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Old Jan 22, 2012, 06:02 PM
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Come on Bill it's Monday morning for some of us, good job i got nothing to wake up for

Typical Scorp has to go one better or half a dozen
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Old Jan 22, 2012, 06:26 PM
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It just finished uploading. Thanks for being so patient.

Hereís the 1st outing on my Promise Hobby Falcon cat. The video has some subtitles so itís fairly descriptive. Iíll just add that after the final section of the run that the hottest thing was the caps on the esc at 155*. Second were the motor and battery bullets at around 145 motor at 137.
I think I need to add a little more positive to the strut angle or possibly move the cg back a little. Iíd prefer to do it with strut adjustment though. I like my cats around the 35% mark. Overall Iím happy with itís 1st outing.

01-22-12 Falcon Cat.wmv (3 min 54 sec)
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Old Jan 22, 2012, 06:40 PM
I feel the need for speed!
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Looks great!!! Thats the first run? You had that sucker dialed in..........what prop again?
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Old Jan 22, 2012, 06:44 PM
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Very nice maiden Bill, it needs very little in the way of adjustment by the looks of it

Well worth the wait, Good night
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Old Jan 22, 2012, 07:08 PM
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Quote:
Originally Posted by osprey21 View Post
I must say Bill, she ran quite well for her first "wetting", so, I give you... Domino Derval.


I mostly wanted to get the picture on this page too.
But, thanks again for running camera.
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Old Jan 22, 2012, 07:13 PM
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Thanks scorp and rotorkilla.
It's got a little bounce to it at the high end of wot down the straight but was pretty close to right. Going to need to correct that before going any faster.

Scorp the prop was a X455/2 running 9s 2p
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Old Jan 22, 2012, 07:17 PM
I feel the need for speed!
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Quote:
Originally Posted by bill34207 View Post
Thanks scorp and rotorkilla.
It's got a little bounce to it at the high end of wot down the straight but was pretty close to right. Going to need to correct that before going any faster.

Scorp the prop was a X455/2 running 9s 2p
Hmmmm, wonder what the 10s prop should be..........you gonna try the x455 on 10s? Temps have me kinda baffled at 137* on the motor for 9s and a smallish prop. However, these 2028's dont mind 160*.............
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Old Jan 22, 2012, 07:52 PM
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Quote:
Originally Posted by scorpion1 View Post
Hmmmm, wonder what the 10s prop should be..........you gonna try the x455 on 10s? Temps have me kinda baffled at 137* on the motor for 9s and a smallish prop. However, these 2028's dont mind 160*.............
Keep in mind I ran 8+ laps (total) in that video. I didn't even bother with unhooking the batts between part 2 and 3. Just a quick check for temps, saw it was dry, taped it back up and went again.

Where you had ambient temps in the 50's today we were in the upper 70's and water temps are a little higher too. That offset jog course I was running puts a lot of extra load on it as well. Not too bad as itr was though. I'd guess mid to upper 50's for speed.
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Old Jan 22, 2012, 07:57 PM
I feel the need for speed!
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Yeah..........i had estimated 58 yesterday

So for a strictly oval course the 455 may be the one for 10s.........??
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Old Jan 22, 2012, 09:02 PM
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Running 6 laps it should be ok. I guess there's some truth in cats have more drag than a mono. I've nen working at putting batts into the storage mode and the packs from this one were down in the 3.7 to 3.72 range when I started them.
I still have to download the data log but that's not going to happen tonight.
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Old Jan 24, 2012, 05:22 PM
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Finally got around to downloading the data logs this evening. It can definately handle more prop and/or higher voltage.
Peak amp draw was under 200, peak watts 6161, peak rpm in the 27k range. The internal temps will scare ya unless you keep in mind that those readings are coming right off the fets.

Kind of wish I'd unplugged the packs between the 2nd and 3rd sessions that long pause between really took the average readings down.
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Old Jan 24, 2012, 06:37 PM
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Looks like right in 5000 range for average watts while running. I'd try the ame prop on 10s............should get you up into the 200a area and 7-8000 watts.
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Old Jan 24, 2012, 07:50 PM
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I just got through raising the strut about 1/4" and put a thouch more positive in it. Thought I was already about that much above the sponson bottoms but was only about 1/16". Guess I didn't have it on a good level surface the 1st time. (my sprintcat has the strut 1/4" above the sponson bottoms)
I'm really wanting to get rid of the minor handling issues before making it go much faster. Need to get the nose riding just a little higher to get rid of that little bit of porpoise it's getting.
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Old Jan 24, 2012, 07:59 PM
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It didn't look that bad in the vid Bill, that movement you made in the strut might of been the reason for the porpoising
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Old Jan 24, 2012, 08:14 PM
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Quote:
Originally Posted by osprey21 View Post
I must say Bill, she ran quite well for her first "wetting", so, I give you... Domino Derval.


Beautiful boat, Bill......oh wait. There isn't a boat in the background. My bad
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