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TOPIC: D-14 RTR 18 hydro rules

D-14 RTR 18 hydro rules 4 years 3 weeks ago #47

Guys tell me what rules to keep and what to get rid of. PLEASE if you dont run these boats or dont plan to dont answer Mike
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #51

Just thought I would mention a few things of concern for some people:
1) Half Mill (cutting the course) Keep it or leave it? Personally I like it, as it generally creates a better start. However, the rules should be formally spelled out and enforced.
2) Pipes (aftermarket) Allowed or not? I say not...
3) Currently we have 5 lap heats...some want to move to 6 lap heats. Personally I don't care either way...although it really doesn't save much time.

With 19 RTR's at the Fall Evansville race, this is certainly a legit class!
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #53

My input would be :the engine must be stock and one that was originally available (present or past) with the boat.
Aftermarket pipes i think should not be used.

After market skid fins must be stock or purchased and readily available to everyone no homemade fins.

fuel tanks and radio boxes i think can be changed to either a homemade box or a purchased one, tank i think can be changed also.

cowling's i think can be changed ( adds personality to the boat)

rear wings must be used.

no major hull mods or changing the hull.(can flatten and straighten out ride surfaces if needed)

can be painted and decaled in any form racer wishes (no profanity or other disparaging remarks)

radio can be changed to a better system.

no canard wing ( falls under hull mods).

5 laps is good as current fuel tank is kind of small, cutting course from front to back only is good and only after one full lap after launch. if cutting course oncoming boats have right of way. if you cut off boat and boat dies should incur a DQ , if boat does not die then one lap penalty.

Yes I know this is somewhat long winded. but Mike you did ask, haha.

this is my 2 cents on it.

oh almost forgot just remember this is rtr a lot of kids run in this class, including mine next year. so dont get huffy if someone has a hard time driving they are learning with this class. (this is not directed to anyone in particular just a statement)

thanks,
chris thornton
Last Edit: 4 years 2 weeks ago by chris thornton.
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #54

I think the pipe needs to go although I just bought one :(
I think all hardware should be able to be changed, due to Aquacrafts poor availability
I think fuel tank and radio box should be able to be replaced
Driveshaft definately needs changed, for any type of durability
Basically, leave the engine, hull and exhaust system alone. Those are the three big performance issues as far as speed goes.
The hull should be able to be squared up on bottom ride sponson surfaces. ALthough to be fair, I think there needs to be a general template, gauge to check bottom for correct height of bottom of sponson to tunnel floor, width of tunnel and width of sponsons.
Last Edit: 4 years 2 weeks ago by Jeremy Linney.
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #55

I agree with being able to change shaft, strut and rudder. stock ones are crap
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #56

I think that the engine, exhaust need to be stock from the mfg of the hull.
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #57

Mikey, Could you post our current District 14 RTR rules...It may help keep things a bit simpler....

Until then...Chris and Jeremy, I think most things you have addressed are in our current rules. With the exception of Cowl mods, adding a Canard (which would be a hull mod) and changing the strut and rudder...which can break.

If the strut is changed, the strut should extend to exactly where the stock strut extends from the back of the transom.

Not sure how I feel about the rudder. I found out by accident, that a smaller rudder will yield a bit more speed.

One thing I am not sure that has been addressed, Is restrictions on what exactly a RTR is. If I remember correctly, the engine size is limited to .18. I don't recall if there is a restriction for hull size?
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #58

I did look up the RTR rules on the current on-line rule book (Section H)...they haven't updated it since 2005. The rules still limit engine displacement to 0.165, hull size from 20 to 43 inches, and 4 laps. So everyone is in violation! You must return your trophies immediately =)

I know there was a provisional or trial set of rules in one of the Roostertails, but haven't found it yet. Not really wanting to spend any more time on that right now. Looks like that is something wich could be added to the web-site...a tab which will link to all trial class rules...
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #59

Right off IMPBA14.com RTR 18 hydro series app. Changes you can make include:
 Any paint scheme
 Any Radio System
 The Exhaust may be changed to any legal exhaust per noise rules.
 The engine may be changed as long as it is from the same manufacturer as the boat hull and doesn’t exceed the .18 cc max. (ie. you may switch the engine in a ProBoat as long as you use a ProBoat manufactured engine. This boat comes with a ProBoat .15 and may be changed to a ProBoat .18)
 In the interest of time during all RTR races the Half Mill course will be in effect. Half Mill Means you throw your boat in the water, complete one lap, then you may cut the course between the number 6 buoy and the start clock. Boats coming down the back straight have right-of-way, you may move into any lane not taken by another boat as long as you have 3 boat lengths. This will tighten up the start and give us some GREAT RACING. Keep it coming guys we need input from all interested parties. PLEASE email your club members and friends who run these in D-14 Mike
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Re: D-14 RTR 18 hydro rules 4 years 2 weeks ago #60

Class is SPORT RTR .18

I think we need to decide on the class intent first.

1. Intent
The intent of this class is to provide a low cost, highly competitive class of racing radio controlled model boats. The rational for making such a class is to provide a place for new boaters to experience our hobby, and yet be an attractive class to even the most seasoned racer. These goals are accomplished by making the class both low in cost using readily available high volume production boats and parts, and by keeping the rules up to date to allow all boats to have the same performance level.

Now lets define what a legal SPORT RTR .18 is.

2. Legal Ready to Run Boats

A legal ready to run boat must meet ALL of the following criteria.

a) The boat/engine/radio system must be available as a ready to run package retailing for a maximum of $400.00.
b) The boat as designed and sold must use nitro power not to exceed 0.18 cubic inches (3.0cc).
c) The hull must be a 3 point suspension hull, at least 25 inches and no more than 33 in length.



Now we need to define what is legal to change or modify on the boat because of broken parts, better quality parts, or to encourage competition.

3. Modifications

a) Any Paint Scheme provided it is not profanity or offensive
b) Any engine / exhaust / hull combination provided it all comes from a legal boat as outlined in Section 2.
c) Any rudder, turn-fin, engine collet, shaft, prop, or strut may be used so long as the strut is not deemed an advantages planing surface compared to original equipment.
d) Any nitro fuel is allowed
e) Any control equipment including radio box, electronics, linkages, and battery may be used, as long as placement is not deemed advantages towards the Center of Gravity of the hull.

4. What is illegal?
a) The rear wings, if originally equiped, must remain intact.
b) Additinal wings, spoilers, air dams, or fins if deemed to stabilize the boat at speed are NOT allowed.

5. Racing Rules


These are just my oppinions and suggestions.

We need to revise item #1 until it is agreed upon, then #2, and so on.
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