Miss Elam 1/12 Brushless Run reports

[barmonkey]

Hello all...just wondering if there are any run reports for this boat....

[AndyKunz]

There will be after tomorrow (weather permitting). Darin was planning on running his race-prepped one during at their event Saturday.

Andy

[JimClark]

And I will be there to take pictures as long as he run's it after 12:00PM

[Ub Hauled]

And I will be there to take pictures as long as he run's it after 12:00PM

Sleepy head!!!

[JimClark]

Well kind of but I have to drop my wife off at a birthday party for a friend that is 10 miles away from the race otherwise I would be there earlier but i do work nights also.

Jim

[Ub Hauled]

Just kidding Jim!
I am sure that you have reason not to do it...

[barmonkey]

Good to hear...I've been following his "Race Prep" thread...unfortunately much of what he has done is beyond my capability and understanding.

I will definitely cover that big hole at the back of the cowl and add some flotation.

[Darin Jordan]

I have the Elam setup with my EagleTree, and I took the time to also setup the airspeed sensor, so I should be able to get some reasonably accurate speeds around the course as well... I'll let you know how it turns out....

[JimClark]

WooHoo looking forward to tomorrow. Now if the rain will just hold off

[Doby]

What, is Darin afraid the boat will get wet??

[AndyKunz]

Actually, he has a real good reason NOT to risk getting sick this weekend.

Andy

[Darin Jordan]

See my Elam prep thread for an explanation as to why I didn't make the race... Basically, my car broke down on the way up there and after having it towed home, I spend the afternoon fixing it... Needless to say... I was a little bummed... Happy to be warm and dry though...

[Darin Jordan]

Ran my first race weekend with the Elam this past Saturday (April 11th)... Won all three heats and the overall for the day.

I also used the ProBoat BJ26 motor and ESC in my P-Spec OPC Tunnel and won that class as well. Ran the ProBoat BJ26 motor with an B125 ESC in my 1/10th scale and won that class too...

According to my data recorder, I hit 50mph in the first heat with an average for the race of around 40mph... similiar data for the second and third heats as well, with slightly lower max speeds in the 47-48mph range. Props used were X645 (uncut), X646 (detounged and cupped), and something that started life as a Y547, but is now only 42mm or so and has severely spoon shaped blades... Handling really improved with this prop.

I had a sponson walk issue all day, but only when the boat is disturbed laterally, as when you encounter another wake... After trying several props and making some adjustments, I'm almost convinced it's the curved turn fin causing lift. I'm going to make a straight turn fin to try next time out and see if that helps... I couldn't stay in the thottle past the 2/3rds lenght of the straight because of this hop. There is definately more speed there to be had. Cornering was AWESOME.

Ran the boat with the wing as well... Maybe there is something to be gained by removing it. I may try next time out.

I had video, but my camcorder has failed and actually had parts falling out of it when I got home, so I'm can't play the tape back to see if it actually recorded anything.

I do, however, have all the data from the Eagle tree, with I'll post as soon as I can get it transfered to postable images.

Average amps for a heat were right at 55 for the first two heats, and dropped to 48 for the final heat. Peaks/Spikes were hitting near 100amps.... RPMs ranged from 17,000 to 24,000 or so (off the top of my head)... with averages around 19,000... Temps were all pretty cool, but I have a temp probe on the motor and batteries, so I'll post the actuals of that as well.

Overall, I'm very please and think this boat has a shot. It's definately competitive, but we'll see how it does when run against a whole mess of UL1s. I think the Elam behaves better, but we'll see if that's enough to overcome the hotter UL1 motor setup.

[Ub Hauled]

That's great news Darin, thanks for the post.
Did she take the higher speeds well or was she loose? How about in the chop nice handling?
Could you tell me a bit about that?

[Darin Jordan]

Jan,

I'm going to hold a complete opinion of that until I try a different turn fin. In the straights, the boat was good until it encountered a wake or ??? It is my opinion at this point, having made the adjustments I've made, that the curved turn-find was causing it to lift and pitch, generating a sponson walk. When the water was just choppy, it seemed rock stable by the third heat, and it all cases, it cornered GREAT... No issues there that I could tell. I just think that the turn fin needs some attention.

I'm very optimistic at this point, but more time and development obviously needs to occur before one can say anything definitively.

There was another UL1 there, and some other fast boats, but Brian Buaas and Larry Kirby weren't there, and Greg Schweers wasn't running that day, and they are the big-dogs in our club for LSH. The real test will come once we have a full complement of competitors. The data, however, looks promising.