JAE Mini Sprint

[Doug Smock]

The testing is over.
We met our goal and this is what we have landed on for under 200 bucks READY TO RUN.
Rod has all the component information and will post it in this thread along with a time frame for the plans for this boat.

This run is with a $12.00 4400kv outrunner, 2s 2200 25c pack, with a X431 prop.

http://www.youtube.com/watch?v=oxZk23dugmU

I ran this boat for one mile with the above set up and collected the following data.
74 degree day no water cooling.
Motor 139'F
ESC 101'F
Battery 103'F
I put 1716 ma back in the pack after the run.
Speed with a Garmin 101 taped to the cowl was right at 40mph.

Just for grins I put a 3s 2200 25c pack in the boat with the above set up and here is the run. The boat handled the additional speed without a problem but as we'd expect this was the upper limits of this set up.

http://www.youtube.com/watch?v=rCRlEedEowU

Phil Pace with Vac-U-Boat is working on cowls for it.
Man this was a fun project!!!!
Thank you Mr.Geraghty
Doug
PS I just realized I don't have pictures of the boat. I'll take a couple tomorrow and post them here.

[SweetAccord]

Nice!

[Diegoboy]

How long is she?

[geraghty]

How long is she?

17"

[Doug Smock]

Rod your quick.

[sailr]

Lil booger scoots!

[geraghty]

The testing is over.
We met our goal and this is what we have landed on for under 200 bucks READY TO RUN.
Rod has all the componet information and will post it in this thread along with a time frame for the plans for this boat.

This run is with a $12.00 4400kv outrunner, 2s 2200 25c pack, with a X431 prop.

http://www.youtube.com/watch?v=oxZk23dugmU

I ran this boat for one mile with the above set up and collected the following data.
74 degree day no water cooling.
Motor 139'F
ESC 101'F
Battery 103'F
I put 1716 ma back in the pack after the run.
Speed with a Garmin 101 taped to the cowl was right at 40mph.

Just for grins I put a 3s 2200 25c pack in the boat with the above set up and here is the run. The boat handled the additional speed without a problem but as we'd expect this was the upper limits of this set up.

http://www.youtube.com/watch?v=rCRlEedEowU

Phil Pace with Vac-U-Boat is working on cowls for it.
Man this was a fun project!!!!
Thank you Mr.Geraghty
Doug
PS I just realized I don't have pictures of the boat. I'll take a couple tomorrow and post them here.

I want to thank Doug for all the testing.....As you can see the boat is rock solid and exhibits absolutely no bad behavior.....
The "mini-sprint" went into the water under our $200.00 target price,radio and all.I used the Zippkits .12 rudder,turnfin and radio box seals.I will put together a bill of materials showing all the equipment we used in the boat.
I plan to post the PDF plans on line in the couple of weeks.....when this happens I will post a link to the JAE "mini-sprint"plans on this forum...... As with all JAE plans,they will be free and all you will have to do is download the plans to a CD and take them to a KINKOS and have them printed.The plans will include full size templates for building the boat.

[geraghty]

Rod your quick.

[siberianhusky]

Now I have my next build! Thanks so much! I have a .12 nitro, started a 21fe and now have to build this one!
Best running riggers I've ever had!

[regisparent]

do you plan to sell just the kit without electronic?

[geraghty]

do you plan to sell just the kit without electronic?

I really do not know.....Zippkits will be making that decision.....The JAE design team furnishes the design,the free plans,builds a prototype and does the testing.
After completion of the testing JAE will release the plans for production.
At that point the entire JAE design team is off the merry-go-round.
All marketing decisions will be made by Zippkits......

[geraghty]

I want to thank Doug for all the testing.....As you can see the boat is rock solid and exhibits absolutely no bad behavior.....
The "mini-sprint" went into the water under our $200.00 target price,radio and all.I used the Zippkits .12 rudder,turnfin and radio box seals.I will put together a bill of materials showing all the equipment we used in the boat.
I plan to post the PDF plans on line in a couple of weeks.....when this happens I will post a link to the JAE "mini-sprint"plans on this forum...... As with all JAE plans,they will be free and all you will have to do is download the plans to a CD and take them to a KINKOS and have them printed.The plans will include full size templates for building the boat.

Here is the bill of materials we used on the prototype JAE Mini-Sprint FE.
Remember....there was no water cooling installed in the prototype........

JAE BILL OF MATERIALS

ESC – Hobby King 80Amp ESC/wBEC..$40.00
Motor - Hobby King TR22234-4400……$12.00
Battery – Turnigy 2200-2s-25C…………$10.00
Servo – HobbyKing CS929MG…………..$4.50
Radio – HobbyKing 2-channel wheel…….$17.00*
Turnfin – Zippkits……………………...…$12.00
Rudder – Zippkits ………………………..$ 16.00
Radio box seal – Zippkits…………………$5.00
Boom tubes – 3/16” carbon fiber
Poltruded tube-Goodwinds ……………….$5.50
Prop-X431 Octura plastic…………………$1.50
Flexshaft – Hughey 1/8” X 1/8”…………$10.00
Flexhex – Octura 1/8” X 1/8” ……………$10.00
Misc building materials...............................$20.00

For a grand total of $163.50

• The radio we used was the Hobby King GT2-2
• 2.4GHZ -2 channel wheel radio.Do not be fooled by the
• $17.00 price tag….this is one very good little radio.
• It is rock solid and works great…..

[BakedMopar]

oo oo oo me want me want.

[wparsons]

What were the temps like with the 3s pack? I think I'll probably run water cooling with mine, but the speed/handling looks VERY impressive!

[Doug Smock]

What were the temps like with the 3s pack? I think I'll probably run water cooling with mine, but the speed/handling looks VERY impressive!

The motors stator was 170'
The battery was 150' This is a old 2200 25c pack that I got used so I have no idea how many cycles are on, it and I'm sure I was over it's C rating.
I put 1675ma back in it after the run.
The ESC was 125'
I'd look for a lower kv motor to run on 3s.

D.