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Old 04-09-2011, 02:55 PM
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EXTREME FLIGHT 125" EXTRA / DA 200 Build

Extreme Flight 125” Extra / DA 200 Build

Hey Guys,

My good Friend John Hagel has a sweet plane on the build table. I thought I would get a thread going were we could share it with everyone. John is building a DA-200 powered Extreme Flight Extra for Randy Brown in Houston, TX. Randy has already owned several 4 cylinder engines so the power plant is not going to be new to him. This will just be a new combo for him. John and I are good friends and it seems like I end up at his shop or he ends up at mine a few days every week. John’s attention to detail in his builds has won him best of show at several fly ins. This thread is going to be a little different in the fact that it’s going to be a Fast Thread instead of a Fast Build LOL.


John,

I’ll let you take it from here. Where do you want to start?
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Old 04-09-2011, 03:36 PM
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Can't wait to see this one.
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Old 04-09-2011, 03:51 PM
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Nice. I have one too
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Old 04-09-2011, 04:22 PM
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Thanks for the intro Charles.

I'm going to try to make this thread interesting to read for someone that's put this class of plane together. I'll try to concentrate more on the things specific to this airplane, engine, and components.
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Old 04-09-2011, 04:29 PM
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Quote:
Originally Posted by ericb View Post


Can't wait to see this one.
Here is a few to start.
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Old 04-09-2011, 04:33 PM
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1. Receiving, Un-boxing, and Component List

My first impression of the aircraft was WOW this thing is really big. Quality is on par with what I have come to expect from Extreme Flight. The aircraft is packaged extremely well, no problems noted while inventorying all the parts and assemblies.

Components
A/C - Extreme Flight 125 Extra 300
Engine - Desert Aircraft 200cc 4 cylinder
Exhaust system - J-TECH 2n1
Spinner Custom built Tru Turn
Prop - Mejzlik 30X13 EVO
Servos -
Ailerons - 6 Hitec HS-7950s
Elevators 4 Hitec HS-7950s
Rudder 2 Hitec HS-7950s
Throttle - Hitec HS-5665MH
Wheels - White Rose
Power System -
Smart- Fly Power System Competition 12 Turbo Plus
Smart-Fly adjustable regulator (Ignition)
Fromeco Badger Slider (Igniton Switch)
3 Fromeco Relion 5200 mah Batteries
DC-UP Mark II Cricket
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Old 04-09-2011, 05:02 PM
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I asked to be added to the list for the Extra last week and can hardly wait. It will be worth it I think. Good luck with yours.
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Old 04-09-2011, 08:51 PM
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jhagel, I've got the exact same plane, motor, and servos. I know you don't know me from shinola, but the 3 per aileron, 2 per elevator isn't needed.

I originally had Wayne's 30 degrees on ailerons and its now down to 21 degrees. I was really worried about the ailerons not being up to the task but that wasn't true. The flight surfaces are very effective and using a standard 2 per on ail, and 1 per works great. I just used the HPP-21 to program the servos and was able to just "Y" the ailerons. I use under 400 mah per side per flight.

EF recommends 3 per aileron to reduce flex, but I found that there is no flex because there's a servo on each end of the aileron.

Suit yourself though, I'm not going to discourage you on your setup. If it makes you feel better about it then by all means go for it. I'm just telling you my experience with the same servos/motor. BTW, the rudder on this plane is crazy effective. You'd never know it by looking at it though. This thing will do tight little knife loops and very little up elevator is needed. In knife edge flight the rudder works almost as good as an elevator would in level flight.
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Old 04-10-2011, 08:01 AM
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tap....tap.tap... is this on?
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,,,
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Old 04-10-2011, 08:01 AM
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tap....tap.tap... is this on?
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Quote:
Originally Posted by plane View Post

EF recommends 3 per aileron to reduce flex, but I found that there is no flex because there's a servo on each end of the aileron.
actually in our testing it was due to blow back... not flex.....

but Chris was using 7955' s at the time.. not the 7950's...

and yes, only one per ELE per is fine, but the extra one may help with balance witht ht e200
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Old 04-10-2011, 10:04 AM
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Thanks for the input guy's.
After talking to Chris I decided to use 3 servos on the ailerons because of blow back, this may be over kill with the 7950's but safe. Two servos in each elevator,mainly for W&B. Rudder servos in the empennage for weight and balance and I really like the push-pull vs the pull-pull set up.
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Old 04-10-2011, 10:29 AM
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tap....tap.tap... is this on?
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I run two Futaba s9157's on my Rudder and Chris is running two HS-7950's

Plenty of power..
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Old 04-11-2011, 09:19 AM
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This is going to be a very exciting plane for me. John is quiet possibly the most detailed builder I have seen. He did an Extreme Flight yak for me two years ago and we ordered this airframe almost a year ago. It has been a long awaited airframe. I hope I treat it well for a long time to come. Good luck with the build thread and enjoy.
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Old 04-11-2011, 09:32 AM
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Cool. I hope this thread doesn't do what the 110" Yak thread did....made me want to spend a lot of money.
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Old 04-11-2011, 07:26 PM
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Inspection and and fitting of major components

Fitting and Inspection

Sorry no picts.
This part of the assembly is necessary to make sure the a/c is going to fly as it was originally designed, but kind of boring to do unless there are problems.
During the first assembly of the a/c I check glue joints and test the fit of all components. All looked good, no exceptions were noted
After the a/c is completely dry fit and while it is still assembled I level the a/c longitudinally and laterally using the canopy deck as the reference. Using a laser I check the horizontal line on the firewall to the canopy deck, the center line of the wing leading edges and the center line of the horizontal stabs. Then I check the vertical line on the firewall to the center of the vertical stabilizer. Everything checked remarkably square and true to the canopy deck.
Next I check incidence of the wings and horizontals. My reference is the longitudinal/lateral line of the canopy deck. I use the Hanger 9 Angle Pro as my incidence meter. The horizontals tested plus or minus .01 (one tenth of one degree) no matter what station I tested them at. The wings tested within .03 (three tenths of one degree) degree at all stations. This is the truest to design a/c out of the box that I have assembled. During the last 12 months I have put together 9 a/c for friends and myself and I have never found an ARF built this accurate before.

Picts to come, the Engine, Exhaust, and initiall cowl installation are next.
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