TRex 450 SE nV2 to 500E Makeover ...

[Felt]

Sorry Thats right 430 xl , longest flight so far 6 min. with forward flight less in strait hover
Also Im using 11t not 12


Even with a 11T you must be running an insane headspeed with a 4 cell. I would have thought you would have to come down to a 3000KV motor to run it at 80 to 90% for max efficiency.

[handyman4hire98]

Not really I dont what the exact speed is,I just make adjustments till it runs the way I want. I'll say this it has plenty of punch,even with it dialed down.

[handyman4hire98]

An added note in regards to head speed at max efficency, I'm not running at 100 %, I can fly around wit out really going above 3/4 stick. You'll have to excuse the lack of heli smarts, I'm really into airplanes so my simple logic is to add more power and have some on reserve.

[Mikee]

I have read right through this thread and the question I have is, the heliartist 500e fusealage has two star shaped spacers in the pack the space the boom correctly in the tail of the fusealage... where as the the align 500e fusealage has nothing.. what supports the boom on the align one... I ended up putting a foam wadding around it to stop the sideways movement. It's not perfect but it works.. any other idea's would be appreciated as there must be othes soloutions to this. And did align just forget this spacer or is mine missing ????


Mikee (uk)

[Heliacious]

Is the Align 300e a fiberglass fuselage like the 500d by heliartist?

[Mikee]

Is the Align 300e a fiberglass fuselage like the 500d by heliartist?


If you mean 500e.... then yes looks just like the front canopy is different.. and no glueing if the front screen as it comes as one already bonded in... bonus as my glueing skills suck and already tinted

I got my one on Ebay

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=130247581532&ssPageName=STRK:MEWA:IT&ih=003

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=300252083822&ssPageName=STRK:MEWA:IT&ih=020

[Felt]

I was wondering if anyone had any luck with those flat bottom blades?

Thanks

[lohchief]

I was wondering if anyone had any luck with those flat bottom blades?

Thanks

I have 3 sets,one set for my soon to be scale OH-58a,and the other two sets for my OH-6a (4 blade rh),BUT........my servos haven't come in yet :arggg: so I haven't had a chance to try them yet grrrrr.One way or the other,I'll post my impressions on them as soon as I fly them :roll:
-lohchief

[nathanreed]

I got mine from Ebay and arrived fine in South Africa. I was more concerned about damage. Mine arrived 50 days after I paid the guy. He blamed the festive season but I have proof he shipped it nine days before I got it. Just don't buy from a guy called "rcmachine".


Really ! wow, I just bought my second Trex from rcmachine. Ordered it 9:15am friday morning. Had it 12 noon Monday morning!!!! couldn't beleive it - from Hong Kong ! crazy stuff. (came via DHL) Perhaps he has changed his ways.

[Heliacious]

Really ! wow, I just bought my second Trex from rcmachine. Ordered it 9:15am friday morning. Had it 12 noon Monday morning!!!! couldn't beleive it - from Hong Kong ! crazy stuff. (came via DHL) Perhaps he has changed his ways.


I also ordered my 500d from rcmachine off ebay, and it took 4 days to get to me from Hong Kong. :YeaBaby::thumbup: I opted for the express shipping though which was $10 more. He replied to all my emails very quickly too.

[Heliacious]

I was wondering if anyone had any luck with those flat bottom blades?

Thanks


I flew my first set this last weekend. But I cant really give my full opinion on them because Im not sure if my set up is correct. Im still a newbie at this stuff, and for some reason I can only get 8* of positve and negative pitch with my head. I also dont know what it was before that because I just bought my pitch gauge between my last crash and now and before now I had 325 pro woodies on it.

But with all that being said, the blades were perfectly balanced and tracked very very well without needing any adjustment. They are very flexible in comparison to the 325 woodies and more flexible than the 325 Fiber's as well (which were terrible blades and never tracked right and ended up getting pitched into the trash).

Im not sure if I just noticed it or not, but my heli hovers with a significant lean to right. So I cant say for sure if its pitching more to the right now due to the flat bottoms or not but I believe it is. Once again, I am not sure if my "new" set-up since the rebuild has anything to do with this or not.

But known good things are: even with only 8* of pitch available it will hover in idle up mode ( 95-100-95 Throttle Curve, 0-25-50-75-100 pitch curve if I remeber correctly) at about 1/3 of the way into the positive pitch above center in the left stick. So I do believe they lift off sooner and hover at a lower amount of pitch input. :thumbup: They also fly very smoothly and make a different sound than the 325 woodies. Spin up is very smooth too with no vibration that I noticed.

So all in all I think they are excellent blades and worth the money. :cheers

:thumbup:


I bought three sets, which is a bit of overkill, I will send you a set to try out if you want, all I ask is if you damage them you reimburse me for the expense, and if you like them and want to keep them, you can also just send me what I paid for them and keep them. Just let me know if thats something you would want to do.

[BlackTitanium]

But known good things are: even with only 8* of pitch available it will hover in idle up mode ( 95-100-95 Throttle Curve, 0-25-50-75-100 pitch curve if I remeber correctly)

Please take the time to review Finless Bob's Trex 450 build videos.
Your throttle curve is backwards, should be 100-95-100.
With your settings, you're at full throttle at mid stick and slowing down your head speed when you give more positive/negative pitch.

The correct set up is to be at 95% throttle at mid stick, and as you move your stick to more positive/negative pitch, your head speed should increase to 100% throttle.

Understand that when you apply blade pitch, the resistance of the angled rotor blades slows down the head speed. That point for using a throttle curve, is maintain a constant head speed, by increasing the throttle from 95% to 100% as you increase the blade pitch.

The other way to maintain a constant head speed is to set your ESC up in governor mode. You would then apply a flat throttle curve, i.e., 95-95-95, and the ESC would electronically increase the throttle to maintain the head speed.

[Heliacious]

Please take the time to review Finless Bob's Trex 450 build videos.
Your throttle curve is backwards, should be 100-95-100.
With your settings, you're at full throttle at mid stick and slowing down your head speed when you give more positive/negative pitch.

The correct set up is to be at 95% throttle at mid stick, and as you move your stick to more positive/negative pitch, your head speed should increase to 100% throttle.

Understand that when you apply blade pitch, the resistance of the angled rotor blades slows down the head speed. That point for using a throttle curve, is maintain a constant head speed, by increasing the throttle from 95% to 100% as you increase the blade pitch.

The other way to maintain a constant head speed is to set your ESC up in governor mode. You would then apply a flat throttle curve, i.e., 95-95-95, and the ESC would electronically increase the throttle to maintain the head speed.

Sorry I wrote that backwards. Its actually 95-100-95, I set it up and the whole head by watching the Finless Videos.

[Heliacious]

Any idea why I can only get 8* of pitch in both directions? I increased my Swash mixes up to very high percentiles and still can't get above 8*, and according to the manual, my servo arms are correct length as well as all lengths in the head.

[BlackTitanium]

Any idea why I can only get 8* of pitch in both directions? I increased my Swash mixes up to very high percentiles and still can't get above 8*, and according to the manual, my servo arms are correct length as well as all lengths in the head.

Did you do the cyclic interactions adjustment, per Finless, the first time you set up the head?
After the crash, did you reset the aileron and elevator travel adjust back 100%?
Reset the swash to 60%?
Reset the pitch curves to linear?

[Heliacious]

I basically followed Finless CCPM videos to a T, set the Swash to 60% which now is around 80%, and end travels are set at 100%, and sub trims are set to dead level.

Im using cheapo S75 servos, could that in itself be the problem?

[Felt]

I appreciate the offer, I just wish they were 335s. I want to go with the extra lift. I'll keep your offer in mind though. Thanks!

[BlackTitanium]

I basically followed Finless CCPM videos to a T, set the Swash to 60% which now is around 80%, and end travels are set at 100%, and sub trims are set to dead level.

Im using cheapo S75 servos, could that in itself be the problem?


Check the travel of your servos.
Inspect the servos for stripped gears.
Inspect your blade grip ball links, look for any bends.
Inspect your spindle shaft for bends.

[Mikee]

I have enjoyed this thread so much that I thought I would help it along with some imput... I did put all the windows in the heli, but it was quite apparent that the esc or motor would overheat.. my soloution was a fine mesh... painted in a satin black glued in place on inside of heli over the window apertures... and where the servo runs close to the fuse on the right hand side, i created a opening and meshed that to with a slight bulge outwards... The mesh looks like balcked out windows when flying and still remains cool... as you can see
http://i152.photobucket.com/albums/s184/Baja_album/PICT0018-1.jpg
http://i152.photobucket.com/albums/s184/Baja_album/PICT0020.jpg
http://i152.photobucket.com/albums/s184/Baja_album/PICT0022.jpg

[PilotSmith]

That looks hot! Or maybe better said, looks cool!

[lohchief]

As I bought the unpainted fuse,it seems it doesn't come with any other windows then the greenhouse over the rear doors.I already have the screen to do exactly what you have done,and you did that very well too,looking good.
Since I am building mine as a OH-6a,I have much to do yet.I just filled in the panel lines they have on the doghouse since mine didn't have any.I also have to order up some streamlined tubing to redo the skid strutts to the 6 configuration.I am still waiting on my silver pinstripping tape for the chin bubble antennas.After that I still have one more antenna to figure out.Still aways from done,but I sure am enjoying the whole thing.
-lohchief

[divindave]

Thanks to all who posted on this thread an all the good information that is in here. Ijust ordered my 500E off ebay from sylvian1975 and got it in less than 5days from hong kong.

Can't wait to start the build. Will post pics when finished. Got the Yellow and Blue version.

Dave...

Thanks Bill for the PDF of the instructions. It did not come with any. But, with this thread you really don't need any.

[Mikee]

Thanks to all who posted on this thread an all the good information that is in here. Ijust ordered my 500E off ebay from sylvian1975 and got it in less than 5days from hong kong.

Can't wait to start the build. Will post pics when finished. Got the Yellow and Blue version.

Dave...

Thanks Bill for the PDF of the instructions. It did not come with any. But, with this thread you really don't need any.


Well done Dave.. your gonna love the journey.. just when you think it's perfect.. your take it apart again and tweak it here and there.... Best advise read every thread and every post before you do anything... coz your going to miss something for sure.. and there's no rush... perfection takes a minute longer.. but the rewards are 10 fold

Mikee

[SimonV6]

does anyone know the colour codes for the blue and red, need a touch after a crash and there are so many different shades of red and blue :(


Simon

[lohchief]

dioes anyone know the colour codes for the blue and red, need a touch after a crash and there are so many different shades of red and blue :(


Simon

Sorry to hear about the crash man.I don't know about getting the paint codes,if they are even listed.However,most of your automotive paint suppliers should have a computer colour matching gizmo that could scan in the colors you need,then make ya a couple of gallons for touch up :thumbup:
-lohchief