RE: Great Planes Super Sportster EP with Modified Power System  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       



All Forums >> Electric Aircraft Universe >> Electric Aerobatic & Sport Planes >> RE: Great Planes Super Sportster EP with Modified Power System Page: <<   < prev  1 2 3 4 5 6 7 8 [9] 10   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: Great Planes Super Sportster EP with Modifie... - 12/27/2007 5:16:28 AM   
mike early



Posts: 303
Joined: 10/28/2007
From: Ashland, KY, USA
Status: offline 		Interesting thread!

Can this airframe be purchased bare? Or does one have to buy the brushed power system and chuck it?

(in reply to guapoman2000)
       Post #: 201

RE: Great Planes Super Sportster EP with Modifie... - 12/27/2007 5:49:42 AM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		It comes with the motor.

You could elect to use the included motor if you want or transfer it to say a sailplane.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to mike early)
       Post #: 202

RE: Great Planes Super Sportster EP with Modifie... - 12/29/2007 6:09:55 AM   
Charley


 

Posts: 1099
Joined: 12/5/2001
From: Kerrville, TX, USA
Status: offline
quote:

ORIGINAL: mike early

Interesting thread!

Can this airframe be purchased bare? Or does one have to buy the brushed power system and chuck it?


I know what you're thinking. Me too. I hate to buy one, knowing that I'm going to trash the motor/esc/batttery. I sure wish GP would sell it sans power system. It's a sweet airplane.

CR

_____________________________

Charley
ccrobins@ktc.com

(in reply to mike early)
       Post #: 203

RE: Great Planes Super Sportster EP with Modifie... - 12/29/2007 9:05:22 AM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		Even chucking the motor, it's still a good buy. But yeah if they could take away the cost of the motor and ESC, it would be a fanastic electric ARF.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to Charley)
       Post #: 204

RE: Great Planes Super Sportster EP with Modifie... - 12/29/2007 5:07:24 PM   
Charley


 

Posts: 1099
Joined: 12/5/2001
From: Kerrville, TX, USA
Status: offline
quote:

ORIGINAL: opjose

Even chucking the motor, it's still a good buy. But yeah if they could take away the cost of the motor and ESC, it would be a fanastic electric ARF.


No doubt about it. It's a great flying model with enough power and a light weight battery. I just hate to throw out a perfectly good motor and battery. However, if GP ever said they were discontinuing it I'd buy another in a flash. We do have a guy in the club who has a pretty small budget for his RC hobby, so he scratch builds his planes and looks around for inexpensive power setups. I can always give the stuff to him.

CR




_____________________________

Charley
ccrobins@ktc.com

(in reply to opjose)
       Post #: 205

RE: Great Planes Super Sportster EP with Modifie... - 12/29/2007 10:36:21 PM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		I posted another thread on how I'm getting about 30 minutes flight time on my SS EP with a .30 equivalent brushless motor.

By sacrificing a bit of time for more power ( about 22 minutes on my timer ) the EP has become a wonderful light aerobatic plane.

I have well over 150 flights on mine now, and it is definitely in my "if it crashes it shall be replaced" list of planes which for me is high praise.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to Charley)
       Post #: 206

RE: Great Planes Super Sportster EP with Modifi... - 1/1/2008 11:01:11 PM   
brenthampton79



Posts: 155
Joined: 7/26/2006
From: Portageville, MO, USA
Status: offline 		I have one of these with the stock system but with an 8 cell nimh pack with a tekin rc car speed control for reverse!!! its a blast to play with i'm going to put a new mod motor on it or put a brushless car setup so i keep my reverse, its fun because its like our spray plane to reverse the thing after touch down.

_____________________________

N73070 AT-502B Work
N87DC Acrosport II Fun

(in reply to opjose)
       Post #: 207

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 1:53:22 AM   
arcticflyer


 

Posts: 114
Joined: 11/17/2005
From: Tuktoyaktuk, NT, CANADA
Status: offline 		I have finally decided to trash both the stock power system and the 600 system for my planes ( I now have two). I am going to power one with a .25 nitro and the second with the
BP Hobbies 2915-5D brushless. I will have no problem with the nitro conversion because I am very familiar with running nitro engines. Of course the firewall will be strengthened for the nitro conversion
My question is about the brushless conversion. Hopefully OPJOSE is still looking at this thread!? I plan on using a 60A ESC and (2) 11.1V 2100 Lipos hooked together which I hope will give me the 20 to 30 minute run times that others have gotten. My biggest complaint with the stock systems are the sub 10 minute run times. I am looking at purchasing (4) of the Zippy 21C 11.1V lipos. Has anyone had experience with these batteries? The price sure is right!
Does anyone have photos of either of the conversions I plan to do? Especially the motor mounting.
I can't wait to fly both of the planes on the same day which will be a great way to compare their performance. I am going to try and set them up as close as possible. Yeah it sounds crazy! but should be fun! Skip

(in reply to brenthampton79)
       Post #: 208

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 2:10:22 AM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline
quote:

ORIGINAL: arcticflyer

My question is about the brushless conversion. Hopefully OPJOSE is still looking at this thread!? I plan on using a 60A ESC and (2) 11.1V 2100 Lipos hooked together which I hope will give me the 20 to 30 minute run times that others have gotten. My biggest complaint with the stock systems are the sub 10 minute run times. I am looking at purchasing (4) of the Zippy 21C 11.1V lipos. Has anyone had experience with these batteries? The price sure is right!


Yup no problems.

Since you are running them together even a 15C battery suffices, and the 21C gives you that much more of a safety margin.

I've also run 3800 3S batteries in the plane and have had no problems with the run time.

I've also sacrificed run time for a bit more performance using a 10x7E prop, but reducing run time to about 18-20+ minutes.

You can go either way simply by swapping the prop, which I find a nice feature of all of this.


My SS EP is still running strong, and I've worn out and replace the wheel pants with so many touch and go's.



< Message edited by opjose -- 1/19/2008 2:18:52 AM >

_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to arcticflyer)
       Post #: 209

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 4:26:38 AM   
Charley


 

Posts: 1099
Joined: 12/5/2001
From: Kerrville, TX, USA
Status: offline
Either one of those power systems sounds like overkill to me. Maybe that's what you're after. ??

CR

_____________________________

Charley
ccrobins@ktc.com

(in reply to arcticflyer)
       Post #: 210

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 6:23:20 AM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline
quote:

ORIGINAL: Charley


Either one of those power systems sounds like overkill to me. Maybe that's what you're after. ??

CR


Not at all.

The default power system is simply too anemic for this plane.

With either of the suggested configurations the plane comes alive, but it certainly doesn't overpower it too much.

Check the videos that Guapoman2000 posted and you'll see how well the plane flies with this configuration.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to Charley)
       Post #: 211

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 1:22:33 PM   
arcticflyer


 

Posts: 114
Joined: 11/17/2005
From: Tuktoyaktuk, NT, CANADA
Status: offline 		Charley, I'm not a 3D pilot and I'm not looking for over kill as the 600 system did a fairly good job. But the big 3600 Nimh packs weighed "tons" and still only gave sub ten minute run times. The low run times were my biggest problem however the stock system as Opjose said is very anemic. It will fly the plane but I feel the airframe's potential cannot be realized. I wondered if the .25 might be a bit large and suggestions on the nitro conversion would definately be considered. I get so few days to fly up here that on the good days I litterly fly all day off and on. I don't need unlimited verticle but it sure would be nice if I want to do it. I love the way this plane flies and look forward to exploring its limits.
Also Charley I found your pics of the brushless motor mount they will be a great help in mounting mine.

< Message edited by arcticflyer -- 1/19/2008 1:57:47 PM >

(in reply to opjose)
       Post #: 212

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 7:00:04 PM   
opjose



Posts: 6146
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		Arcticflyer

You may find that with this combo you'll forgo all desire to put in a nitro engine. ( Though I also like glow/gas engines ).

I've had electric guys at my field in awe of the SS EP's performance with this setup. They've stated that it seems like I'm flying it with a .40 engine, and it even sounds much like one to them ( prop noise ). A few people who had SS EP's out at the field came up to me, wrote down what I had in it, and a few weeks later showed up with exactly the same configuration.

I also like the flexibility with the batteries.

I can use my 3900mAh 3S LiPo packs or my 1800 to 2200 mAh 3S Lipos in a 3S2P configuration. For me this means that I can use the same batteries I normally use on other planes as well...



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to arcticflyer)
       Post #: 213

RE: Great Planes Super Sportster EP with Modifi... - 1/19/2008 7:49:16 PM   
arcticflyer


 

Posts: 114
Joined: 11/17/2005
From: Tuktoyaktuk, NT, CANADA
Status: offline 		I just got the motor from BP Hobbies today. It only took two days to arrive as I am down in the States visiting the kids. I fly back to the arctic next week and the work begins. I am definately going to do the brushless conversion first and as you say I might not want to go any further. I have an airframe that has been crashed a couple of times that will be the test bed and a brand new in the box SS to convert after testing. I was looking at some lipos on the nitroplanes site that are 3s1P 3800s 15C at a pretty reasonable cost. I thought about getting one of those and two of the Zippy 21C 2100's and hook them together. Like you said that will give some versatility with the battery use. I read this whole post again and watched guapoman's videos along with another video on UTube. If you watch his video with the brushless then watch another guys video with the stock system the difference is amazing. Weather sure is nice down here, not looking forward to 30 below again.
Oh yeah what ESC do you run. Skip

(in reply to opjose)
       Post #: 214