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Old Sep 27, 2013, 02:02 PM
tender
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Europe - Slovakia
Joined Oct 2004
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New STORK-6 F5J from Heinrich

New STORK 6 for F5J

Visibility and endurance test from today:

- duration of flight ............ 101 minutes
- flight line lenght ............ 45,6 km
- average gnd speed ......... 27,4 km/h

- maximum ground speed ... 117,3 km/h
- highest altitude .................... 828 m
- max upwind distance ......... 1162 m
- max down the wind .......... 1228 m
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Old Sep 28, 2013, 07:53 PM
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Palo, What is your setup in the Stork 6? Motor, ESC, prop. What is the AUW? Post some pictures of the build, and layout of servos, etc.

Nice flight, 1 hour 41 minutes
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Old Sep 29, 2013, 05:50 AM
tender
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Europe - Slovakia
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Quote:
Originally Posted by 320pilot View Post
What is your setup in the Stork 6? Motor, ESC, prop. What is the AUW?
cone 36 mm / propeller 15/8" AE / motor NEO 15-790 (from Cermark) / ESC SPIN 44 (from JETI) with S-BEC / accus Turnigy nano-tech 3S 1800 (25-50C) enought for 5 x 30 s without recharging*. AUW is 1860** g, because I prefere bigger motor with higher efficiency, not light motor working near a current limit. Temperature in the board after 30 s of motor running go up no more as 2°C ! But if you use smaller motor, smaller accus and lighter servos you can cut -150 g without problems...

Pictures with some details can put here a bit later. Now we have a perfect weather, so I must fly

Palo

*/ I prefere higher capacity of accus, because my airfield is approx. 80 m from my yard and I donīt want walking between landing point and charger after each flight

** AUW is 1860 g, not 1680 g !!! Sorry for my stupid mistake
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Last edited by tender; Sep 30, 2013 at 01:12 PM.
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Old Sep 29, 2013, 06:25 PM
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1680 grams, that's light!
My Xplorer 3800 electro, with the X1 wing weighs 2098 grams. That's with a heavier (200 gm) Neu 1110/1Y/6.7 motor, RFM 16X10 prop, CC Ice Lite 100 Esc and TP 3S-1800-70C LiPo.

I safely get two 15 second climbs, could get a third
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Last edited by 320pilot; Sep 30, 2013 at 02:54 PM.
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Old Sep 29, 2013, 07:30 PM
AZ Outback
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Tender's ship is the new breed of F5J ships, they almost have the danger of being designed to light. Power systems are 3oz and 850maH 3s batteries, will be fun to watch. They should fall into the 50oz to 60oz AUW, since they do not have the launch stresses of F3J. Just buying an electric fuselage to use with F3J wings and stabs will not be the same as buying F5J designed ships.


Tender

Is it time to put away the swimming pool?

The Best

Robert
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Last edited by Robert Burson; Sep 29, 2013 at 07:37 PM.
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Old Sep 30, 2013, 12:48 AM
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My Stork weights 1.8kg and I am still waiting for the new tips to arrive. Any case, Stork has relatively narrow wing and also the airfoil feels quite slippery. Airfoil also does not react very well to camber changes. My Stork's 1.8kg weight is about the perfect weight for normal weather, but in floating weather it could be much lighter.

On the other hand the X1 320 is flying has more area and and much more lifty airfoil. I have no doubts that despite its weight, 2.1kg X1 floats better than my 1.8kg Stork. Tender's light Stork with the long tips is another case, but I cannot yet comment how they improve the performance. Normally increasing span improves glide rather than floating performance.

--

While competing in F3J Eurotours I have been many times in same team with some very top F5J pilots, including the 2013 F5J Eurotour winner Primoz Rizner. He says that the very light F5J planes are needed only in special conditions. Normally it is fine to have a light lamination F3J wing and buy an e-fuse for it.

Most of the time F5J flying is done at same weights as F3J flying. It is about catching a thermal and following it downwind - and penetrating back upwind. Hence it is also important to arrange a ballasting option for the plane. One of the good things in Stork is that ballast system is nicely integrated to the design.

So my advice is almost opposite to Robert's. I would recommend not first buying a special F5J plan. Electrifying an existing F3J plane is a better and more economical option. Light F3J wing is only about 200g extra and it is more robust and brings planes AUW to the level that nicely suits flying in normal conditions.

F5J is also very tactical. I am now only starting the class, but based on what I have learned, I think equipment are less important than what they are in F3J. So it is 90% pilot and 10% plane
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Old Sep 30, 2013, 05:55 AM
AZ Outback
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Tuomo

BLACK
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Old Sep 30, 2013, 05:56 AM
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Quote:
Originally Posted by Robert Burson View Post
BLACK
???
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Old Sep 30, 2013, 06:00 AM
AZ Outback
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???
Exactly my point..............
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Old Sep 30, 2013, 11:46 AM
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Slovakia
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We have a change in nomenclature now:
Stork 5 is 348cm span = model using smaller Stork 3 centre part and new extended tips.
Stork 6 is 382cm span = model using bigger Stork 4 centre part and new extended tips.
You can have X-tail or V-tail (for powerful and heavy motors and accu setups) If you like. In order to FC-system (Full-compatibility) you can combine its parts.
Stork 6 X Electric (4 min 51 sec)
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Old Sep 30, 2013, 11:49 AM
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Another Stork threads containing a bunch of photos and information:
http://www.rcgroups.com/forums/showt...347253&page=24
http://www.rcgroups.com/forums/showt...1637808&page=6
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Old Sep 30, 2013, 02:30 PM
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Tuomo wrote
Quote:
On the other hand the X1 320 is flying has more area and and much more lifty airfoil. I have no doubts that despite its weight, 2.1kg X1 floats better than my 1.8kg Stork. Tender's light Stork with the long tips is another case, but I cannot yet comment how they improve the performance. Normally increasing span improves glide rather than floating performance.
it does float very well, as I have tested it a lot in calm air. It penetrates upwind much better than my Pulsar 3.2M REF. So it is a very versatile soarer. Thanks for the comments; I really like my Xplorer!
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Last edited by 320pilot; Sep 30, 2013 at 05:49 PM.
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Old Oct 01, 2013, 03:21 PM
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I have flown both the V tail & X Tail Storks and reckon the X Tail is the better model in nearly all departments except windy conditions, as the V Tail is heavier with a more powerful motor. As the X Tail has a long nose, so light set ups are more usual in my case a Peggy Pepper 2208 with 5.2 GB.

I think the X Tail is directionally more stable on the landings as well.
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Old Oct 08, 2013, 11:40 AM
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Slovak Championship F5J 2013 total ranking.
1. MG
2. Bohuslav Majercik
3. Peter Jurkovic
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Last edited by Marko Gala; Oct 08, 2013 at 12:09 PM.
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Old Oct 08, 2013, 12:15 PM
Gnd/Heli Interface Tester
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Well done Marko
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