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Mikado Logo 700 Xxtreme Mikado Logo 700 Xxtreme Helicopters Discussion |
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11-16-2012, 12:39 AM | #1 (permalink) |
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OK...I'll ask the 14S question!
How does the 700 do on 14S?
The supplied components in the combo kit look like they'd support a 14S battery for an aggressive (2100-2200rpm) set up giving 18-15% headroom for the gov. Come on...Who's already tried it?!?? |
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11-16-2012, 01:20 AM | #2 (permalink) |
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For sure 14 s will work, im a believer of higher volts lower amps, however the difference in performance between 12 and 14 is negligible, the gains will be lower temps longer lipo life.
Im slowly converting my speed machines to 14 s where constant draw is much higher than 3 d but lighter 7 s lipos are scarce so you dont eant to fly the 700 with 5000 packs. 4400 yes. As soon i get my hands on some good 4400 7!s packs ill convert for sure
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Tdr quantum 4530 1.4 yy h/ jive120 beastx, Vibe e 8 12s mx 700 1.32yy vbargov fusionhawk, Banshee nr 36 kosmik 200 pyro 800 1.4yy 455kv 14s beastx, xtreme 700 pyro 850 1.5yy 14s kosmik 200 |
11-16-2012, 07:21 AM | #3 (permalink) |
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Thats exactly my plan to go 14S right off the bat. These GenAce 4400 7S only weight 25grams more than a 5000 6S. I think the Scorpion Ultimate 520kv motor is alittle high of a kv for 14S hence why i got the Pyro 800-480kv motor for it. Im hoping this is gonna be a monster power setup :-) Now i just need RH to ship my L700 hopefully sooner than later. Tony |
11-16-2012, 10:37 AM | #4 (permalink) | |
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Team Mikado USA!!! Team Scorpion! Logo 600SX - Scorpion 4035-560, 10s 4400 packs Logo 690SX - Stock Scorpion motor, 12s 4500 packs |
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11-16-2012, 11:54 AM | #5 (permalink) | |
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11-16-2012, 10:18 PM | #6 (permalink) |
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Exactly what i thought, Even more difficult to get in the correct size, im on another planet remember. With lipo ban im stuck with tp 6 s till further notice.
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Tdr quantum 4530 1.4 yy h/ jive120 beastx, Vibe e 8 12s mx 700 1.32yy vbargov fusionhawk, Banshee nr 36 kosmik 200 pyro 800 1.4yy 455kv 14s beastx, xtreme 700 pyro 850 1.5yy 14s kosmik 200 |
11-17-2012, 05:18 AM | #7 (permalink) |
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Tony what's exact weight of the 4400 7s packs you show?
You're also going to need a 16 tooth pinion to get within range with that 480kv motor and 14s, that pinion does not exist yet to my knowledge.
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...Once upon a time there were Nitros, flybars & frequency pins...Shawn |
11-17-2012, 05:22 AM | #8 (permalink) | |
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The difference between knowing your s**t and knowing you're s**t! Optipower - Kontronik Drives
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11-17-2012, 06:05 AM | #9 (permalink) |
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checkout the gens ace 4600mah cells, very light
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honey bee king II |
11-17-2012, 08:20 AM | #10 (permalink) | |
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According to Mel's HS Calc ill be able to hit 2130 at the top with the best gov performance, im planning on setting up a 1900,2000&2100 rpm |
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11-17-2012, 02:18 PM | #11 (permalink) |
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Alright well 16t with 14s - 480kv is within 5% of what 520kv is with 12s. For sure keep us posted. What's weight of that pyro? I'm interested in comparing total extra weight vs existing stock.
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...Once upon a time there were Nitros, flybars & frequency pins...Shawn |
11-17-2012, 02:39 PM | #12 (permalink) |
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With the stock set-up and fully charged packs my max HS is 2220 rpm, which is lower than expected. Based on this, running at 2050 governed is only 8% headroom.
Multiplying 14/12 x 2220rpm = 2590 rpm. If running an aggressive 2200rpm HS this would give 15% headroom which is ideal. I agree a 16T and/or lower Kv motor is best, but would love to hear some real world results from those that already have some 14S packs available for testing. |
11-17-2012, 09:45 PM | #13 (permalink) | |
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Tdr quantum 4530 1.4 yy h/ jive120 beastx, Vibe e 8 12s mx 700 1.32yy vbargov fusionhawk, Banshee nr 36 kosmik 200 pyro 800 1.4yy 455kv 14s beastx, xtreme 700 pyro 850 1.5yy 14s kosmik 200 |
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11-19-2012, 10:19 AM | #14 (permalink) |
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Looking forward to a flight report, I may go the pyro 800-48/gens ace 7s 4400 route as well.
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11-20-2012, 09:20 PM | #15 (permalink) | |
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11-20-2012, 09:48 PM | #16 (permalink) |
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Nope havent but contemplating one for l700 although havent even unboxed it yet ( need something under the tree) the 4525 seems to hold its own in my mates one although he doesnt fly nearly as hard as me so will see as time moves on. If i can get hold of some 7 s lipos i would probaly rewind a 850 for the logo
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Tdr quantum 4530 1.4 yy h/ jive120 beastx, Vibe e 8 12s mx 700 1.32yy vbargov fusionhawk, Banshee nr 36 kosmik 200 pyro 800 1.4yy 455kv 14s beastx, xtreme 700 pyro 850 1.5yy 14s kosmik 200 |
11-21-2012, 08:12 AM | #17 (permalink) | |
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This was posted in another thread, but is better for this discussion:
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Here's what I'm seeing: My 100% throttle HS was re-checked and measured 2270 rpm w/ 65C packs right off the charger. This indicates that I have closer to a 500kv motor vs. the specified 520kv. So running at 2050 only gives 9.7% head room at the beginning of flight and is working the batteries too hard. As in my 1st post, I still believe that simply running 14S on this stock set up will work with a slightly higher HS. 14/12 x 2270=2648 max theoretical HS. Allowing for 20% governor headroom gives a target 2118 rpm HS. 14S 4400 packs would only add 48g, or less than 1% of AUW. What I had not considered was 13S 13/12 x 2270=2459 max HS. Staying at the current 2050 gives 17% headroom, which is perfect. The 13S 5000 setup should add approx 140g, or approx 2.5% AUW, but will also put 8+% more energy on board. So the questions (mainly to Dave): What is your max HS on 12S? (This is to check the motor kv.) Have you tried the 13S 5000 setup on the stock motor and 713mm blades? At what RPMs? I'm not surprised the 753's were too much for this setup, but would love to hear a 13S flight report on 713's at ~2100rpm. Thanks! |
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11-21-2012, 08:30 AM | #18 (permalink) |
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you should check kv with no load on the motor and measure rpm and voltage simultaniously. As you noticed blades will already slow it down and the voltage of the battery will sag rapidly immediately after charging.
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11-21-2012, 08:58 AM | #19 (permalink) | |
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