and about 14-15 from the PT boat with the 1-3/4" props.
Tried the mcd 480 with no water cooling on the pt boat and it cut out.

Rich404

Hansvonpensch,

Nice job on the PT boat!! It is cool that you are running motors on all 3 shafts![sm=shades_smile.gif]

Best of luck!!

-Rich.

dauntlessfan

Great job and nice installation on the hardware below deck. Can you tell me where you found those brass couplers that fit the larger shaft of the 700 motors?

hansvonpensch

I have a 5mm round file that I found at the flea market. It takes about 3-5 minutes of working the 3/16" (4.87mm) brass Dumas coupling to get the 5mm opening. One you break threw, remove the file at once, because any extra smoothing will only make the coupline loose.

kennyach

Here some picture of Dumas 48' PT 109 boat that i am building for for an friend of mine

subsinker

My Feedback: (61)

Hi,

Nice job so far! I love these old PT boats. Heres a few pictures of different ones I own or have owened in the past. Lotsa fun and you can scale them out very nicely.

Pete

kennyach

Hi m8 real nice are these kit built or Scratch Build .i an starting too Scratch Build now with plan i got from Ebay

kennyach

one look like pro poat i see

kennyach

Here some of the scratch build that i am working on now for me one is an 1/20 48" and one an 1/35 33"

rye

My Feedback: (10)

hi
great looking pts, heres mine 5' scratch build ,i wish i would of use three motors speed runs out to early ,and heres a youtube page of my rc boats and other and a picture of are small club at our summer place we have a big pond in front great just 10' to water eage, thanks rye
http://www.youtube.com/results?searc...rch_type=&aq=f

kennyach

Hi mate nice boat and it look like it run good .what motor are you running

rye

My Feedback: (10)

hi
i am using 2 viper 900 2 esc ,2 12 volt gel cells prolbem i have to get good speed i need to hold the trigger at full batterys run out atfer 20 minutes but she looks great coming and going ,thanks rye

kennyach

sound like the props pitch need some thinking too be done .what pitch are you using m8

rye

My Feedback: (10)

hi i dont remember i think they are 1.75 " i which i could under stand that and batterys i think i have the wrong size i think a smaller prop would make it faster ?

kennyach

but a smaller prop will make it faster. you get more revolutions. many things can affect which prop size you need such as altitude and use of the boat.

rye

My Feedback: (10)

what about this prop is the pitch ok? or any other one in this line can i use a two blade would that be better thanks rye
http://www3.towerhobbies.com/cgi-bin...?&I=LXRUD6&P=0

rye

My Feedback: (10)

or this one
http://www3.towerhobbies.com/cgi-bin...?&I=LXE498&P=0 pitch is two

hansvonpensch

I ran 2 grapner 700s on 12v with 2, 1.5" dia., 3 blade 2" pitch Dumas brass props on my trojan, it did about 7mph , I brought it back to shore and swaped out the props for 1.75" dia 3 blade 2" pitch Dumas brass props and it did about 11mph, other people have had different results with simular tests. Randy

hansvonpensch

With viper 900, they are not that fast, but have a lot of tourqe, you could tirn 2" props. Those are low rpm motors, they must have a lot of turns to and thus have a lot of tourqe.

kennyach

me i use 2 Blade it better then 3 Blade ,then again i use gas engine .check out this link http://www.funrcboats.com/prop_chart1.htm