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HomeAircraftHelicopterAerial Photography and Video › A few ION progress pics.
05-08-2005 08:51 PM  13 years agoPost 1
lowandslow

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Spring Hill, TN

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Got a good couple of days in on the ION. It's going a little faster that I thought so that's a good thing. It's a fun build so far. Really nice chopper!



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05-09-2005 12:13 AM  13 years agoPost 2
tabbytabb

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seattle

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Looks good!


Take your time and remember the loctite!


Tabb

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05-09-2005 12:15 AM  13 years agoPost 3
ReadyHeli

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Jupiter, FL

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No foamies on the skids?

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05-09-2005 12:46 AM  13 years agoPost 4
lowandslow

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Spring Hill, TN

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Loctite, what's that?

No, I've been very careful about my assembly (hopefully). Don't want parts flying off every which way. I have the foam for the skids, just haven't put them on yet. I figure about another 15 hours it will be ready for a some test flights. Still have to order the blades, batteries, etc and some different gearing from MA. Before I buy my Lipos, I'm going to try a set of the new IB3800 round cells.

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05-09-2005 01:03 AM  13 years agoPost 5
GauchoVolador

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Looking good!
What hacker model is on the ION and what blade size are you planning to spin?
Cheers!

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05-09-2005 02:07 AM  13 years agoPost 6
cwd10

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PA, - U.S.A.

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You will like the IB3800's for sure, but remember they are going to reduce the weightlifting cabability as compared to LiPo's. I personally don't think it's enough to hurt the heli's ability to do AP, but there will be a difference.

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05-09-2005 02:26 AM  13 years agoPost 7
lowandslow

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Spring Hill, TN

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It's the C50 15XL I think that's the standard included model. I'm going to run SAB 710's. I was talking to Chris over at MA and he thought the IB3800's wound work great. They for sure will be heaver but Chris says the ION will haul it no problem. I'm waiting on a 60T lay-shaft gear from MA. That should bring down the RPM's to around 1600 depending on what batteries are in it. I'm still going to get a set of Lipos but for the first tests I'll run 3800's.

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05-09-2005 01:16 PM  13 years agoPost 8
ReadyHeli

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Jupiter, FL

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low:

i think with the lower head speed and the added weight you might be hurting both your flight times and your ability to maintain a steady hover at high altitudes...however i am interested in learning what the outcome finally is. my AUW is around 16lbs 2 oz. with the new TP prolites and we are hovering for a good 16-18 minutes. thats also with stock ION gearing. if chris said to get the 3800's well i respect his opinion, should be fine then. when has a vendor ever been wrong?

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05-09-2005 02:10 PM  13 years agoPost 9
GauchoVolador

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Tx

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Where can I get some specs and who sell the 3800s?
Thank you guys

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05-09-2005 02:13 PM  13 years agoPost 10
cwd10

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"Where can I get some specs and who sell the 3800s?"

Here

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05-09-2005 02:23 PM  13 years agoPost 11
bell-230

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sonoma, ca (currently milano italy)

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jg,

i have the headspeed at 1600 on my 14, and the rotordiameter is a good 8 inches less, it seems plenty stable to me! and the flight time is great.

ian brooke
k2shots.com

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05-09-2005 03:42 PM  13 years agoPost 12
tabbytabb

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seattle

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JG, if anything the lower headspeed will help the stability of the ship and aid in longer flight times.

And I doubt you are getting 16-18 minute flights on a stock Ion gearing running V blades with a 16Lb AUW.

I have tested a bunch of setups and this doenst fit in with any of my empircal testing

Tabb

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05-09-2005 05:41 PM  13 years agoPost 13
fitenfyr

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Port Orchard, Washington

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13-15 here..
With mine geared down to 25.4:1 (13T pinion, 55T layshaft, 90T main) I get about 13-15 minutes on the 8000's.

Ditto what Tabb said. Mine is geard to provide about 1650 at full climbout and 100% throttle. I have not tached it to see if it really is, but it feels about there.
I really enjoy that headspeed and with the flybar weights it is super stable, yet agile enough to get there and back quickly.
I too am going to give a set of those IB's a try.
I am looking for a second set of packs, but at the price of LiPo's these days those NiMh's are looking good.
If anything the added weight of the round cells will help me as at times I feel the ship is too light for the wind.

Looks good on the build just remember to take your time and pay VERY close attention to the tailbox.
It is the achilies heel of all MA helis IMO, but if you build it correctly it will give you great service.

Jason Stiffey
Fly Fast....Live Slow...

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05-09-2005 09:42 PM  13 years agoPost 14
GauchoVolador

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Tx

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Jason,
What motor/controller are you using and how long do you think the flights will be using the 3800s?? How many cells on the IBs? Volts and weight of the pack?
Im really a newbie on electrics, but im looking forward to adapt one of my helicams to electric, just looking for a cheaper source of power than lipos to make the first tests
Thank you!!

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05-09-2005 09:51 PM  13 years agoPost 15
lowandslow

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Spring Hill, TN

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Gaucho,

The IB3800's that I ordered are configured in two 16 cell packs. The specs for the cells are on BP's web site. It will be interesting to see how they perform. The cost was about $250 shipped for both packs.

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05-09-2005 10:03 PM  13 years agoPost 16
GauchoVolador

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Tx

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Low,
So you will be running the 15XL with 38,4V I have checked on Robotic Power Solutions site and every 16cell pack will weight about 2pounds, that will be 4 pounds for the 2 packs against 3 1/2 pounds on the 10s4p lipos configuration..there is not much weight difference...of course it is on capacity.
The figure of $250 is more appealing to me than the +-$800 with 10s4p lipos.
What charger will you be using and how long the charging will last with the IBs??

Interesting to see how it will perform, maybe it will encourage me to rush the investment on the motor/esc!!!

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05-10-2005 12:06 AM  13 years agoPost 17
lowandslow

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Spring Hill, TN

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I'm using a Triton and if you charge at 1C it will take an hour. However, you can hit these round cells at more than 1C so you can get your charge times down to 30-40 minutes. Rounds cell are safer as well. Lipos are still the way to go and I'll order a set anyway.

A local hobby shop here in San Diego can make me a set of 5S4P 8000mah packs at $225 each. He buys them directly from China and builds them in-house. I've been using his 3S1P 2000mah packs in my T-Rex for awhile and the work great! They actually perform a little better than my TP2100 packs and I'm paying $35 a pack as opposed to $80 for a TP pack.

Personally I think the cost of Lipos is a scam that most have bought into including me. Sure, they are great for duration, power, weight, etc and certainly made e-powered R/C a reality. That has value but at what cost? All these fancy dancy Lipo pushers are getting $800 for a set because we will pay it. I was paying $80 a pop for 2100 packs and now I'm paying $35 and he is still making money. I'll bet most of these lipos all come off the same line in China. I won't pay $800 a set just for a fancy name.

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05-10-2005 02:06 AM  13 years agoPost 18
fitenfyr

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Port Orchard, Washington

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Same
I was looking at the same 32 cell configuration.
I really just heard about these from Chris at Min Air yesterday.
I am running the stock Hacker 15XL and the 77-O controller.
One thing of concern to me is the initial peak voltage of a fresh off the charger NiMh may be more than the controller will like so longevity may be an issue for the controller if you run these often.
This was something that was brought up by Chris about 6 months ago when I was considering using the GP3300 cells.
I don't know if it will be a big issue, but something to watch.

I was probably going to get a Schulz charger for them. (kind of offsets the price difference though . ) that way I can charge all 32 cells at once (I think. ), but again I am still doing the research on this.

Tony I would be interested in that shop regarding those LiPo's. That is a good price for sure.
I'll bet most of these lipos all come off the same line in China.
Talking to Brian at Tanic on Saturday (yep he had me call him on a Saturday to talk packs.) he filled me in on why some of these less expensive packs have hit the market.
It appears that the Chinese have mined most of the "good" lithium out of their mines and now there are a few companies that have gone really deep and hit pockets of less than pure lithium. These are were the inexpensive cells are coming from. That is why they are heavier than some of the offerings from the big names. The lithium is tainted with other minerals.
Now does it really effect anything who knows, but I can tell you that lithium in its raw form is a pretty volitile mineral and doesn't play nice with other elements like water.
So if the cells contain lithium that is not as pure as can be I suppose there is a chance of a failure of the cells.
He told me that the Tanic cells are coming from Malaysia where the mines are still new and the raw lithium is purer.
I imagine that for the price the cells are worth it, but something to consider and it weighed heavily in my decision to NOT buy some very well priced packs yesterday is the AMP draw on the ION.
Chris figures with the configuration that I am running I should pull about 25A in a hover, but that it could peak to 60A plus in high pitch situations.
Can the cells you are buying handle that load?
The ones I was offered were only 4C so that would be about 32A peak.
Not picking on them, but that question could not be answered 100% by me last night so I opted to stay with proven high draw cells in Lithium. Time will tell and if some of these Chinese packs prove to hold out then I will certainly buy them, but I can't afford to chance the packs with my camera ship and the liability that goes with it. For now I am footing the bill out of my pocket if I have an accident so I am very cautious about the stuff that makes my ship fly.

Jason Stiffey
Fly Fast....Live Slow...

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05-10-2005 02:26 AM  13 years agoPost 19
lowandslow

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Spring Hill, TN

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Sounds a little far fetched to me. Sorry, I'm not buying it. These guys are making a fortune selling these cells to R/C folks. Some of these high $$ cell jockeys are having there share of problems with their pure Malaysia lithium too.

The cells I'm talking about are 10C. Like I said, I've been using them in my T-Rex and other planes and have been giving them a pretty good hammering. Had a 3D guy (much better than I) fly my Rex with one of these 3S packs in it. By the time he landed that little pack was smokin hot! I'm still flying that pack some 20 charges later. It still charges perfect and fly's great.

Are these cells better than the high $$ "brand names"? Who knows. Maybe, maybe not. But I can tell you this Titanic, TP and others are cleaning up. Lipos are not a new technology.

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05-10-2005 03:33 AM  13 years agoPost 20
GauchoVolador

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Very interesting debate has started!!!!
I hope someone experienced on "branded" lipos could test Low's "unbranded" packs and come up with results.
It will be a bunch of us that will stay tuned for sure!!

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HomeAircraftHelicopterAerial Photography and Video › A few ION progress pics.
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