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Old Oct 05, 2006, 01:54 PM
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Glow conversion to electric

I would like to convert a Goldberg Tiger 2 to electric. Any recomendation based on experience as to an electric motor with equivalent power of a 40 /46 size glow engine. tanz
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Old Oct 05, 2006, 02:56 PM
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Dr Kiwi's Avatar
Chattanooga, Tennessee, United States
Joined May 2003
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Quote:
Originally Posted by Henry Tanzer
I would like to convert a Goldberg Tiger 2 to electric. Any recomendation based on experience as to an electric motor with equivalent power of a 40 /46 size glow engine. tanz
I don't know how good they are but check out E-flite, since they sell outrunners which are labelled as glow equivalents (15, 25, 46, 60 etc).

Hobby Lobby suggests Axi equivalents to glow as well - but I must say they use a pretty wimpy .40 for comparison in their ads! My MVVS .15 is rated at 0.7 bhp (~510W) and they allow a 0.40 only 300W (versus 423W for their Axi)!
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Last edited by Dr Kiwi; Oct 05, 2006 at 03:07 PM.
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Old Oct 05, 2006, 04:11 PM
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Fort Worth, TX
Joined Nov 2003
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This should work well and save you some cash.

http://2dogrc.com/ecommerce/os/catal...oducts_id=2059

I have this setup, but ran it in a 5lb 3D plane.

Tim
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Old Oct 05, 2006, 04:13 PM
<- Balsa flies better ->
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Gustafs, Sweden
Joined Feb 2006
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Quote:
Originally Posted by Henry Tanzer
I would like to convert a Goldberg Tiger 2 to electric. Any recomendation based on experience as to an electric motor with equivalent power of a 40 /46 size glow engine. tanz
Henry,

Post and search in "Glow to Electric Conversions" thread, I know I've seen posts on your plane there.

Cheers,

Peter
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Old Oct 05, 2006, 05:29 PM
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East Anglia, UK
Joined Sep 2002
29,703 Posts
AXI 4130 is about right.

IIRC on a 14" prop. Its got as much thrust and pitch speed as a sport 40 on a 10x6.

But at 2/3rds the power due to lower RPM.

http://www.modelmotors.cz/index.php?...e=16&line=GOLD
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Old Oct 05, 2006, 10:07 PM
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ElectroBill's Avatar
A land Far, Far away
Joined Aug 2002
207 Posts
HENRY,
I'm using an E-Flight 45. Pulls it around very well. The ESC is CC 60. Prop= 13x8E
4C 4000 Kokam(15c) lipo. Ubec for the servos (4)
I really like this set-up.
Bill
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Old Oct 06, 2006, 07:43 AM
Arc, spark and smoke...
desmobob's Avatar
upstate NY; Lake George region
Joined Mar 2006
615 Posts
Quote:
Originally Posted by Henry Tanzer
I would like to convert a Goldberg Tiger 2 to electric. Any recomendation based on experience as to an electric motor with equivalent power of a 40 /46 size glow engine. tanz

Hank,

There is a "Glow to Electric Conversions" forum on this site. Ask the moderator to move your post there.

Good flying,
desmobob
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Old Oct 06, 2006, 08:55 AM
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Joined Aug 2003
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Quote:
Originally Posted by 3d_Crazy
This should work well and save you some cash.

http://2dogrc.com/ecommerce/os/catal...oducts_id=2059

I have this setup, but ran it in a 5lb 3D plane.
Tim, did you ever post on the specifics of the combo? I've been looking at that dualsky .50 replacement but I can't seem to find any posts about how well it worked. 2dogs has priced that combo very well if you were considering powering a plane with a good 4 stroke engine, so I see it as a viable alternative. Just curious about amp draw, speed, grunt, that sort of stuff. If you can point me to more information I'd be delighted to read up on it. Thanks! N_G
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