LOGO 5003D is a little ripper

[Mercuriell]

What's happened - maidened the L5003D last weekend - had around 15 flights (6mins +) and not even thought about spooling up the others in the stable. I feel I've progressed more in aerobatics in 1 week than the last 3 months - rainbows, Tic Tocs coming and nice tight rolls and flips. I think the smaller size and agility is very confidence inspiring - if the maneouvre falls apart - no worries pick her up and off she goes again - and getting this sort of performance from 6S is amazing - I can't see me flying the stock TREX600 again - think I may convert it to nitro!

Also think the Jazz 55-10-32 is going to work out - I fitted a heat sink and top temp today after 6 mins heavy flying 44°C - fitted a servo current logger too and not surprisingly current draw safely under 3A (mostly 1-1.5) - anyway posted the data in the FDR section but add in pic here.

Using Rotortech 515 blades at present and Shawn advises me that 550s give a big upgrade in performance so I'll give those a swing at the weekend - anyway a big :lol: here so just wanted to share my pleasure at this great little heli and maybe persuade the L600 fliers to give it a go - certainly much more compact to carry, fly and recharge - as for the T500 - not a chance :smokin:

http://www.helifreak.com/attachment.php?attachmentid=32707&d=1197534876

[OICU812]

Wait till you mount up some 550 mains, if you think you are impressed now I can not wait to hear you after the 550s are strapped on! :wink:

[Mathias]

Why RT550? Isn't the RT560 the best blades for the L500 longer?

[Team-MAYHEM]

Ya know, it really boils down to what you're looking for...

Longer Blades
Pros -
Greater stability
Better climb rate (better lift)

Cons -
Slower cyclic rate
Harder for the motor/ESC to hold the desired headspeed

Shorter Blades
Pros -
More agile cyclic rate
Quicker response to inputs
Headspeed will hold better

Cons -
Less lift/climb rate
Less stability

***Of course, 10mm isn't going to make much of a difference at all with blades this big...but jumping from 515's to 560's, these differences may be more noticable

[zguy]

Can someone (Shawn?) please clarify in detail the flight difference between the RT550 and RT560? :confused:
I'm currently running the RT550 and wish the roll/flip rate was better. Also using 440mm flybar and light paddles w/ max cyclic before binding.

The RT site does a poor job in explaining the difference between the blades. The 560's also seem to be sold out everywhere!

[BruceW]

I have the RT560 but will probably pick up a set of SAB 550 or RT550 and give those a try if the cyclic rate is too slow. From what I've found, the width on the RT560 is 53mm and the RT550 is 51mm (http://www.centuryheli.com/products/mtblades/index_rotor.html?currentid=191). Zguy, I picked up the Trex600 flybar also but haven't put it on yet. Maybe I'll add that before my first flight. Sounds like more headspeed is needed if roll/flip rate is too slow.

John - nice to see your enjoying that L500. Hopefully I'll get the rest of my parts by next week and be flying after that - its killing me.

[Eyon]

550mm blades are THE best for this size machine. My favorite were the SAB 550mm blades, part number 320. they are so quick, snappy, and make loads of blade bark. if i get my L500 going again, i will buy another set without a doubt.

Ian

[Mercuriell]

Seems like I'm gonna have to do a back to back comparison - preferably with video :) - nice summary Marshall of the pros and cons - my inclination is to go with snappier cyclic and more consistent HS of the shorter but we'll see !

[OICU812]

The 560RT are stiffer and the cg is abit different, I did find them to be abit faster on the cyclics as well oddly enough over the standard 550RT. I have been told however the 550s work better for the Vstabi on the 500 so I went that route. On my flybar I use the 560RTs', One thing is for certain is headspeed is a big factor on the Mikado flybar head, I found the sweetspot for me anyhow on the 500 is 2240-2280 for best response of everything in general, and flybarless is going to be around the 2200 mark tops needed. At any rate this was only to comment that the 550 and up are far better than running 500-515mm blades for Mercuriell, seems we ended up making this into a 550 vs 560 thing sorry, lol.

[zguy]

The 560RT are stiffer and the cg is abit different, I did find them to be abit faster on the cyclics as well oddly enough over the standard 550RT. I have been told however the 550s work better for the Vstabi on the 500 so I went that route. On my flybar I use the 560RTs', One thing is for certain is headspeed is a big factor on the Mikado flybar head, I found the sweetspot for me anyhow on the 500 is 2240-2280 for best response of everything in general, and flybarless is going to be around the 2200 mark tops needed. At any rate this was only to comment that the 550 and up are far better than running 500-515mm blades for Mercuriell, seems we ended up making this into a 550 vs 560 thing sorry, lol.

Great info:thumbup: Thanks Shawn!!

[ozace]

Great John, i am really looking forward to seeing how many more amps the bigger blades use. I have 530mm blades on mine and find things are managable (amp wise). I chose the size to try to give the battery and esc an easier time of things.

Razor blades at 530mm and zigsaws at 525mm seem to make a terrific compromise for me , they give a nice feel to the heli.

[uragano47812]

Today i fly again with my 500 v-stabi. I have tried a fast climb/lift up and all i can say i WHAOOO!!
I have never see a heli so fast!! Even my old Trex600 8s was so much slower...

I'm using 1910H and MS Carbon 550mm.

Very very good heli. Now i only need to fine tune the vstabi.

[Mercuriell]

Well tried the 550 vs 515 - the 550 give a feel very similar to the L600 - majestic power, lots of fan and pop noise, better climb and more stable but slower cyclic and more power consumption: 500mAh more for same duration: higher peak current (40A more !) - warmer ESC 8°C - and 110 rpm slower HS. Bumping up the power to a more realistic 85% gave better cyclic response and less current peaks and a cooler ESC - interesting and supports theory of running ESC at lower % generates more heat! Not sure if I'll keep the 550s on - I guess if the L500 was my only heli I'd stick with the 550s but I love the snappy rolls with the 515s and I have the big girls to play with if I want a power trip - :)

http://www.helifreak.com/attachment.php?attachmentid=32812&d=1197625847
http://www.helifreak.com/attachment.php?attachmentid=32813&d=1197625847
http://www.helifreak.com/attachment.php?attachmentid=32814&d=1197626447

[BruceW]

I wish there was a 525mm or 535mm blade with a 49/50mm width. That might be a nice blend between the power of the 550mm blade and the quick cyclic action of the 515mm.

[slinky]

guys please help here, iv'e noticed some of you are using 550/560mm blades on your logo 500's this means your overlaping the tail rotor disk by 30/40mm if your 3d'ing them then how come your not hitting the tail blades, just wondering