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Old Oct 14, 2002, 09:05 PM
BEC
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In my case loose cells from David Hsu at edogfight.com. Pack assembly by me (which is why they're kinda ugly - I HATE leadless solder and every time I use it I vow never again....).
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Old Oct 14, 2002, 09:11 PM
an earth bound misfit, I
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St. Pete, Florida
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EDogFight also sells packs of the 1100's. I just got 2 8 cell packs. They come in other cell counts too.

Since I fly both Sport and 3D wings I got them in two sticks of four. Eight side by side will fit but are slightly longer so make it more difficult to get the CG correct.

The other source is the Wattage 1100 packs, wherever Wattage is sold. www.hobbypeople.com
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Old Oct 14, 2002, 10:02 PM
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okay..thanks..next question..where do you get the Mini AC1215/16 motor..I looked but the only place I found them was out of stock
Thanks guys..this is tons of fun
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Old Oct 14, 2002, 10:28 PM
A Clinger
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Butte, MT
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www.Hobby-lobby.com is where I bought mine.
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Old Oct 14, 2002, 11:41 PM
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United States, CA, Ventura
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I have found them at Northeast Sailplane, Todd's Models, and Aircraft World.

Todds and NESail have the cheapest prices, but we are only talking about $5 US difference max.

Mike
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Old Oct 15, 2002, 05:15 AM
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thanks..I was at Northeast Sailplane but couldn`t find them..I`ll look again..Todd`s is out of stock
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Old Oct 19, 2002, 08:24 PM
Space Coast USA
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BEC, what gear ratio are you using? 8x1100/10x7 = 4750rpm

My 1215/16 with a JETI 18 turns the APC 10x7E with an 8x1100 pack at 5300 rpm using a MPjet 5:1 box.


hoppy
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Old Oct 19, 2002, 11:13 PM
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FYI:

In my MiniFlash, my MiniAC 1215/16 with a Phoenix 25 and 8x720NiMH(!) in a GWS 5.33:1 gb turns a 12x6 prop at 4800 RPM drawing 7.1amps. I don't have 1100s yet, though I should soon.

The reason I bring this up is that my gear ratio is taller, and I'm swinging a bigger prop and I'm using substantially smaller cells, yet I'm only running at 10% fewer RPMs than you. I would have expected a larger difference.

Anyone else have MiniAC 1215/16 numbers to share?

--Mark
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Old Oct 19, 2002, 11:33 PM
BEC
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Quote:
Originally posted by hoppy
BEC, what gear ratio are you using? 8x1100/10x7 = 4750rpm

My 1215/16 with a JETI 18 turns the APC 10x7E with an 8x1100 pack at 5300 rpm using a MPjet 5:1 box.

hoppy
That's a GWS B ratio box - 4.43:1 I think. Depending on which Jeti you may be running more timing advance than I (MGM ComPro 18A). Also, the 10X7 I quoted is the slowflyer prop. I'd expect the thin-Es to unload a bit more.

Do you have a current reading? My figure above is about 12A. It's also a bit into the charge, not the initial surge.


Mark, those are pretty remarkable numbers...... 12X6 GWS? Which timing mode of the Phoenix?
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Old Oct 19, 2002, 11:58 PM
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San Fernando Valley
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Bernard,
My Mistake!!!
I'm just now recalling our chat about the MiniAC, and I think the 4800RPM number was with a 10x4.7 prop. So, for the moment please disregard my prior post until I can retest (or find the numbers I wrote down during the test).
--Mark
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Old Oct 20, 2002, 09:46 AM
Moderated. Severely.
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Sonoma County, California
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Hey BEC (anyone)

What is the difference in perfomance between the Thin-E props, and the slowfly props? I have been running the E props on my Mega, and now have a Hacker (yet to be used) and was wondering.. I have ordered props in both slowfly and thin-E, so I'll get to try them both. I was just wondering what peoples opinions were...?

Darren
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Old Oct 20, 2002, 11:10 AM
Space Coast USA
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Space Coast
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The JETI is the new gold label.

I'll have to check the amps.

Flew it today for the first time. Flew till plane got slow. Battery and motor were just lukewarm. I'm impressed with the 1215/16.

hoppy
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Old Oct 20, 2002, 01:56 PM
BEC
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Quote:
Originally posted by TheAddler
Hey BEC (anyone)

What is the difference in perfomance between the Thin-E props, and the slowfly props? I have been running the E props on my Mega, and now have a Hacker (yet to be used) and was wondering.. I have ordered props in both slowfly and thin-E, so I'll get to try them both. I was just wondering what peoples opinions were...?

Darren
The Slowfly props have a broader and even thinner blade (and smaller hub) than the thin-E props and are intended for low RPM use. The thin-Es are more appropriate for higher power applications and higher prop speeds as you'd see in a direct drive application.

The only airplane I've flown both types and the same size on was probably best suited to the slowfly type and not very highly powered and I saw little difference in performance. I've not tried the SB - but I do have a 10X7 thin-E so perhaps that's another experiment I need to run. Perhaps even some back-to-back static numbers would be somewhat informational.
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Old Oct 22, 2002, 12:17 AM
BEC
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Well, goaded by Hoppy's "post your miniAC numbers" up in Open Discussion, I just did some back-to-back testing of the 10X7SF and 10X7 thin-E prop and got a real surprise. Details in that thread....
http://www.rcgroups.com/forums/showt...threadid=67699

I will be test flying the 10X7 thin E as soon as I can! If it works as well as the static tests suggest I'm afraid I'll be bending GWS gearbox shafts more frequently, though.

I also found while swapping stuff around tonight that getting the direct drive Mega 1615/7 in the nose is going to require me to cut some notches in the cowl. The opening as designed is barely wide enough for the motor without the GWS S400 mount...... *sigh*.
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Old Oct 22, 2002, 02:07 PM
(aka Cliff Lawson)
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United Kingdom, Essex
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Quote:
Originally posted by BEC
I also found while swapping stuff around tonight that getting the direct drive Mega 1615/7 in the nose is going to require me to cut some notches in the cowl.
Umm, know what you mean - I just sanded a "recess" into each side of the cowl to get the motor to fit.

I'm glad there's finally going to be someone who can do a comparative review to compare the Mega and the MM MiniAC motors in a Switchback as I'm real keen to know whether it might be worth also getting a MiniAC motor in addition to the 16/15/6 I've already got (shame it's the /7 and not the /6 you'll be comparing!)

Cliff
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