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T-REX 500 › Can you autorotate a trex 500 well?
09-07-2009 02:09 AM  8 years agoPost 21
Spitfire1

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Perth Australia

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You will have to do something with the T/curves if you intends to bail out, maybe make them low. I accidentily tried to bail out into my idle up mode thats 100% flat once or twice and it wasent pretty, you get 0 - 100% throttle instantly causeing the tail to whip around, not sure how you prevent this, I just dont try and bail out anymore.

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09-07-2009 02:56 AM  8 years agoPost 22
DWS6

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Newark,DE

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not sure what trans your using but in JR you can input a trottle delay so when you bail out it slowly ramps the throttle back up. The second part of that is to not wait until the last second to bail. There won't ne as much torque induced into the drive train. The tail whips because the tail rotor RPM is to low to be effective.

Dave Williams
Team Align

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09-07-2009 03:05 AM  8 years agoPost 23
Spitfire1

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Perth Australia

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I have dx7, I think from memory it wasent so much a bail out but I clicked back into idle up whilst the rotors were still spooling down on the ground to go up for another auto, and bang!! nearly ripped my main gear to shreads, and the heli bounced up a foot of the ground and spun around 180 degs, I made the same mistake about 2 minutes later.
It was with a 600e not the 500.

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09-07-2009 03:25 AM  8 years agoPost 24
FlaG8r

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Florida

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IMO, it's definately possible to auto the 500. Just make sure you apply quite a bit of negative pitch and bring it down fast. You can't float it down like a 600.

Life is tough, it's tougher if you're stupid

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09-07-2009 08:57 AM  8 years agoPost 25
Romak

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Scotland

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It is a DX7 Spektrum I have. Not sure if there is a delay function available but will look into it. I will adjust my hold curve as suggested. Meanwhile I will practise at a reasonable height when flaring out. Thanks

Still waiting for some decent weather here in UK

Cheers

Rod
14sg....... ;-)

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09-07-2009 09:38 AM  8 years agoPost 26
itsjojo

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North East Pennnsylvania

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great Post! I can auto my 600 and should auto more but I just ordered my 500 and autoing it is my goal. I can auto all day long in the sim, inverted too but the real deal is so much trickier. Thanks for the tips.

JoJo
Foreseeing My Flybarless Future!

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09-07-2009 10:58 AM  8 years agoPost 27
Romak

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Scotland

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Just been reading through the manual and I can find no mention of a throttle delay. Could it be done using a program mix?

Cheers

Rod
14sg....... ;-)

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09-07-2009 11:14 AM  8 years agoPost 28
Richardmid1

rrProfessor

Leeds, England

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I have the belt drive GF Trex 500 with the Align 425D blades, it autos really well, just auto into the wind with some forward speed and just flare it closer to the ground than you would with a bigger heli. Ive only done a dozen or so with my 500 and they went so well im going to try an inverted auto sometime!

Dont drop it flat with a load of negative pitch, that will kill off alot of headspeed and you will have a bumpy landing if your not careful. You only need like 2 or 3 degrees negative pitch, you will be suprised at how slowly you can decend and keep the headspeed up.

60% of the time, it works every time!

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09-07-2009 03:08 PM  8 years agoPost 29
DWS6

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Newark,DE

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Romak

If the DX7 has the delay feature it will be in your throttle hold menu I would think. My 9303 has a % value and next to it, a delay in seconds. I think it maxes out at 2 sec but its better then instant full throttle.

Dave Williams
Team Align

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09-07-2009 03:48 PM  8 years agoPost 30
Romak

rrApprentice

Scotland

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Dave

Almost certain that the DX7 does not have a delay feature on throttle. You can only select the percentage hold position, and the the switch you want to use. As you mentioned before, I will have to set up the percentage hold to, maybe 5% to stop esc re-initialising.

Cheers

Rod
14sg....... ;-)

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09-07-2009 04:01 PM  8 years agoPost 31
DWS6

rrKey Veteran

Newark,DE

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Rod,

You may have to make sure you are back in normal in an auto and rework you normal throttle curve then. If you flip out of hold it will be instant torque and RPM and it may strip the main gear. Especially if you have an upgraded motor. The stock motor may be OK, not sure though. I have a Scorpion 1600 in mine and I have stripped the main gear just spooling it up to fast after the ESC was initialized.

I set up mine previously by flipping into hold and just turn up the hold value until the motor starts to squeel and pulse. Pull the blades off to test and from idle up flip into hold wait 5 sec, flip out and see what you get.

Good luck

Dave Williams
Team Align

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09-07-2009 07:55 PM  8 years agoPost 32
Romak

rrApprentice

Scotland

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Hi Dave

Thanks for all the info. I did a few practice autos tonight in normal mode to get the feel of things. I messed with the throttle hold and set the %age up to about 10%, rotor kept spinning but pretty slow and the esc re-initialised. I will need to try again tomorrow and time things to see how long it takes to spool up. Thanks again for your help.

Cheers

Rod
14sg....... ;-)

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09-07-2009 08:38 PM  8 years agoPost 33
mmc205

rrElite Veteran

PA - USA

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Interesting someone posted this, i just autoed the 500 for the first time today. i had a .50 nitro at one time and did 5 or 6 medium autos but never really got good at them. so i decided today was the day to try on on the 500. i started at about 75-100 feet and decended at about 30 degrees of vertical. I think i decended a bit too slow as i didn't have much left at the bottom, but enough to set it down less than gently. I left no throttle % on, i didn't want the chance to chicken out

All in all it was not as bad as i thought and i'll be practicing them from now on.

***Logo 600 vbar***Henseleit TDR vbar***

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09-09-2009 08:36 PM  8 years agoPost 34
Rogman88

rrElite Veteran

West Monroe, LA

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Thanks for all the great posts. You answered my questions and then some. I had originally posted this to see if it was possible. My 450 is too small so I haven't even tried autos on it. I was going to buy a bigger bird to practice autos on and was looking at the 600. The problem is the 600 is soooo much more expensive to fix. If I can get away with a 500 to meet my needs for 3D (I know it will do that) AND have something that I can practice autos on, then I can have my cake and eat it too. Looks like I need to get a trex 500

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09-09-2009 09:00 PM  8 years agoPost 35
russ

rrApprentice

england

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i was over the flying field the other day two of the guys both had 500s and they could both auto with no prob well they made it look easy anyway

russ

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T-REX 500 › Can you autorotate a trex 500 well?
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