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HelicopterGasser Model RC HelicoptersOther › Align Gas Conversion fever
09-04-2009 01:40 PM  8 years agoPost 241
pgkevet

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Wales

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I thought low headspeed caused a nod. Only causes I've seen for a wobbly was related to changes in phasing during rotation.. as in sloppy washout, loose washout balls/pins and the like...

pgk

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09-04-2009 01:53 PM  8 years agoPost 242
copperclad

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NY

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Hi PK

i have been playing with a TT innovator , they are notorious for TBS ( toilet bowl syndrome ) , they come setup for a 1500 RPM headspeed and it seems dialing it up helps , it is just a suggestion , and i agree with you completely , check the links and balls and arms for anything loose also , cheers

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09-04-2009 05:35 PM  8 years agoPost 243
Fixit

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UK

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check your headspeed , i believe low headspeed can cause it to wobble , and remember we are not going to believe anything over 45,000 RPM
Now were did I put my calculator

Yep I know a low head speed can cause the head to wobble after running the Raptor 90s, they would play up around 1,600 to 1,700 but the 700G hovered perfectly until I changed the paddles and main gear so that’s why I thought it could be the paddles.

I'll have a good look at the head to make sure nothings loose but I'm not expecting to find a fault there.

I only like to fly gassed up

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09-04-2009 05:38 PM  8 years agoPost 244
pgkevet

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Wales

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so that’s why I thought it could be the paddles.
..sure you changed both paddles?

pgk

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09-04-2009 06:38 PM  8 years agoPost 245
Fixit

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UK

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..sure you changed both paddles?
Trust you to come out with that statement yes I changed both after weighing them.

I only like to fly gassed up

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09-04-2009 08:09 PM  8 years agoPost 246
pgkevet

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Wales

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Trust you to come out with that statement yes I changed both after weighing them.
..and you put one each side ?

pgk

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09-04-2009 10:08 PM  8 years agoPost 247
Fixit

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UK

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and you put one each side ?
Have you taken some pet remedy today or something yes one each side of a matching pair and both facing the right way at the same distance from the fly bar carrierI think

I only like to fly gassed up

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09-05-2009 12:14 AM  8 years agoPost 248
zorba

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Montreal, Quebec, Canada

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Are they black or white?

3-450's,rex500ESP,rex600G,Rex700G,Raptor60G,FreyaCW-EXII, VarioEC155, Logo20, Cessna310,CL-415,

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09-05-2009 12:24 AM  8 years agoPost 249
Fixit

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UK

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Are they black or white?
Black up to about 1,900 then they turn white just as I'm turning green

I only like to fly gassed up

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09-05-2009 11:21 AM  8 years agoPost 250
zorba

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Montreal, Quebec, Canada

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priceless

3-450's,rex500ESP,rex600G,Rex700G,Raptor60G,FreyaCW-EXII, VarioEC155, Logo20, Cessna310,CL-415,

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09-05-2009 11:29 PM  8 years agoPost 251
aliazhar

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plano, TX

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my 2 cents

Hello Fixit,

Excellent work...very nice.

I would suggest to use 20T Module-1 Pinion...it will give you much better mesh with the main gear..
you will also need to use Microheli 115T main gear.

In appriciation of your work, i can send you a Trex-700 20T Module-1 stock pinion. let me know where you want me to ship it.

Best Regards
Ali

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09-06-2009 12:12 AM  8 years agoPost 252
Fixit

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UK

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Hi aliazhar
Thanks for your input and as I have been contemplating changing over too Mod 1 your kind offer is a life line and well appreciated.
I will PM you later
Cheers
Fixit

I only like to fly gassed up

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09-06-2009 06:03 PM  8 years agoPost 253
Fixit

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UK

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I managed to try the 700G today and it was good and not so good.
The lighter paddles just about fixed the head wobble at 1,750 still on a rich setting, all seemed well just hovering about and after a quick look at the plug I took it back out and tried a gentle climb with no problem but when I gave it full stick the gear stripped again but this time it took the teeth off instead of just shredding the gear ends.

It’s obvious to the eye the pinion is running out slightly so the 700 main gear might not be at fault but I don’t have much faith in the Mod 7 gears now for this application.
I can get the Mod 1 main gear locally and Aliazhar has offered to send me the Mod 1 pinion so it’s grounded until then.

I only like to fly gassed up

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09-06-2009 06:15 PM  8 years agoPost 254
aliazhar

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plano, TX

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just thinking loud...
the way you made the pinion, it might have a little runout...since you have grinded the original pinion and put the new one on it...there is a big chance that it has a runout...
thats why the pinions are always made as a single piece...

I personally wont use 0.7 mod on a gas engine..thats out of question.

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09-06-2009 06:24 PM  8 years agoPost 255
Fixit

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UK

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just thinking loud...
the way you made the pinion, it might have a little runout...since you have grinded the original pinion and put the new one on it...there is a big chance that it has a runout...
thats why the pinions are always made as a single piece...

I personally wont use 0.7 mod on a gas engine..thats out of question
Yep your right the pinion is out, I tried making three this way and I think only luck would get it perfect and mine had run out get it.

Seen as the 700 nitro guys have problems with the Mod 0.7 setup the Mod 1 conversion is the way forward.

I only like to fly gassed up

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09-06-2009 06:31 PM  8 years agoPost 256
aliazhar

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plano, TX

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when you will get this pinion...you can test it...this pinion is made with 1/1000 precision !....you are gona love it.

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09-06-2009 06:43 PM  8 years agoPost 257
duke666

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Hampshire, UK

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I sure hope some one shows Align a mod 1 pinion & main gear before they release the 700G.

Duke

OOOPPS............

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09-06-2009 07:02 PM  8 years agoPost 258
Fixit

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UK

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I sure hope some one shows Align a mod 1 pinion & main gear before they release the 700G.
Duke
I must stress I haven’t given the 700 Mod 7 a fair chance because my pinion is probably the cause and its just out of preference and guidance from others that I've decided to go down the Mod 1 track.

I only like to fly gassed up

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09-06-2009 07:28 PM  8 years agoPost 259
duke666

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Hampshire, UK

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Still it would be nice as some of the nitro guys are having the 0.7 fail. That said, some are having the mod 1 fail too.

Duke

OOOPPS............

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09-06-2009 07:38 PM  8 years agoPost 260
Fixit

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UK

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some are having the mod 1 fail too.
Mod 1 always worked for me on the Raptor conversions but the main gears are solid apart from the centre.

I only like to fly gassed up

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Scorpion Power Scorpion Power
HelicopterGasser Model RC HelicoptersOther › Align Gas Conversion fever
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