Out-rigger technical question - dihedral or not?

[1945dave]

I am looking to build a fast electric outrigger and probably have 15 various size Nitro and gas riggers in my shop right now. They all have one thing in common. Dihedral. I notice the very popular JAE 21 and the Mini Sprint have none. What are your experiences or opinion on this issue?

Dave

[grsboats]

I run both types nitro SGX(45/80/1.01 (dihedral) and now a nitro Jae 45 and a Fe (flat) and both are fast but the first ones hold better traffic or choppy water than the Jae's. Jae's follow what it's called the Flat plane technology good for all kind of races but better for 2 laps or saw in my opinion.Gill

[1945dave]

Thanks Gill,

That makes me feel better as I first raced Crapshooter outriggers back in 1971 and we tried everything and always came back to 3 degree dihedral. My experience with dead flat sponsons was they hunted and were not very forgiving. Yet with all the guys here on the forum that swear by the JAE series I wondered what changed by going to electric. What would you recommend in the JAE 21 size?

Dave

[Chilli]

There just isnt that many choices for FE riggers. The tubs for the nitro riggers are not tall enough for the battery and motor, and the boom locations make it even tougher to convert a nitro rigger to FE. The JAE kit is cheap, easy to build and requires almost no set up to run great (if you follow the directions). It was just the ticket for the P-Limited Hydro class which has become one of the most popular FE race classes. Brian Buaas's Raptor Riggers are awsome but are more expensive. The Renegade Rigger many feel is a little on the small side. That pretty much wrapped up our choices a few years back and I think... today.

[grsboats]

Well my Jae Fe is really nice but built for saw.It's my very first experienvce with an electric rigger and with few mods I did to it I'm very pleased with its performance.There are other guys in my club running in the P-Limited with Jae's Fe and for such a low budget boat compared with a SGX, ROADRUNNER,Jaguar,etc I agree with Chilli that its a good option.You can also make your own design based on this or that boat but if you inttend to compete better of stick to what others are running or get a try to a Zipp kit. Gill

[Doug Smock]

The JAE 21 FE is a great boat set up properly. I have built a ton of them and they perform right off the bench.

D.

[Doug Smock]

The JAE 21 FE is a great boat set up properly. I have built a ton of them and they perform right off the bench.

D.

[1945dave]

The JAE 21 FE is a great boat set up properly. I have built a ton of them and they perform right off the bench.

D.

Ever build one with 3 degrees dihedral in each sponson? I struggle to believe dead flat is better for heat racing. SAW maybe but heat racing?

Dave

[grsboats]

1945dave I 've seen lot of japanese videos where they use the same flat botton running fast and very predictable in all kind of waters so a well trimmed boat can always be a good surprise.From my lexperience running only riggers I personally prefer dihedral but this is me. Gill

[Doug Smock]

Ever build one with 3 degrees dihedral in each sponson? I struggle to believe dead flat is better for heat racing. SAW maybe but heat racing?

Dave

No sir, I haven't seen the need.
Build what works for ya.

D.

[jcald2000]

Easy to add 3 degrees to the JAE kit, let us know how it works for you.

[carlcisneros]

I race a JAE 21 Nitro with CMB Valvola for power and it runs on rails.
No mod to the boat at all.
I am in the process of converting a nitro kit over to outboard FE power.
I agree with Mr. Smock, don't touch them. they are great right off the building board.

I also Agree with Chilli on the inboard rigger kits. They do not lend them selves to swapping over to
FE power very well. boom tubes to close together, tubs too shallow, ect.
I have a new in box Jag2 that i wanted to convert to FE but do to the above, it wont work.

[Chilli]

I've read only a few comments by people (nitro guys) on another board that were not happy with how their JAE's handled. In almost all cases the boat was not set up as per the directions. With P-Limited power, my boat has run great heat racing for three seasons. It's stable, predictable and turns well. Allot of testing went into this boat. Build it like they tell you and you will be happy.