HeliFreak - Silverexpress01

Trex 250 SE Flybarless: Updated 10/5/10

Posted 08-22-2010 at 09:26 AM by Silverexpress01
Updated 03-05-2013 at 03:15 PM by Silverexpress01

Follow down for updates:

Weight RTF:
Most current state is about 250-260 grams.

Mechanics
- Trex 250 SE Kit (No Electronics - Ebay $139.99 USD)
- KDE CNC Bottom Plate
- Boca Bearings for mainshaft
- Align 205mm carbon blades
- DIY carbon tail rotor push rod
- 15T pinion
- 120T main gear
- Microheli CNC side braces (from MH FBL head kit)
-37mm tail blades on very windy days
-40mm tail blades...

Attached Thumbnails

Click image for larger version

Name: Fig 1_Stuff Needed 2010jun12.jpg
Views: 595
Size: 108.2 KB
ID: 463

Click image for larger version

Name: Fig 2_3M Mounting Tape 2010jun12.jpg
Views: 545
Size: 102.4 KB
ID: 464

Click image for larger version

Name: Fig 3_SK-720 Mounting 2010jun12.jpg
Views: 545
Size: 196.1 KB
ID: 465

Click image for larger version

Name: Fig 4_Mounting of CC ESC.jpg
Views: 551
Size: 201.0 KB
ID: 466

Click image for larger version

Name: Fig 5_cc_bec_wiring_diagram.jpg
Views: 563
Size: 127.4 KB
ID: 467

Click image for larger version

Name: Pic 6 ESC JST connectors.jpg
Views: 529
Size: 187.5 KB
ID: 468

Click image for larger version

Name: Pic_7 Finished wiring of JSTs for ESC 2010jun13.jpg
Views: 548
Size: 184.9 KB
ID: 469

Click image for larger version

Name: Pic_8 Test programming connection 2010jun14.jpg
Views: 610
Size: 233.9 KB
ID: 470

Click image for larger version

Name: Trex 250SE SK-720 Wiring 2010jun05.jpg
Views: 613
Size: 121.4 KB
ID: 471

Click image for larger version

Name: Eagletree rpm sensor.jpg
Views: 620
Size: 206.4 KB
ID: 472

Click image for larger version

Name: Trex 250SE FBL_1 2010oct3.jpeg
Views: 551
Size: 94.2 KB
ID: 547

Click image for larger version

Name: Trex 250SE FBL_2 2010oct3.jpeg
Views: 685
Size: 104.4 KB
ID: 548

Click image for larger version

Name: Trex 250SE FBL_3 2010oct3.jpeg
Views: 610
Size: 110.6 KB
ID: 549

Click image for larger version

Name: Trex 250SE FBL_4 2010oct3.jpeg
Views: 612
Size: 102.1 KB
ID: 550

Click image for larger version

Name: 250_DFC_SK270_Front_Left[1].jpg
Views: 22
Size: 59.3 KB
ID: 1008

Click image for larger version

Name: 250_DFC_SK270_Front_Right[1].jpg
Views: 21
Size: 61.6 KB
ID: 1009

Click image for larger version

Name: 250_DFC_SK270_Rear_Right.jpg[1].jpg
Views: 18
Size: 57.7 KB
ID: 1010

Silverexpress01

Registered Users

Posted in Trex 250/250SE Tips, Trex 250SE (Flybarless)

Views 8112 Comments 4 Silverexpress01 is offline

Notes/Links/Etc on the Trex 250

Posted 06-16-2010 at 11:15 AM by Silverexpress01
Updated 06-24-2011 at 05:23 AM by Silverexpress01 (Just trying something new.)

Settings for Castle Creation's Pheonix 25 amp ESC:
http://www.helifreak.com/showthread.php?t=290375
http://helifreak.com/showthread.php?t=264278
http://helifreak.com/showthread.php?p=2429481
http://www.helifreak.com/showthread.php?t=290679

Fixing a warped main gear:
http://www.helifreak.com/showthread.php?t=294375

Balancing your Heli:
http://www.helifreak.com/showthread.php?t=304630

Gyro's on Real Helis:
http://www.rcuniverse.com/forum/m_79.../tm.htm#790697...

Silverexpress01

Registered Users

Posted in Trex 250/250SE Tips, Trex 250SE (Flybarless)

Views 1341 Comments 2 Silverexpress01 is offline

The Gaui Hurricane FBL

Posted 06-12-2010 at 09:54 AM by Silverexpress01
Updated 05-05-2011 at 09:16 PM by Silverexpress01 (Updated with new faster and stronger servos)

Weight RTF:
302 grams

Electronics:
MKS DS470 cyclic servos @ 5v using 25amp ESC/BEC
JR DS290g tail servo @ 5v using CC 25amp ESC/BEC
Castle Creations 25amp ESC (using Governer set rpm)
Skookum SK-720

Mechanics:
Stock Hurricane 200v2 FES with belt tail rotor
Align 205m Carbon Blades
Gaui Carbon tail rotor push rod
Align Trex 250 landing gear struts

Comments:
Simplicity.
Replaced the slow but...

Attached Thumbnails

Click image for larger version

Name: Gaui 200v2 FES_1 2010oct06.jpg
Views: 266
Size: 128.9 KB
ID: 561

Click image for larger version

Name: Gaui Hurricane 200v2 FES_2 2010oct06.jpg
Views: 216
Size: 119.5 KB
ID: 562

Click image for larger version

Name: Gaui Hurricane 200v2 FES_3 2010oct06.jpg
Views: 222
Size: 139.0 KB
ID: 563

Click image for larger version

Name: Gaui Hurricane 200v2 FES_4 2010oct06.jpg
Views: 227
Size: 135.3 KB
ID: 564

Click image for larger version

Name: Gaui Hurricane 200v2 FES_5 2010oct06.jpg
Views: 228
Size: 150.5 KB
ID: 565

Click image for larger version

Name: Gaui Hurricane 200v2 FES_6 2010oct06.jpg
Views: 238
Size: 168.0 KB
ID: 566

Click image for larger version

Name: Gaui Hurricane 200v2 FES_7 2010oct06.jpg
Views: 216
Size: 139.2 KB
ID: 567

Click image for larger version

Name: Gaui Hurricane 200v2 FES_8 2010oct06.jpg
Views: 262
Size: 178.3 KB
ID: 568

Click image for larger version

Name: Gaui Hurricane 200v2 FES_9 2010oct06.jpg
Views: 217
Size: 114.7 KB
ID: 569

Click image for larger version

Name: 2010-10-07 08.55.17.jpg
Views: 222
Size: 58.5 KB
ID: 576

Silverexpress01

Registered Users

Posted in Gaui Hurricane 200v2

Views 1966 Comments 0 Silverexpress01 is offline

What I've done with Tail Gyros

Posted 06-02-2010 at 03:05 PM by Silverexpress01
Updated 03-12-2011 at 06:55 PM by Silverexpress01 (Misc Info)

Had a few tail gyros on hand after I switched to FBL's. So I installed them into this plane.

http://www.youtube.com/watch?v=4lSU6Erb7Zk" target="_blank">http://www.youtube.com/watch?v=4lSU6Erb7Zk

Note: A gyro won't save you from a crash since all it does is "dampen" unwanted drifting - in an airplane this is represented as unwanted roll, pitch, and yaw. Also, it will not self level the plane. Because it dampens drift, it will in essence make your tiny parkflyer fly like it had more mass - an object that is tough to push...

Silverexpress01

Registered Users

Posted in Uncategorized

Views 809 Comments 0 Silverexpress01 is offline

Turning the Trex 250 SE into a Weight Weenie - For Performance

Posted 03-02-2010 at 09:30 AM by Silverexpress01
Updated 04-23-2011 at 09:03 AM by Silverexpress01 (Changed Topic)

Starting weight as noted above: 344 grams

Removal of Lights and RPM sensor: 314 grams

KDE Plate w/side screws = 6.40 g vs OEM Plastic w/side screws = 3.57 g

Hi-tec HS-5065 metal gears = 2.70g vs Hs-65 carbon = 1.31g

Metal tail slider = 72 g vs Plastic tail slider = 52 g

Extreme Metal and Carbon Swashplate Anti-rotation bracket = 2.30 gr vs
Align plastic = 1.39 g

Silverexpress01

Registered Users

Posted in Uncategorized

Views 662 Comments 0 Silverexpress01 is offline

Archive
< May 2013
Su	Mo	Tu	We	Th	Fr	Sa
21	22	23	24	25	26	27
28	29	30	1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31	1