Heli Sizing - Electric, IC etc

[Duneflyer]

Can anyone explain heli szing to me please, especially in way of electric heli's? I have found quite a number of resources lately, but not all areas of RC heli's are always covered, I think.

Is there is a single resource which explains both electric, IC and turbine powered heli's?

On a similar note, I also want to buy a carry case / bag or tow, but am not sure what size to go for.

Thanks
Duneflyer

[xygax]

not an easy one that.... however from the smallest....upwards

1. Pico Z 200mm Disc
2. Trex 250
3. Twister 3D
4. Blade 400
5. Trex 500
6. Outrage 550 (i think)
7. Raptor 30
8. Raptor 50 / Trex 600 / Eleq / many other 50's
9. Trex 600 Nitro and electric
10. Raptor 60
11. Trex 700 / Raptor 90
12. Bergen Observer (810's) 1.9M disc

[Duneflyer]

So, does it go according to disc size and/or engine size?

[cap232]

nomally it would go by motor or engine size but lately with t-rex for example blade diamiter is being use

for example
t-rex 700 = 90 size heli with diamiter of 700mm hence 700 being a part of the name

[cap232]

normally it would go by motor or engine size but a few heli are using the blade diamiter size in the name

for example:

t-rex 700 = 90size heli with 700mm blades

[xygax]

Yes. The blade length is the 600 for instance this is also a 50 size .

Steve