Properchopper's VS-1 build

[calcagno45]

I understand your theory here, but the way I tried to diagram above can eliminate those faulty esc burnouts when its connected at reverse polarity. Thats why I use the above diagram.

[properchopper]

Stay Tuned !

Ran the VS-1 today ; Ran with the x442; not bad. X642; not much better. M445 : beautiful !! Jan should be posting some vids shortly.

[lomdel]

Beautifull boat!! I just love it and my hands are starting to itch now...

[properchopper]

Thanks ! Best way to scratch the itch is to start building Post any questions you have & you'll get plenty of support.

[6S HYDRO]

Hey propper, i just mounted up my bj motor to the fullers lower unit and it seems like the collet is rubbing inside or somthing. I thought the bj motor had a shorter shaft than the sv, do you think i need to shorten the shaft some? Ps i met you at the winter warmups- i had the blackjack on 5s that actually turned.

[properchopper]

Hey propper, i just mounted up my bj motor to the fullers lower unit and it seems like the collet is rubbing inside or somthing. I thought the bj motor had a shorter shaft than the sv, do you think i need to shorten the shaft some? Ps i met you at the winter warmups- i had the blackjack on 5s that actually turned.

Hi Paul, I haven't used a BJ motor, but both the SV-27 motor and the UL-1 motor shafts need some shortening. I tape up the motor cooling holes to keep debris out & bench-grind the shaft until the end-play between the coupler /driveshaft/propshaft is @ 3/32. Go slow so as not to overheat the shaft. Go easy, takes a little fiddling to get right. Also make sure the motor is centered on the adaptor & no debris is lodged inside the adaptor.
Sure do remember, too bad the little boat sank !!

[6S HYDRO]

Thanks man, i will check the centering. Yeah that was my first and last abs hull. They break up too quik with that kind of speed.

[cybercrxt]

Propper, Do you fell the M445 is a faster prop than the x642? How about compared to the Grim 42x55? Let me know, Mike


Ok, Update, I ran the numbers on a calulator I have, and it shows the x642 prop being the fastest, around 56mph..but there is not doubt, it will load the electronics the most. Second fastest would be the M445. I had it showing 52 mph, and the Grim 42x55 which I am running now was set to the variables that I am seeing on the water with 46mph being the set variable. Propper, have you GPS'ed this M445? Also, how hot are your batteries, and ESC? Let me know, Mike

[properchopper]

Propper, Do you fell the M445 is a faster prop than the x642? How about compared to the Grim 42x55? Let me know, Mike


Ok, Update, I ran the numbers on a calulator I have, and it shows the x642 prop being the fastest, around 56mph..but there is not doubt, it will load the electronics the most. Second fastest would be the M445. I had it showing 52 mph, and the Grim 42x55 which I am running now was set to the variables that I am seeing on the water with 46mph being the set variable. Propper, have you GPS'ed this M445? Also, how hot are your batteries, and ESC? Let me know, Mike

Mike, I have no empirical data to back up these impressions, however my "seat of the pants" thoughts are :

1: The X642 is fast; I won the P-Spec OPC class at WW IV last year with that prop on my TS-2 / SV-27 combo. At the Nat's last year I ran a M445 & things got too hot & I crapped a rotor. The M445 on my UL-1 was violently fast, BTW.

2: I'm currently using the Grim 42X55, mildly cupped, on the VS-1/UL-1. No GPS, but good speed and motor @ 125, SC @ 110, and the Zippy @ 130. This at Brian's recomendation 'tho at the recent 2-lap he had one of his "secret" props on his VS-1/UL-1 and he ate my boat alive [ he did puff a pack & later on smoked the Hydra 120].

3: The M445 may be too hard on the electronics I think. A thinned-out X642 could be the ticket. A P-220 also works well.Today I'm going to re-work the Grim 42X55 some- thinner & more cup; should know more in a few days.

[cybercrxt]

Thats great info Propper. I will think about some prop choices now! Mike