Small Hydro footprint

[Ron Zaker Jr]

If one was to take a power system from a 1/12th scale on road car(4 cell/2400's, 19 turn) and use it in a Hydro(outrigger) ,what size foot print would be a starting point? What would the target weight be for the structure/less hardware and electronics? What type of run time/MPH could be attained? Very curious and thanks for any input.

Ron Zaker Jr

 

[Speed Jr.]

Gunna try to find out soon Ron. I dont think the drive system I used with the 400 size motor is gunna hold up so Im using strait shaft. dont you think the footprint should be determined on what kind of water you plan to run it in? For my rigger(very small) ripples is all it may handle, you may want to go a little larger footprint if you want to use it more often. I may punch out a few center sections one night in the next week or so for the 540 motor setup on 4 cells, Ill give you a call.

Larry Jr.

PS, Im putting together the CF 20 rigger.

 

[jayt]

I've built several 4-cell riggers, and I've held numerous SAW records with them. Using 05 motors and sub-C cells, the 4-cell rigger should be about the same size as a 6-cell rigger. Mine measure about 20"-21" long and 10"-11" wide. A 19-turn motor is pretty mild for a 4-cell boat, you'll not be going very fast but should have good run time. A better choice for sport would be 10 - 12 turns. Expect speeds around 25-30 with a good setup. For max speed, a 7 or 8-turn will work, but you will not be able to run for long. With my geared setup, a 5-turn 05 made numerous passes right at 53 mph.

The boat will need to be built light - mine have weighed 27-29 ounces ready to run. The sponsons will need a high angle of attack, the flex cable or wire drive will need to be very drag-free, the power wires will need to be very short. Props for the 19-turn will be x435, y535, 1735. For a 10-turn, an x432, x435, 1732. Watch for heat, and don't do the noob stunt of running the boat until the pack dumps the first time out. :blink:

 

[Ron Zaker Jr]

I've built several 4-cell riggers, and I've held numerous SAW records with them. Using 05 motors and sub-C cells, the 4-cell rigger should be about the same size as a 6-cell rigger. Mine measure about 20"-21" long and 10"-11" wide. A 19-turn motor is pretty mild for a 4-cell boat, you'll not be going very fast but should have good run time. A better choice for sport would be 10 - 12 turns. Expect speeds around 25-30 with a good setup. For max speed, a 7 or 8-turn will work, but you will not be able to run for long. With my geared setup, a 5-turn 05 made numerous passes right at 53 mph.

The boat will need to be built light - mine have weighed 27-29 ounces ready to run. The sponsons will need a high angle of attack, the flex cable or wire drive will need to be very drag-free, the power wires will need to be very short. Props for the 19-turn will be x435, y535, 1735. For a 10-turn, an x432, x435, 1732. Watch for heat, and don't do the noob stunt of running the boat until the pack dumps the first time out. :blink:

THANK YOU! That is the info I was looking for !

Ron Jr