question about hydroplane

[Screamer-]

I have a question about R/C hydro

why the turn fin is on the right of the boat because real UNLIMITED have it on left I can post picture of real unlimited hydro to prove it

and I saw another post to spray foam on the hull and a lot of user said it's was a bad idea because water and gaz can go in the foam and the boat will have more weight and if you look at miss vegas this boat have already foam in it and a lot of user said it's the better buy than a proboat

but seriously i don't know if I go with the realist of the boat (because proboat are very realist) or solidity because the aquacraft look to be more solid

it's hard to choose

thanks

[mjmsprt40]

The turn fin is an easy question to answer. In full size, they make left turns on their race course so they need the fin on the left sponson. Our model races make right turns, so the fin is placed on the right side of the boat. In both cases, the fin is placed on the inside of the turn so it won't flip the boat in the turns.

About the foam: I'm not sure about that one, but my instincts are somewhat against spray-in foam. Pool noodles seem to be a better bet here, cut and place them in the hull as you can.

[Screamer-]

for the turn fin I know that I go to see real race of hydroplane but it's WHY the R/C is in right side

it's possible if I just want fun with mine when I bought one to change the fin of sponson and just take the boat to make left turn

[mjmsprt40]

I'm getting into conjecture here, so I could be wrong in what I'm about to say. Other experts, please feel free to correct as necessary.

Way back in the good old days, we were commandeering model aircraft engines to run our boats. They all had the engine rotation that is standard to this day, and that means that the prop (when seen looking at the boat from the rear) rotates in a counter-clockwise motion. Since we're only running on the lower tips of the propellers, a right-hand turn is easier for our models to make at high speed so that governs, to some extent anyway, how we place our turn fins for racing purposes. I'm not sure which way full size propellers rotate so I can't comment on that, but that is my unofficial version of the short history of model turn fin placement and why it's done that way.

If you're jsut running for fun, you can set your fin as you see fit. For that matter, you can change the rotation of your engine and get a propeller to match the new rotation. It's your boat so you can do as you please with it, and there's an arguement to be made that you're right if you're entering it in scale competions where looks can really make or break your chances to win.

[Old Sloppy]

Way back in the good old days, we were commandeering model aircraft engines to run our boats. They all had the engine rotation that is standard to this day, and that means that the prop (when seen looking at the boat from the rear) rotates in a counter-clockwise motion. I'm not sure which way full size propellers rotate so I can't comment on that, but that is my unofficial version of the short history of model turn fin placement and why it's done that way.



I can confirm this history, It's all True.

The reason air plane motors spin left handed is simple,
When the motor is mounted in a boat, the motor is facing the transom (mounted backward) this has the effect of spinning left handed.

I also ran out to the garage and examined the prop on my full sized Baja boat with Mercury outboard.
It is a right hander.

Harry :)

[Ron Olson]

Now to the spray-in foam seeing how the other question was answered. It's not a good idea to use it. Yes, it will absorb water and fuel over a short amount of time. Secondly, the foam expands, some a little, others a lot. The expansion can and has blown hulls apart separating the deck from the hull.

As for the Miss Bud and its variants versus the Miss Vegas, I'd go with the Vegas myself and just might get one. For the same price with more room, 6 MPH faster out of the box the choice is getting easier.

[Screamer-]

thanks all for your answer and suggestion

how many time did you have fun with the boat with the full of fuel in the boat

[Fluid]

how many time did you have fun with the boat with the full of fuel in the boatWhat the heck does this mean Screamer-? :confused: :confused: :confused:

.

[Hydro Junkie]

I was wondering the same thing Jay:)

[Muhammad Aidil]

Hi there all..I am just started in RC boating and decided to look forward buying the Miss Vegas U-18 Hydro sport.So far, is there anyone here who can post-up to me any pics or images of Miss Vegas that in action ? Please is there someone here whom can share their opinions or reviews on the Hydro Sport Miss Vegas ? I would greatly appreciated. Thank you so much !

[Old Sloppy]

What the heck does this mean Screamer-? :confused: :confused: :confused:

.

After two months of studying that statement, I think it means

" how long is your run time ( with a single fill up) ? "

Harry S.

[Hydro Junkie]

Now that IS a good question. How big is your boat? How big is your engine? What kind of boat is it? How much fuel does it carry? How much nitro is in your fuel?
All of these come into play on run times, but there are other variables as well. Considering all the variables, I could say 5 minutes and you might get 15 with the same boat because you run lower nitro and a smaller engine