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Mar 01, 2005, 08:03 PM
AZ Outback
Robert Burson's Avatar
Thread OP

F5J eXtreme March 19/20th Sign-Up March 18th


F5J USA eXtreme Rules:

1. Any electric sailplane can enter, to fly the following rounds, three 10-minute flights. One point per second of flight time, one point deducted for each second over the 10minute-flight time. Maximum points possible 600. Round to the closest second.

2. The BIG ONE, motor run time is unlimited but subtracted from the flight time. Example, 600 flight pts - 19 motor run pts = 581 total round pts.

Rules 1 and 2 are restated below:

The pilot will select three 10 minute flying windows, any motor run during this period of time will be subtracted at a rate of a point per second. Flight time will be one point per second (in 10 minutes 600pts minus motor run time points). Flight time exceeding the window will be one point for each second subtracted from flight time. (This rule now reads closer to F3J rules from FAI)

3. Landing points to be measured from the center of the landing circle, to the closest part of the plane. For each meter from the point subtract 3 points. See attached file for table.

4. Motor handicap: brushless 95%, brushed Cobalt 75%, Ferrite 45%, and Speed400 30%. Actual motor run rounded to the closest second. Then multiplied by the motor percentage. Round this calculated value to the closest 1/10th of a second.

5. A 48hr window will be provided to all pilots, in that 48hr window, they shall select a single dawn to dusk flight window.

6. Any type of battery cell is legal.

7. Temperature Factor to be added to total flight score. See the attachment for the temperature table.

Timers still need two stopwatches, this was easier then I thought it would be. Work out a signal with the pilot, if he is going to restart the motor. (I.e. "")

This is the simplest way of scoring I have been able to come up with.

Flight time - closest second
Motor run - closest second
Calculated motor run - closest 1/10th of a second
Landing points - see table Rule #3

To compete: Please list your plane, gearbox, prop, cells and type, weight, and any other interesting facts, pictures are always welcome, to this thread.If someone else, not on the Web would like to fly with you please list him or her.

To all who enter,

The Best

Last edited by Robert Burson; Mar 01, 2005 at 08:09 PM.
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Mar 01, 2005, 10:37 PM
Registered User

Team Oklahoma

I'm in flying my usual...Xenath II,B509S 6.7:1, 18x10, 15 cell CP1700's/ GP2200's, AUW ~95ounces, 14.5 ounces/foot squared, 113" wing span, SD 7037. Thanks for your effort, Robert.

Moore, OK
Mar 03, 2005, 12:26 AM
Tragic case
davidleitch's Avatar
I'll be in with either the Organic or the Stork. Excellent timing for this contest just before our major 7 cell contest at Easter.

Some photos to follow.
Mar 05, 2005, 01:01 PM
Registered User
ohmite's Avatar
I'm in again. Omega 1.8, 8 Kan1050, 11x8 prop, and a Rocket Sp400 to see if the handicap will improve my scores any. Let's hope Spring comes soon, 8 inches of snow on the ground and a high so far of 24 degF today.
Mar 06, 2005, 07:55 AM
Registered User
pocket rocket's Avatar
we'll be there, me and my Serenity

Art Hobby Serenity 2.5m, Hacker B40 8(or 7)L, 4.4:1 g/box, 12xGP2200, 18x11, about 72oz


flight test report:-
Mar 06, 2005, 09:57 AM
AZ Outback
Robert Burson's Avatar
Thread OP
Gooday Phillip,

Finally a new day has dawned, no more fish stories, real measurement of motor and plane flight performance. I have a feeling you are on the edge of a new era of reporting real numbers for competition events. Thank you for bringing it to this event. If it were not a matter of money, I would like to furnish everyone in this event with a recorder for their flights. I am planning on using a Alt2 or Lolo2 to record my flights for the next event.

The Best
Mar 06, 2005, 11:12 AM
tender's Avatar

eXtreme - March round

We are in >>>

Palo with
SENSOR-plus (2000 mm XL wings with ailerons), total weight of the model 676 g, 305/165 mm propeller, 3:1 gear, SPEED 400/6V motor, JETI-140 ESC, JETI-Rex7-MPD receiver, 3 x micro 9g servos, 8 x GP1100 and 8 x UNITECH1100.

Karol with
SENSOR-plus (2000 mm XL wings with ailerons), total weight of the model 685 g, 315/200 mm propeller, 3,5:1 gear, SPEED 400/6V motor, JETI-140 ESC, JETI-Rex5-receiver, 3 x micro 9g servos, 8 x UNITECH1100.

Both of them with Alti02 for all flights.


Palo & Karol
Mar 07, 2005, 09:13 AM
Registered User
mihah's Avatar
Let's have some fun!

SENSOR, 4.5:1 Cosmotech, 400 6 V, 13x11 Aeronaut, 8 GP1100 on Schulze slim 40be controller, 3 x micro 9g servos, Schulze Alpha 440 receiver.

Miha from Slovenia
Mar 08, 2005, 11:06 AM
Registered User
luigidon's Avatar
I am in tooo....

Allegro modified, 6:1, 400 4,8V, 12x8 modified, kontronik 1000, 2x9g micros, schulze 435, 2 KONION or. 7xGP1100

Matjaz from Slovenia
Mar 14, 2005, 01:36 AM
joesoar's Avatar
My AVA-ESF and me are in.
B50 6.7:1, 12cells, 18.5x12


Mar 15, 2005, 01:57 PM
SEFF Contest Director
rcjunkie's Avatar
I'm in with my "Rictro Rocket", Endo 4.4:1 gearbox, 14 X 9.5 prop, 8 cell 1950FAUP, 100" WS/spoiler, AUW 52 oz.

Ernie S.
Mar 15, 2005, 04:27 PM
Moths do not fly inverted
LJH's Avatar
Hey guys,
Just wanted to chime in here, Total newb to this F5J stuff but what better way to get started then getting to compete without anyone watching . I am finishing up my Sky Sergio and hope to have her ready for the weekend.

Set-up is as follows:

2.2M Sky Sergio
Rocket 400 w/4.5:1 Cosmotech box
12X7.5 Carbon prop
3S E-Tech 1200HP

So far looks like it is going to be OK weather wise.

Jim in Greenwich CT. USA
Mar 16, 2005, 06:08 AM
Registered User
samo3d's Avatar
Count me in too.

No name glider (span arround 200cm with flap/spoiler), 3.8:1 MPJet gearbox, sp400 6V, 11x10 Aeronaut, Schulze 20A controler, 2x8g + 1x6g servos , Webra 8DS receiver, 8xkan1050, weight 590 g (hope there will be no wind )

Samo from Slovenia
Mar 16, 2005, 06:32 AM
Registered User
I'm in with my MC-5. 99"ws, 56 oz, B40LMR, 9-cp1700.
Mar 16, 2005, 08:50 AM
Registered User
jojoen's Avatar
I was stupid enough to use my controller in a motor modell with Lipo batteries... And then charge the batteries on site in the model. I knew the cells was fishy but never thought it would be ashes within one minute... Maybe the controller is ok (it was wrapepd in capton tape). If so I am in with my AVA and B50 6S on 10 cells.

Word of the day: Always charge outside the model and never in the car, in the house or whatever. That the cells explode is ok but not when you loose values 5-100 times the value of the cells. And if you are not sure about the cells just buy new ones...

Regards Jojo

Edited 19:20: Just checked the controller. Its fried... A new one that takes 130A is not cheap... So I will probably be consentrating on pur sailplanes for a while

Last edited by jojoen; Mar 16, 2005 at 01:21 PM. Reason: New information

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