Comment by Kenneth Young on September 1, 2012 at 5:28am

Very cool! Traditional helicopters are still and will always be my favorite. I have one question. How and where do you fit everything on the 450? I have a EXI 450 and could barely fit the receiver and speed controller in it.

Developer Comment by R_Lefebvre on September 1, 2012 at 5:47am

Manfred, great result considering the MediaTek GPS performance.  That's about as good as it gets.

Comment by Ravi on September 1, 2012 at 8:01am

amazing! i never got my align 450 to loiter like that, just  few questions. r u using the APM gyro for yaw  or external gyro  did u use sonar. can u share the PIDs. or can u share param file. wonderful. i used the first batch of APM2.0

Comment by Manfred Dickgiesser on September 1, 2012 at 12:50pm

Hi Kenneth thanks

I have posted some pics in this link :

http://www.diydrones.com/xn/detail/705844:Comment:959115?xg_source=...

Hi Ravi thanks

I use APM2 for everything, no sonar.

The PIDs

Comment by Manfred Dickgiesser on September 1, 2012 at 1:08pm

This PIDs might not fit to every T-Rex 450,

it depends very much also on your Headspeed, I fly with about 3000rpm

if you change Headspeed you may have to change some PIDs

Developer Comment by Randy on September 1, 2012 at 6:53pm

Great stuff and love the video!

Comment by Perecastor on September 2, 2012 at 4:34am

Nice work !! I love traditional helis !

Comment by Ravi on September 2, 2012 at 8:19pm

heli's are complex to tune them mechanically for loiter. but APM2 is very powerful code so may be one day APM2-heli would make it easy. but for the present APM-heli code great achivement by Manfred.

Comment by Manfred Dickgiesser on September 2, 2012 at 10:10pm

Thanks Ravi

Yes a Heli is much more delicate to tune, because it’s much more reactive compared to a Quad. And you see the tiniest wobble in attitude created by the APM much more than on a Quad. 

Compare a Quad to a T-Rex 450 it’s like comparing a Bus with a super bike.

Comment by Hein on September 12, 2012 at 10:23pm

Hi Manfred,

Any updates on waypoint navigation?  Did you do some Auto flights?  Would like to hear about it.

Greetings,

Hein

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