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Jun 03, 2007, 05:46 AM
AZ Outback
Robert Burson's Avatar
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X5J eXtreme June 16th/17th Signup

X5J eXtreme 2007 and Event dates.

News: This summer I will be working with some new ideas for a seperate sailplane class without any handicap, using a set of parameters for maximum power,maximum wingspan and minmum weight. This class would run seperate from the X5J event. While I have a good set of the numbers in my head, I would like to use the rules in a set of three different planes to see the actual results. I will try to post up the planes and the results over the summer.

Welcome, back for the fourth year.

Please read all rules, new is the order of the rules from 2006, added is the small out runner class of motors, and movement of brushed car motors to the cobalt class of motors..

X5J eXtreme Rules:

1. Any electric powered sailplane can enter this contest.

2. There will be three 10minute flights. One point per second of flight time is scored and, one point deducted for each second over the 10minute-flight time. Maximum points possible 600. Round to the closest second for your flight time.

Example 9minutes 50seconds = 540pts + 50pts = 590pts
10minutes 4seconds = 600pts Ė4pts = 596pts

3. Motor run time is unlimited but subtracted from the flight time.

Example, 600 flight pts - 19 motor run pts = 581 total round pts.

4. 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 from 30pts . See attached file for table.

5. Motor handicap: brushless 95%, brushed Cobalt and brushed car motors 75%, Ferrite 45%, and outrunners with a 28mm or less bell diameter and 17mm length 68%, 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.

Example Cobalt motor time 34 .6seconds = 35seconds X 0.75 = 26.25seconds = 26.3 seconds

6. You may restart your, motor as many times, as needed, but on the second motor start, you may not add landing points. A second way of stating this rule. If you start your motor after launch run of the motor, you will not receive any landing points.

7. Your flight is limited, a single dawn to dusk flight day of your choosing, during a 48 hour period.

8. Any type of battery cell is legal.

9. 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, on or by June 15th.

To all who enter,

The Best


Please add these dates to your calander.

The following are the dates for X5J eXtreme 2007:

July 14th and 15th
August 25th and 26th

September 7th, 8th and 9th Muncie, Indiana, USA
Second X5J World Competition 2007, events at the National field.
X5J Speed400, X5J eXtreme, and X5J Unlimited

October 13th and 14th
Last edited by Robert Burson; Jun 16, 2007 at 06:52 AM.
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Jun 03, 2007, 06:51 AM
turn, turn, turn.
I'm in again.

This time, my Hacker C50 8s2p powered S14.
Opt 77 esc, RFM 16x17, and JRs' 9 ch. rx. w/ 1250 4 cell nihm.
I'll use my 8103 w/ crow on throttle stick, and throttle on spring loaded switch.

If we get a good day here, I'll be sure and get landing points this time.
Jun 03, 2007, 07:54 AM
Hopefully the wind cooperates and I'll fly this time!

Art Hobby Castor, Multiplex BL-480/4G, 4.4:1, 12.5x9, GP1100 10 Cell NiMH

Jun 03, 2007, 09:57 AM
what makes that thing go
ploof's Avatar
Hey there, guys

I put in with my big ship.

Kit Pike Superior Electro with carbon 68 wing

Motor Neu 1110 2Y

ESC Jeti Spin 44

Prop RF 17x6.5

Battery Thunder Power 2070 extreme 4cell lipo

AUW 80 oz.

It's a realy slow climb, but the float is great, some day when I win the Lottery I'll get a bigger power system.

Last edited by ploof; Jun 03, 2007 at 12:48 PM.
Jun 04, 2007, 02:01 AM
Slope and thermal
I'll be in if the winter weather cooperates

- Elegant 700
- 2.7 metre wing span, 1.6 Kg
-Axi 2820-10 motor
-TP4000 prolite 3S2P lipo
-Jeti 70 amp ESC.
-Graupner 12x7 prop.

Jun 04, 2007, 04:12 AM
Registered User
ohmite's Avatar
I'm in again with my Art Hobby HiAspect 3.1E. With a Hacker B40/9L+4.4:1GB+15x10+3S TP3300 Extremes. Let's hope for good weather.
Jun 04, 2007, 11:18 AM
The Mr. Rogers of RC soaring
rdwoebke's Avatar
Count me in.

Allegro Lite speed 400 4:1 gb 2S 1320 11x8 folder.

Edit. Might instead fly my Astro 035 powered Paragon or CDROM powered mini glider.

Last edited by rdwoebke; Jun 12, 2007 at 10:47 AM.
Jun 04, 2007, 02:23 PM
Registered User
nunz15's Avatar
In with Poly Pulsar if I'm not at work. Neu 1105/2Y, 2S2200, 14x8. Robert, have you thought about adding a day to the contest? Either Friday or Monday?
Jun 04, 2007, 07:06 PM
Registered User
Andy W's Avatar
I'll try not to miss another opportunity to land in a tree..

I'm hoping to fly my electrified HLG..
Jun 05, 2007, 11:37 AM
Jay Garcia
JayGarcia's Avatar
Andy, can you post a picture of your electrified HLG. Just curious to see what you have created. I am busy learning DLG fabrication techniques and making good progress. Tooling up for composite fabrication has taken a bit but I am pretty much set up now. Send out the specs for your glider (Model, weight, power system, etc).

Jun 05, 2007, 10:11 PM
Registered User
Andy W's Avatar
It's my Gambler, but I modified it. As an HLG, 48"/250 sq."/<7 oz (3.7-4 oz/sq') - I added less than an oz with the conversion..
Jun 07, 2007, 08:38 PM
Registered User
Iím back after a long trip (blissfully without computer or cell phone access), and ready to fly again in the X5J postal. Iíll once again probably fly one of my mid-sized e-gliders:

Calmer conditions:
Art Hobby Andromeda 2M (SD 7080 wing)
Motor/Prop: Mega 16/15/3 direct drive to 9x5 prop.
Battery pack: 7-cell Elite 1500 2/3A
AUW: 26 oz

Windy conditions:
Art Hobby Andromeda 1.9 M (HN 1033 wing)
Motor/Prop: Mega 16/15/7 direct drive to 9x5 prop.
Battery pack: 10-cell Elite 1500 2/3A
AUW: 32 oz

Jun 10, 2007, 02:39 PM
I also have a fellow club member (JW) who will be flying with me. His setup is:

Modified Spirit Elite, Multiplex BL400-8D, 4.4:1. Aeronaut 12x8F, 3S 1320mAh LiPo.

Jun 10, 2007, 08:39 PM
Registered User
John Lueke's Avatar
I will give it a shot on 17th with my "vintage" Ultra Mk IV. Can't fly on 16th because of CD duties, so that will probably be the perfect day.

Cermark O5 cobalt with 3:1 GB driving 14x9.5 folder.
10 cell GP2000 NiMh
AUW about 45 oz

Jun 11, 2007, 04:17 AM
Registered User
Hi there, I'll give it an try again, with my 2 meters Aega, hopefully there will a new motor this week in my mailbox...

And some better wheater in Stockholm, it's looking a bit dark right now, but there are many days left...

Leif Klasson

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