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T-REX 450 › 450 pro back in the air.
04-21-2009 12:24 AM  9 years agoPost 1
whyfly

rrVeteran

Temecula C.A.

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I got my 450 pro back in the air it took about a week to get parts for it.I really love this heli, ok my flying sucks so I dont want to hear it....First video is me second video is a good friend testing his 4s set up.

http://www.youtube.com/watch?v=kXySUXhdDAY

http://www.youtube.com/watch?v=dwDFq8vTsZQ

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04-21-2009 01:05 AM  9 years agoPost 2
caseyjholmes

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Portland, Oregon

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Nice flyin' guys.
Can't wait to get my 4s setup rockin'.
What motor is he using in that?

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04-21-2009 01:14 AM  9 years agoPost 3
whyfly

rrVeteran

Temecula C.A.

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It's a Scorpion but he's having some issue with it.
I'm going to rock a 4s set up soon.

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04-21-2009 01:28 AM  9 years agoPost 4
caseyjholmes

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Portland, Oregon

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Sweet.
I'm trying to decide between the 2221-8 and -10. Can't make up my mind.

We'll all have to fly together and compare 4s setups when we are done I'm "just down the road" from you guys in MoVal.

Keep at it.

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04-21-2009 01:40 AM  9 years agoPost 5
duceduc

rrKey Veteran

Saitama-Ken, Japan

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I like it.

Duc S
Do It! Do It!™
AMA:REVOMIX
RCK:24005615-01

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04-21-2009 01:44 AM  9 years agoPost 6
whyfly

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Temecula C.A.

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I think his is a 10 with bearing issue's.
Sure let me know its allways good to meet new guy's.

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04-21-2009 03:32 AM  9 years agoPost 7
jyrorc

rrApprentice

Poway, CA

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I would get the 10 or the 12. with the eight the head speed would be crazy but some people like that. the 10 with 11 tooth pinion is good power 90% flat tell the bearings start to go.

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04-21-2009 03:36 AM  9 years agoPost 8
whyfly

rrVeteran

Temecula C.A.

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I think JGF 500 2900kv with a 12th.

http://www.helidirect.com/jgf-500sh...haft-p-4814.hdx

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04-21-2009 05:36 AM  9 years agoPost 9
Dale M

rrApprentice

Lakewood Ca USA

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+1 for the JGF! 4s in a V2 and a Furion.... Solid motor

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04-21-2009 03:09 PM  9 years agoPost 10
whyfly

rrVeteran

Temecula C.A.

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Dale m

Which motor are you running ?

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04-21-2009 09:08 PM  9 years agoPost 11
butters149

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monterey park, ca

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is the 500TH with a 14T pinion good? I think it will run cooler and give me more flight time.

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04-21-2009 09:14 PM  9 years agoPost 12
Dale M

rrApprentice

Lakewood Ca USA

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I have been running the rex on the 450SH for a long time now... 8 minute flights with really good power. The Furion has the 450TH. More power (not that it was needed) but only 6 minute flights.

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04-21-2009 09:23 PM  9 years agoPost 13
butters149

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monterey park, ca

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this 450 pro motor has 4 minute flight time and runs super hot

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04-21-2009 11:31 PM  9 years agoPost 14
bjacks

rrKey Veteran

Ft. Worth, Tex.

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450 Pro
caseyjholmes Curtis is running a 10 on his Rave with a 4s battery and is it fast. Bobby(my motor also runs real hot also in my 450 pro, after 2 minutes of hoving you can't hardly touch it)

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04-22-2009 05:49 PM  9 years agoPost 15
butters149

rrApprentice

monterey park, ca

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How do I calculate the headspeed to compare motors and pinions? The 500Th doesnt seem to have the pop that the align motor has, maybe less torque? I am running a 14T, should i go a 13t for more pop? whats a good pitch for pop.

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04-23-2009 03:13 AM  9 years agoPost 16
whyfly

rrVeteran

Temecula C.A.

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I flew 4 packs back to back on my 450 my last flight had no power and no fun to fly.I also flew a 4s set up today all I can say is sweet.

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04-23-2009 04:54 AM  9 years agoPost 17
butters149

rrApprentice

monterey park, ca

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are u flying the 500th?

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04-23-2009 02:25 PM  9 years agoPost 18
bjacks

rrKey Veteran

Ft. Worth, Tex.

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500TH
butters149 I put a 500TH in a 450V2 with the stock pinon(I think 13 tooth) and it was a pig, when up one tooth and it came alive, they run well on 14 and 15 tooth pinons. Bobby

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04-23-2009 05:10 PM  9 years agoPost 19
butters149

rrApprentice

monterey park, ca

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i am running 14T, should i use a 15? That might be a little too much.

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04-23-2009 09:35 PM  9 years agoPost 20
jyrorc

rrApprentice

Poway, CA

My Posts: All  Forum  Topic

How do I calculate the headspeed to compare motors and pinions? The 500Th doesnt seem to have the pop that the align motor has, maybe less torque? I am running a 14T, should i go a 13t for more pop? whats a good pitch for pop.
The 500th has more torque with its lower KV. Easy head speed calculator below. going up in head speed will give you more power to a point. 12 degrees

http://www.readyheli.com/Online_Hea...ulator_s/81.htm
i am running 14T, should i use a 15? That might be a little too much.
Some people run it with a 15t and a good battery. The way to go is a 4s set up.

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