Front Wing in RC Boats

[Juraj]

hey have you maybe thought of using a gyro to adjust the angle of the wing? seems like that would be the best option ... just a thought

[Fluid]

hey have you maybe thought of using a gyro to adjust the angle of the wing? seems like that would be the best option ... just a thought

This has been tried many times with limited to no success. Things happen too fast with a small fast boat and under/over control is a big problem. Gyro and servo speed have been limiting factors in the past but current systems may work better. Too, it is one more thing to go wrong. KISS still seems the best policy.


.

[Juraj]

Well I think the helicopter guys are using some pretty high speed stuff .

[Fluid]

Boats are not planes, and a 2" corrective movement will not crash a helicopter. That much movement of the bows can send a hydro straight off the water. You asked and I answered. If you want to argue this topic I suggest you start your own thread.

[Juraj]

I'm not going to argue with you but I know that is false , a quarter second of the wrong input would definitely send my heli into the ground.

[gsbuickman]

So what would you think works better, a 1\2" air dam between the sponsons, or a downforce spoiler on top of the transom ?. I made an air dam for my UL-1 with a piece of 1/2" aluminum angle from homer depot, before kintec started selling them. after experimenting with positioning it worked great .

[Fluid]

I'm not going to argue with you but I know that is false , a quarter second of the wrong input would definitely send my heli into the ground.

FIne, if it is so easy, make it work. There would be a LOT of interest if it did under racing conditions.


.

[Juraj]

I don't have any boats that need it but you know what , just for the hell of it I'll try it . what is the boat you are trying this on?

[Fluid]

It is a full custom build, but any 30" plus P Hydro would work. Remember this quote from post 17:

"Gyro and servo speed have been limiting factors in the past but current systems may work better."

I hope you succeed, in the past no one has done it reliably for real world racing conditions. I have used gyros myself but only for yaw corrections.


.

[704Authentic]

14 Prototypes.

I made the wing. It is 2 inches wide. Look carefully at the shape.

It took 14 different prototypes, to finally find the "sweet" spot for this one.
Hope you have better luck.


Aquacraft UL-1 AirFoil (#14)

http://www.offshoreelectrics.com/pro...1-foil&cat=123

[704Authentic]

[704Authentic]

I don't have any boats that need it but you know what , just for the hell of it I'll try it . what is the boat you are trying this on?

Any progress?

[704Authentic]

"Happy Birthday!"

Several years ago I built a VS-1 for P-Ltd OPC racing. Porpoise city. Not yet experienced in hull/setup tuning I experimented with a rather large set of wings (UL-1 tailfins) to see if they would keep the nose down. , Huge as they were, they did nothing.

https://www.youtube.com/watch?v=WX_bLgJGKAI

After further testing with other boats my conclusion, subject to debate by more learned minds, is that aero devices on the nose are ineffective at lower speeds. At some greater velocity they may have some effect but I can't say what these speeds are . None of the SAW Competition rigs that reach upwards of 140 mph have any aero doodads on them if that means anything.

"Happy Birthday!"

[properchopper]

"Happy Birthday!"

Thanks ( 70 trips around the Sun & still playing with toy boats )

Oh BTW I ran the last 4 rounds of PLC this season with the downforce goodies you sent me. PLC competition is gaining in hull speed and I can jack some more top end by moving the CG way back. To reduce probability of a blowover I used a pair. No blowover ('tho did blow up a 2030 in one heat )

DSC06122.JPG


Super SAW next month & I'll try the other pair you sent me on my record-holding Drifter S (which does blowover on the uphill runs which has kept me from bumping the numbers)