EF 58 Extra building/flying review,Electric vs glow

[Donatas]

Hello dear FG members,

As title say this thread will be about Extreme flight 58inch Extra. Looong indoor season is over and now when weather is great its time for some outdoor hucking.
Naturally this will be not first review on this great plane on rc forums, but i will try to describe my setup and each (glow and electric) power system + and - , i hope some of you will find this information interesting and usseful. Ok lets start;


Few weeks ago i receive two boxes from Freestyle-rc (Mr.Daniel), both with same red/blue/white Extra's.


One kit was with EF power set, really powerfull Torque revolution motor and Airboss 80a ESC.


Not only planes from Extreme Flight is designed as piece of art, plane packing i also wery well done. Planes are protected from damage durring transportation, both planes come without a scratch.

Here is example what i have in mind by saying packing of plane is very important, take a look to pictures of my first EF plane Vanquish, United states post, Express mail sure did job well... testing construction of box and plane....





Half of box was wet and bend, but all plane parts was in perfect shape, also thanks good EF put each part to plastic bag, so no moisture can get to wooden parts.

Ok lets go back to Extra, as i told i get two planes, one for me and one for my friend Ricardas, he bought this plane because he already had good equipment (right size Hitec servos and OS62 4c engine) from one profile. And my plan was to build Electric extra powered by 5S lypo Flight Power packs.

I will build and compare both plane, flying performance, power weight of each power set + and - .

More to come...

[Uncle Brett]

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[weezle]

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[1bwana1]

I love my electric version of this plane. I flew it again this morning!

[BR289]

I built mine with a two-stroke OS.46. Not a ton of power but more than enough to have a good time with. I am really happy with the way the plane flies and will continue to fly it each time I go to the feild.
I may do one Electric too in a different scheme...Good luch with your build and have fun..Its a great plane.
Blair

[1bwana1]

One thing on the build. I used the recommended EF Torque power system, on 5S batteries. I found that mounting the rudder servo in the rear in a push/pull instead of the pull/pull setup shown in the manual provided for a better range of CG. The perfect CG allows me to position my batteries in about the center of the tray. The cutout and reinforcement for the rear mounted servo are already there, so it was a very easy thing to do.

[Simpleton]

When I built mine, I didn't really have the right prop for it. I did have some props that I run on a Saito 100, a 15X6 Pro Zinger for one. Mounted it up and it turned about the same RPM as the Saito 100 turns it. I know, you're not supposed to try to match glow prop/rpms with an electric, but the plane flys really well with this set up. I have a 15X7 Xoar electric prop to try, but the 15X6 is actually not too bad.

[Donatas]

	Quote: Originally Posted by 1bwana1
	One thing on the build. I used the recommended EF Torque power system, on 5S batteries. I found that mounting the rudder servo in the rear in a push/pull instead of the pull/pull setup shown in the manual provided for a better range of CG. The perfect CG allows me to position my batteries in about the center of the tray. The cutout and reinforcement for the rear mounted servo are already there, so it was a very easy thing to do.

Nice to hear such interest in really short time

I already build and flew my electric Extra 18 times, and i really like this plane, it almost fly same as my AFPD extra! With some more time for tuning it will be perfect plane for Artistic Aerobatic (F6A). Today i flew Extra in quite hot weather, ESC was mounted in place where manual suggested, after first flight i notice it become very hoot, it was not safe to make second flight, so i went to our workshop and place ESC under motor box with depron sheet glued to cowling for better cooling. Next flights was ok and ESC remain just slightly warm after 5;30min flight, (most harriers and hovering). But now I feel plane is to nose heavy, so i will have to figure out way how to get it back. I don't like idea putting rudder servo closer to tail because it increase tail inertia, and make flying not so pleasant....
I use Airtronic 94751 on rudder (about 80oz of torque), and i feel that rudder is not so powerful for my...(Just to be clear, Extra rudder is very effective and have more than enough power for regular flying and good 3d, but for my flying style (KE loops, aggressive snaps, etc..) i prefer to have more power on rudder on any plane). Maybe it is influence from to much indoor flying, i don't know...
First option i see is small SFG's on wingtips, other option suggested Mr.Chris, simply try stronger servos. If i put heavier and more powerful Hitec servo, i will solve both problems CG and torque on rudder, but probably i will lose precision? What you think guys?

Here are some shoots from today flying;

Touch down

Airbrush touch for better look, it take not so much time, but for sure give good results! Vanquish in background.

Isn't this a beuty?

Few words about my electric Extra setup;

Battery; Flight power EVO25 3700mah 5S packs, each of them is about 480-490g with connectors.
Motor; Torque Revolution.
Prop; APC-E 15x8.
Servos, Hitec 225mg on wings, Airtronic 94751 and HS 5245mg on elevator.
RTF weight is 2564g.

Such setup is crazy powerhouse! I never had plane with such power! Flight Power lypos are amazing, i set my thr curve on radio to 90 percents, and still i don't need to move stick all way up! And so far im only braking in batteries, tomorrow it will be 5th flights for all packs, so after 5th flight i will set timer for 7;30min instead of 5;30min. Right now after 5;30 quite hard 3D flight i have to charge pack about 2000mah, and packs affter flight are just little warm.
I also put white tape on side of battery to start marking (with marker short line on side of pack) each charging, so i will be able to know and share with you real numbers of cycles/flights i can make with top brand product.


Equipment placing. Notice 3 lines of velcro, it is necessary to attach pack really well for hard 3d flying, im not sure how much g this pane can handle, but im sure you get impressive numbers when you multiply G to battery weight!

[BR289]

Dude, Thats wild! I like the airbrush work alot....Really cool....Great pictures too.
Blair

[Donatas]

Glad you like it Blair.

Here few more pictures of electric Extra;


Piece of depron for direct airflow to ESC.






Second Extra, with glow conversion set.

Here list of second Extra parts weight;
Left Wing 150g
Left aileron 42g
Right wing 146g
Right elevator 44g
Rudder 30g
Elevators and stab 70g.
Fuselage 510g.
Carbon landing gear 50g.

More spec's comming soon.

[JVDO]

very nice review / pics don!!
As you know I'm also flying an electric one ... It rocks!

[BR289]

I am thinking I should build an electric version even though I am quite happy with the glow version.
That airbrushing really sets the plane apart from others and its not "overdone" and matches the scheme of the plane....
Blair