Bought a mean machine off of the swap shop here. $110 del for the hull, drivetrain and servo. needed a motor, speed control, prop, RC and batteries.
this thing takes a lot to get up on plane! Ok, it weighs in at 5.5 pounds RTR. the drive train is nice and free, gap for flex shrinkage. Bottom of the strut is even with the bottom of the sponsons and level. I tried a 38mm prop, no go. Then 40, 45 and then a 47! The 47mm plastic prop works and gets it up on plane. I was running 2s, 3s and 4s. COG is like 9.5" forward which is 32% of hull I believe. Prop is about 1.75" behind transom.
What size props are others running?
Oh, I decided to see how cheap I could build this thing! I went with a Turnigy outrunner for $19! A turnigy 3648-1450kv motor, we will see.
I also bought a hobby king SS 90/100 speed control, water cooled and proofed it. Added a BEC chip to the heat sink, works great for $30 so far. Added a prop and for $160 I am RTR. Used my Turnigy 20C batteries for right now.
Made my water cooled motor mount. So far, everything is very cool!
pics attached, video coming
Brian
this thing takes a lot to get up on plane! Ok, it weighs in at 5.5 pounds RTR. the drive train is nice and free, gap for flex shrinkage. Bottom of the strut is even with the bottom of the sponsons and level. I tried a 38mm prop, no go. Then 40, 45 and then a 47! The 47mm plastic prop works and gets it up on plane. I was running 2s, 3s and 4s. COG is like 9.5" forward which is 32% of hull I believe. Prop is about 1.75" behind transom.
What size props are others running?
Oh, I decided to see how cheap I could build this thing! I went with a Turnigy outrunner for $19! A turnigy 3648-1450kv motor, we will see.
I also bought a hobby king SS 90/100 speed control, water cooled and proofed it. Added a BEC chip to the heat sink, works great for $30 so far. Added a prop and for $160 I am RTR. Used my Turnigy 20C batteries for right now.
Made my water cooled motor mount. So far, everything is very cool!
pics attached, video coming
Brian
Comment