Raptor Rigger Build

[Darin Jordan]

Just for fun, when I disassembled my 32" WildThing P-Mono that once held the 2-Lap record, I weighed JUST the mounting hardware (screws, nuts, etc...).... 1.8oz! THEN, I weighed all the velcro I used in it... another 2oz!

[Doug Smock]

Looking good Keith.
You've been romancing her for quite a while. It's time to marry her and bring her to the pond!!!

Doug

[detox]

LOTS of prop testing must be done first. I have a custom GrimRacer L42 X 66 that has been cupped to 3.6"...I hope it's fast.

Any other good prop suggestions?


...

[raptor347]

Here are a few others:
ABC H-10 cupped up to 3.9 (probably my favorite)
ABC 1816
1450 with lots of work

It's looking good.

P.S. just use the water jacket.

[detox]

Here are a few others:
ABC H-10 cupped up to 3.9 (probably my favorite)
ABC 1816
1450 with lots of work

It's looking good.

P.S. just use the water jacket.

Brian, I am very happy you answered that question. I have the H10 also.


...

[Fluid]

There are lots of ways to make it lighter, aluminum bolts and locknuts, carbon fiber turnfin bracket, wire drive, etc... Weight can be added to critical areas using stick on lead weight if needed.

Ten years ago and more we worried about reducing the boat's weight as much as possible due to low power and high cell weight, and some used aluminum fasteners, etc. What we found was - a lighter boat, a lighter pocketbook - but no difference in performance on the water. Reliability is far more important than an ounce or three of weight difference. Far better to add weight as a structural feature than to band-aid on some lead. Two identical boats, one two ounces lighter than the other - the race always goes to the better driver/more reliable boat.


.

[detox]

EDIT: Because of tight fit, I decided not to use the Black OSE water jacket.

I had to sand the inside edge of the OSE water jacket larger so it would fit over the UL-1 motor. This jacket is a very tight fit using the supplied O rings. I have yet to get it to slide over UL-1 motor without damaging them. I will try to find some thinner O rings.

[detox]

I did not like the way my UL-1 water jacket fit so I will be using the aluminum coil for now. These 3600mah lipos fit verygood. My Turnigy 4000mah lipo requires a little more manuvering. ESC wires are shortened and soldered to motor wires.

DO NOT SHORTEN MOTOR WIRES ! I once shortened the motor leads on SV27 motor and played hell trying to resolder the burnished wires. I had to sand off burnished coating to resolder.

[detox]

UL-1 turnfin is installed. My Raptor rigger weighs slightly under 4 lbs ready to run using 3600mah lipo. The Turnigy 4000mah lipo will add 81 grams or 2.9 ozs more weight.

[detox]

To install the wider Turnigy 4000mah lipo (50mm wide). First I have to remove ESC , install battery, then slip ESC back in.

[detox]

WOW ! Today I finally ran this rigger. I am guessing speeds to be 57-60 mph using the custom GR 42 x 66L prop. Hulls seems to be riding heavy on the stern (COG is set back too far). I had to adjust strut all the way down touching ride pad with some negetive angle (maybe more negetive is needed). I may add a little more weight to the front to see if that helps loosen up stern. Also need to try more props. This rigger handles well and turns on a dime.

Here is picture of final strut adjustment.

[Doug Smock]

Congrats Keith !!!

[detox]

Using GPS speed was only 53.3 mph. Need to get faster.

[Darin Jordan]

Using GPS speed was only 53.3 mph. Need to get faster.

I think it's VERY funny that we are complaining these days about "ONLY" going 53.3mph with a power system that costs under $150.00 and comes stock in a RTR boat... Especially, when we first started proposing the idea of setting up classes based on this power system, people balked loudly...

[Chuck E Cheese]

i thought 57-60 sounded fast on a 42mm prop. try starting with the prop/ on my rigger with that motor i am running a 1450 that is barley cut down. my temps still come in around 110 degrees with cheap batteries (turnigy 3600's 30c).