HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Mar 26, 2007, 03:20 PM
WAA-08 Pilot Eventually
donjiskra's Avatar
Darien,IL,USA
Joined Jul 2000
1,570 Posts
Discussion
KMP "Challenger II 80"

Anyone familiar with this beautiful model?

http://www.kmp.ca/product_info.php?c...89820c6bad1796

They say it can be E-powered:
"Designed for gas, (40-52 two cycle), This model makes it an excellent candidate for electric power.The reason for this is it's very light airframe weight (7 to 8.5 lbs), and the need to put 'pilot weight' (lead or batteries) forward to simulate the real weight and balance."

Perhaps someone has done it???

Thanks for your reply,
Don
donjiskra is offline Find More Posts by donjiskra
Last edited by donjiskra; Mar 26, 2007 at 03:29 PM. Reason: add photos
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 26, 2007, 07:10 PM
E-flyer since 1981
Michael in Toronto's Avatar
Joined Oct 2000
1,494 Posts
There is an owner of a local hobby shop (Ron) who is building one with an E-Flite 46 brushless motor. He says it will balance well with batteries in the nose, but he has to drill out the lead weight that comes in the nose.

He doesn't use this website, so I guess you can call him, if you want.

Pinnacle Hobby
5970 16th Avenue
Markham, Ontario, Canada L3P 7R1
(905) 471-9634
Michael in Toronto is offline Find More Posts by Michael in Toronto
Reply With Quote
Old Mar 27, 2007, 05:07 PM
Registered User
TN
Joined May 2000
1,136 Posts
Don

We recently did an E-conversion for this plane at Hobby Lobby, below is our setup. We will have video of this up shortly, but this system works beautifully and will fly the plane very well for over 10 minutes. One of the keys to this working so well is the Aeronaut 3 bladed prop. It is a folding prop but we locked down the blades. The 1" prop that we are running is just about a large as this plane can use.

1 PM282612 AXI 2826/12
1 PM282002 Radial Mount
1 SPIN44 44A Jeti SPIN
4 HTS322 HS-322 Servos
1 RCD120 Electron 6
1 RCDXT_ _ Crystal
2 HT0604 12" HD Servo ext.
1 HLAN5525 40mm 3-blade spinner
1 HLAN4232 3-Blade Middlepart
2 HLAN3428 10x6 Prop Blades
1 DEA1300 Deans Ultra
1 FMAC03S Series Connector
2 PQ50002 2 Cell Lipo Packs
1 GR3389 2.5mm wire
1 AMM111 SPACER SET

Have fun,

Mike Hines
Hiflyer is offline Find More Posts by Hiflyer
Reply With Quote
Old Mar 28, 2007, 07:18 AM
WAA-08 Pilot Eventually
donjiskra's Avatar
Darien,IL,USA
Joined Jul 2000
1,570 Posts
Hey Mike, that's good news!
Appreciate your very helpful informative reply.
Look forward to the video and availability to your product line.
Don
donjiskra is offline Find More Posts by donjiskra
Reply With Quote
Old Mar 28, 2007, 05:51 PM
Registered User
TN
Joined May 2000
1,136 Posts
I just posted a video of the Challenger II

http://www.rcgroups.com/forums/showt...14#post7175826

check it out.

Mike Hines
Hiflyer is offline Find More Posts by Hiflyer
Reply With Quote
Old Apr 03, 2007, 09:56 PM
RETIRED PHILLY FIREFIGHTER
Vagabond324's Avatar
Philadelphia, PA USA
Joined May 2004
298 Posts
sweet flyer

Quote:
Originally Posted by Hiflyer
I just posted a video of the Challenger II

http://www.rcgroups.com/forums/showt...14#post7175826

check it out.

Mike Hines
Hi Mike, that's one sweet flyer. Do you think it needs 2 2s1p 5000 Lipo's? I have a 4s1p 4000 mah Lipo that I was thinking of using for this setup. Thanks, The Vagabond , Jon
Vagabond324 is offline Find More Posts by Vagabond324
Reply With Quote
Old Apr 04, 2007, 09:47 AM
Registered User
TN
Joined May 2000
1,136 Posts
Vagabond324

You could easily use the pack that you have. We balanced the plane with the packs back in the fuselage quite a bit, so balance should not be a problem. Flight times should also be acceptably long with your packs.

Good luck

Mike Hines
Hiflyer is offline Find More Posts by Hiflyer
Reply With Quote
Old Jul 20, 2007, 12:54 PM
SlowStick Test Pilot
patrickegan's Avatar
Yumastan RCAPA.NET
Joined Feb 2003
5,888 Posts
Mike,

I have few questions if thatís okay? (Electric version) What the AUW and normal flying duration(s)?

Thanks, Patrick
patrickegan is offline Find More Posts by patrickegan
Reply With Quote
Old Jul 22, 2007, 11:19 AM
Registered User
TN
Joined May 2000
1,136 Posts
Patrick

The ready to fly weigh of ours came out at 8-1/4 pounds. At that weight the model is a joy to fly and performs very well. One of the keys to the good performance with this electric setup is the Aero-Naut three bladed folding prop. We screwed the blades tight so they do not fold. The Aero-Naut blades are very efficient and the 3 blades are necessary to absorb the power and turn it into thrust. Since you do not have the option of going to a larger diameter, due to interference with the tail boom, more blades at the largest diameter that you can use is the option of choice.

While there are fixed 3-bladed props available, most are designed for glow power and are not all that efficient in electric motor use, the Aero-Naut works very well.

Hope this helps,

Mike Hines
Hiflyer is offline Find More Posts by Hiflyer
Reply With Quote
Old Jul 22, 2007, 11:29 AM
SlowStick Test Pilot
patrickegan's Avatar
Yumastan RCAPA.NET
Joined Feb 2003
5,888 Posts
Thanks Mike, but was 10 min all you got out of the 2 batteries (Normal flying)?
patrickegan is offline Find More Posts by patrickegan
Reply With Quote
Old Jul 30, 2007, 06:25 AM
The simplest, the better!
pdemon's Avatar
Italy, Europe
Joined Apr 2002
1,056 Posts
Hi
I've just bought this model and I'm starting to built it. A disappointig thing (thinking about an electric conversion) is all that lead, almost 20 ounces, that has been glued in the nose with epoxy and microballoons. It's nightmare to remove it. I ended cutting the nose just half an inch from the front gear former. I'll remove the lead and then reinstall the nose, using it as an access hatch for lipos or telemetry equipment.
Another upgrade is changing the tiny wheels with some "tundra" ones: I already have installed main gear 3 3/16" balloon air type wheels. For an aerial photography workhorse, I think this plane is a good starting point.
Pierluigi
pdemon is offline Find More Posts by pdemon
Reply With Quote
Old Jul 30, 2007, 09:11 AM
SlowStick Test Pilot
patrickegan's Avatar
Yumastan RCAPA.NET
Joined Feb 2003
5,888 Posts
We're on the same page. Did you order the one from Hobby-lobby or KMP?
patrickegan is offline Find More Posts by patrickegan
Reply With Quote
Old Jul 30, 2007, 01:58 PM
The simplest, the better!
pdemon's Avatar
Italy, Europe
Joined Apr 2002
1,056 Posts
I ordered it in Europe from Lindinger.at.
Buying it from the States was too expensive.
Here are a couple of pics of the first mods
Pierluigi
pdemon is offline Find More Posts by pdemon
Reply With Quote
Old Jul 30, 2007, 07:13 PM
SlowStick Test Pilot
patrickegan's Avatar
Yumastan RCAPA.NET
Joined Feb 2003
5,888 Posts
nice
patrickegan is offline Find More Posts by patrickegan
Reply With Quote
Old Jul 30, 2007, 08:39 PM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
2,442 Posts
Good looking bird.

Does the one from HL have the lead in the nose?

Thanks,

DD
diver don is offline Find More Posts by diver don
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Video KMP 80" Challenger II with AXI power Hiflyer Electric Plane Talk 4 Sep 13, 2007 08:36 PM
Cool E-foamies Moulded Depron Challenger II Mini Biplane! 3d_Crazy 3D Flying 172 May 17, 2005 11:20 AM
E-Foamies Challenger II Mini for CDROM Power! 3d_Crazy 3D Flying 234 Oct 27, 2004 01:54 PM
FoamyFactory Pitts Challenger II Build Thread. Boss248 3D Flying 44 Aug 29, 2004 05:59 PM
Sean D. Tucker Challenger II Speedfreak 3D Flying 21 Aug 20, 2004 07:23 PM