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B.J. Super Fantasista

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Old 05-15-2018, 01:15 PM
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J-P
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Default B.J. Super Fantasista

FRED, a friend of mine, received yesterday a B.J. SUPER FANTASISTA
He already started working on the plane, and will send me pics to post here.
I'm really interested flying this plane I saw in Argentina during the 2017 WC.
The shipping box arrived in perfect conditions with UPS.
Everything being well secure in the box, the plane has not a single scratch.

















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Old 05-16-2018, 10:41 PM
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Let's start with the Weigh-In

Fuse 858 g
Canopy 91 g
Left Wing 309 g
Right Wing 314 g
Left stab 88 g
Right stab 87 g
T-Can 69 g
Rudder 62 g


















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Old 05-17-2018, 11:58 PM
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Servos Installation and hinging.
Note the Emcotec adapters for the wing servos
Thin CA is used for the moving surfaces, Z-POXY for the wing panel.




























Last edited by J-P; 05-18-2018 at 12:11 AM.
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Old 05-18-2018, 01:29 PM
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Installation of control horns, and linkages.


























Last edited by J-P; 05-18-2018 at 11:25 PM.
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Old 05-19-2018, 01:03 AM
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bem
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Hi,
Can You say something about the brakes/flaps on the wing?
Is it for slowing down the plane in vertical downlines?
Some extra weight of course (2 x Futaba BLS153 = 50 gram)

/Bo

Last edited by bem; 05-19-2018 at 12:38 PM.
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Old 05-19-2018, 03:52 AM
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Hi BO,
Flaps are used in combination with ailerons for normal flight, snaps, air brake etc ....
Plane is very light , and 2 extras 153 or 173 BLS servos are not a problem.
There is even another extra one for the front " rudder "
Don't forget there is just a single 9170 SV servo for the flying stab...
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Old 05-19-2018, 04:00 AM
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Completing the wings, and fuselage ready ...










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Old 05-19-2018, 08:29 PM
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My plane came in a bit on the heavy side. It is the fixed stab version powered by a Pletty Advance. To reduce weight (46 grams), today I removed my flap servos and bolted a carbon fiber plate in the servo well with the flap servo pushrod bolted to it. You do not need the flaps. The plane snaps on ailerons alone quite well and has plenty of downline drag with the ESC braking. I have about 30 flights so far on mine. And you avoid a bunch of unnecessary radio programming. I only have 1128 grams available for 10 cell flight pack with the elimination of the flap servos. I am also trying out an MKS HV747 servo on the rudder. So far so good on the MKS servo. It is light, small and has plenty of torque for a rudder servo. I have JR NX3421's on elevators and front rudder(frudder) and JR 9411's on ailerons. I can eliminate some more weight by eliminating the serial bus hardware that I needed to accommodate all the extra servos. Need to fly it a few times to make sure the change is fine before I do that.
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Old 05-19-2018, 10:05 PM
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J Lachowski,
If You use ~5000 mAh Lipo and need rather light LiPos there is a new Hacker TopFuel 5100 mAh 20C 5S Competition F3A 2018:
https://www.hacker-motor-shop.com/Battery-pack-and-Accessories/TopFuel-F3A.htm?shop=hacker_e&SessionId=&a=catalog&p=10784
About 1096 gram for 10 cell pack.

I use myself the smaller version of this Competition F3A LiPo, the 4600 mAh (10 cell pack is between 989-992 gram).

/Bo

Last edited by bem; 05-19-2018 at 10:07 PM.
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Old 05-20-2018, 04:16 AM
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I built one of these for Joe Walker and he is pleased with its performance. We are building a second one with a contra (?contrasista?). We have also installed a pull pull rudder to decrease the inertia in the tail.
Not sure the flaps are needed. I plan to put a piece of double stick tape between the edges and tape the surface, then drive the whole thing with one BLS174. J-P , I notice you have an aftermarket output arm on the BLS 174. Mine have a larger than standard output spline and I have been unable to find an aftermarket output arm for the larger spline. What was your source for the output arm ?
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Old 05-20-2018, 07:54 AM
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Originally Posted by bem View Post
J Lachowski,
If You use ~5000 mAh Lipo and need rather light LiPos there is a new Hacker TopFuel 5100 mAh 20C 5S Competition F3A 2018:
https://www.hacker-motor-shop.com/Battery-pack-and-Accessories/TopFuel-F3A.htm?shop=hacker_e&SessionId=&a=catalog&p=10784
About 1096 gram for 10 cell pack.

I use myself the smaller version of this Competition F3A LiPo, the 4600 mAh (10 cell pack is between 989-992 gram).

/Bo
I have a pair of F3A Unlimited 5100HV packs that I am using right now and am down to my last set of the F3A 5400s. There is still some weight I can take out of my airframe. I am now at 1132 grams of weight for flight packs. I still have the option of getting rid of the 4 wing adjusters, using a smaller Rx pack, and eliminating a switch to name a few.

Last edited by J Lachowski; 05-20-2018 at 07:58 AM.
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Old 05-20-2018, 09:43 AM
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Originally Posted by bem View Post
J Lachowski,
If You use ~5000 mAh Lipo and need rather light LiPos there is a new Hacker TopFuel 5100 mAh 20C 5S Competition F3A 2018:
https://www.hacker-motor-shop.com/Ba...atalog&p=10784
About 1096 gram for 10 cell pack.

I use myself the smaller version of this Competition F3A LiPo, the 4600 mAh (10 cell pack is between 989-992 gram).

/Bo
I donít know if anyone imports those here in the USA
A few European dealers sell them but wonít ship them to the USA... perhaps itís part of the new battery shipping rules ?
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Old 05-20-2018, 02:54 PM
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Originally Posted by ltc View Post


I donít know if anyone imports those here in the USA
A few European dealers sell them but wonít ship them to the USA... perhaps itís part of the new battery shipping rules ?
Yep, getting batteries shipped from overseas is nearly impossible now.
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Old 05-21-2018, 11:33 AM
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Hi Blake,
These aftermarket output arm for the BLS 154 come from
https://www.lindinger.at/fr/
but I don't know if they still have them in stock
JP
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Old 05-21-2018, 11:37 AM
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Old 05-24-2018, 03:53 AM
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As we are flying at the same field, Fred decided to reinforce the landing gear plate as I did.
Very light and strong.
He changed the landing gear for an aftermarket carbon one, and will use nyl-stops as well.
Note on pic Nį5 the extra long bit drill needed.
MP JET blind nuts are CA directly on the landing gear legs




















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Old 06-05-2018, 12:05 AM
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Old 06-05-2018, 03:49 AM
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In Joe Walker's #2 Fantasista (Contrasista) I could not mount the "frudder" servo as shown because we are using an Adverun drive which doesn't allow room for the servo in the fuselage. I therefore mounted the servo in the "frudder" itself and the output arm is fixed to the fuselage. It worked quite well and the "frudder" is quite solid possibly more so than the shown method which I used for #1Fantasista.
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Old 06-05-2018, 01:05 PM
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Next is installing the Plettenberg and Mezon ESC tray, battery tray and ailerons and flaps quick connect tray.





























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Old 06-13-2018, 07:08 AM
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Thanks for posting this info.
We have them in stock
https://www.f3aunlimited.com/bj-craf...ith-fixed-stab.
Mike Mueller
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Old 06-15-2018, 10:12 PM
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Rudder and elevator servos installation























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Old 06-18-2018, 04:47 AM
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Tail wheel installation and rudder servo












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Old 06-19-2018, 03:42 AM
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Stabilizer installation
Fred used some black venilia velvet on both sides, giving a minimum friction and quite no gap with the fuselage.
First the tubes are drilled on one side using the screws coming with the kit, then the other side of the tubes are glued in the stab with 30 mn epoxy.
You can easily check for the right friction.
When dried, you just have to remove the two screws if you want to remove the flying stab.
In order to secure the front tube glued, Fred drilled a hole trough the socket and the tube and glued in a small carbon rod.





















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Old 06-20-2018, 04:28 AM
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Elevator command completed.







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Old 06-27-2018, 01:11 PM
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The T-Canalyser is installed with a third fixation, and some black velvet venilia for a better fitting.

















Last edited by J-P; 06-27-2018 at 01:14 PM.
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