What's the difference between 05 and speed 400
10-14-2002 | 03:38 PM
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From: KS
What's the difference between 05 and speed 400
***Sorry. Was confused with the difference between an Astro020 and a Speed 400****[img]i/expressions/face-icon-small-blush.gif[/img]
10-15-2002 | 05:29 AM
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What's the difference between 05 and speed 400
The 400 in Speed 400 is a specification of physical size, the 05 is a specification of approximate glow engine equivalent... and the two are really not far off.
400 systems are advertised for planes in the 1-1/2 pound weight range (although type of plane and type of flying have a big impact on how much power is needed) and the 500 - 550 sized motors that are supplied stock as "05s" in things like electric sailplanes are rated for about 2-1/2 pounds or maybe a little more.
The prices for motors in this range varies by the way they're wound, whether they have ball bearings, whether they have replaceable brushes and adjustable timing. For the basic "can" motors (no ball bearings, nothing fancy, replaceable, or adjustable) the price is in the $10 to $25 range for both of these sizes. For exotic motors, the price can get very high, but again, you only get benefits to outweigh an exotic price if you're working on an exotic application.
Lots of times, the article is written after the plans are locked in, so I suspect that the designers flew it on the 400 and then found that they liked it better on the geared 500... The plane is basically a 1/2A oldtimer for electric, so I'd expect a geared 400 to fly the plane, but a geared 500 - 550 to haul it aloft quite smartly with very little additional cost, unless you really want to spend more.
Personally, I'd contact the designer and see what he can tell you about the difference between the plans and article. I've done that before and gotten very good response... model plane designers don't get rich financially from this, so hearing from other guys they their design is liked and that their advice is valued can really make a designer's day. They'll very likely answer your questions if they possibly can.
400 systems are advertised for planes in the 1-1/2 pound weight range (although type of plane and type of flying have a big impact on how much power is needed) and the 500 - 550 sized motors that are supplied stock as "05s" in things like electric sailplanes are rated for about 2-1/2 pounds or maybe a little more.
The prices for motors in this range varies by the way they're wound, whether they have ball bearings, whether they have replaceable brushes and adjustable timing. For the basic "can" motors (no ball bearings, nothing fancy, replaceable, or adjustable) the price is in the $10 to $25 range for both of these sizes. For exotic motors, the price can get very high, but again, you only get benefits to outweigh an exotic price if you're working on an exotic application.
Lots of times, the article is written after the plans are locked in, so I suspect that the designers flew it on the 400 and then found that they liked it better on the geared 500... The plane is basically a 1/2A oldtimer for electric, so I'd expect a geared 400 to fly the plane, but a geared 500 - 550 to haul it aloft quite smartly with very little additional cost, unless you really want to spend more.
Personally, I'd contact the designer and see what he can tell you about the difference between the plans and article. I've done that before and gotten very good response... model plane designers don't get rich financially from this, so hearing from other guys they their design is liked and that their advice is valued can really make a designer's day. They'll very likely answer your questions if they possibly can.
10-15-2002 | 11:00 AM
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From: gone,
What's the difference between 05 and speed 400
since you can get .05 class electric motors for anywhere from $12 to $100... (more, and you are probably looking at a custom made, competition motor) and 400 class motors at essentially the same price range... Cost isn't the isue AT ALL.
The classification is simply the motor "can" (main outer sheel) size. There's dozens of different winding and magnet and bearing options within each motor class. The low end 05 and 400's won't be far off from each other in power. Going to a more expensive motor USUALLY means you are gaining efficiency, power and/or max rpm capability. (usually not all at once...)
The classification is simply the motor "can" (main outer sheel) size. There's dozens of different winding and magnet and bearing options within each motor class. The low end 05 and 400's won't be far off from each other in power. Going to a more expensive motor USUALLY means you are gaining efficiency, power and/or max rpm capability. (usually not all at once...)
10-23-2002 | 08:58 PM
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From: manahawkin,
NJ
What's the difference between 05 and speed 400
Please chech the hobby lobby site..request a catalog and look it over..they show the weights, power, usages of the various speed 400, speed 500 and speed 600 (05 can motor) with gearboxes, controlers, batteries, chargers etc.
The speed 400 class is much lighter,and less powerful, than the sp 600 class(05).. The sp 400 can be considered
about a .049 glow to about a .074 and the sp 600 about a .15 to .20 glow depending on direct drive or gearbox
and the number of cells. Some sp600 class motors can be used in .25 glow models..depends on the motor and set-up. E-power is very versitile and takes a while figuering it out.
Have fun,
Jarvis
The speed 400 class is much lighter,and less powerful, than the sp 600 class(05).. The sp 400 can be considered
about a .049 glow to about a .074 and the sp 600 about a .15 to .20 glow depending on direct drive or gearbox
and the number of cells. Some sp600 class motors can be used in .25 glow models..depends on the motor and set-up. E-power is very versitile and takes a while figuering it out.
Have fun,
Jarvis
