STRIX Goblin - High Performance FPV Wing - RC Groups
Thread Tools
Apr 05, 2017, 10:02 AM
Registered User
smoothvirus's Avatar
New Product

STRIX Goblin - High Performance FPV Wing


https://www.readymaderc.com/store/in...th=112_935_956

Quote:
Introducing the STRIX Goblin! If high precision efficient flying is your goal, the Goblin is the plane of your dreams. Every aspect of this air frame was designed with aerodynamics in mind which gives it unheard of energy retention and glide ratio. Good handling and strength were also not overlooked with the excellent stall characteristics and blow molded fuselage. Add the STRIX Goblin to your hangar or car without taking up too much real estate at less than 40" of wing span.

Features

Extremely aerodynamic and efficient design is capable of endurance flights at low amp draw.
Blow molded fuselage has plenty of strength and room for equipment.
High density EPO foam and square CF spars give rigidity for precision flying
Easy to use canopy latch make changing batteries easier than ever!
Compact design with removable, forward swept wings.
Specifications

Wingspan: 39" (1000mm)
Fuselage length: 21" (540mm)
Motor: STRIX Cobra 2217 2300kv
​Propeller: 6x4 APC (Recommended)
Battery: 4s 3300mAh (Recommended)
ESC: STRIX Cobra 60A
Servos: Digital, Metal Gear 9g
PNP $250
https://www.readymaderc.com/store/in...oducts_id=6670

Kit $160
https://www.readymaderc.com/store/in...oducts_id=6671

Balsa Elevon Upgrade Kit
https://www.readymaderc.com/store/in...oducts_id=6895

STRIX Goblin and Nano Goblin TDS Bounty
Quote:
Break the Time, Distance, or Speed record with the Goblin or Nano Goblin and win!
The STRIX Goblin and STRIX Nano Goblin planes are currently the most efficient and best flying planes available for the FPV and RC market. We've created this page and bounty so you can show others just how great they are. From now until February 1, 2018, you can make as many submissions as you'd like for each plane. If you win, not only will you have bragging rights for the longest time, greatest distance, or highest speed, but you'll also win a $100 RMRC Gift Certificate! After February 1, 2018 you can still submit your videos to take the top of the leaderboard. Every new person that breaks a record after February 1, 2018 will receive a $50 RMRC Gift Certificate.
http://www.readymaderc.com/store/ind...age=page&id=32

STRIX Goblin (1 min 55 sec)


The STRIX Goblin Working Its Magic (4 min 5 sec)


Video Reviews

100+mph Flying Wing - Strix Goblin | FLITE TEST (8 min 29 sec)


ReadyMadeRC Strix Goblin - RCGroups FPV Review (12 min 7 sec)


Reference:

How to Build the Goblin (12 min 34 sec)


Eagletree Vector settings:
https://www.rcgroups.com/forums/show...&postcount=640

Goblin vs. Mini Drak
https://www.rcgroups.com/forums/show...postcount=1192

Runcam HD2 Mounting Shelf
https://www.thingiverse.com/thing:2457165

3D printed parts
https://www.rcgroups.com/forums/show...postcount=1806

ValenPasto build video
https://www.rcgroups.com/forums/show...postcount=1813

More 3D printed parts
https://www.rcgroups.com/forums/show...postcount=2404

3D printed pitot tube holder
https://www.rcgroups.com/forums/show...postcount=2433
Last edited by smoothvirus; May 15, 2018 at 02:04 PM.
Sign up now
to remove ads between posts
Apr 05, 2017, 10:16 AM
Registered User
smoothvirus's Avatar
Previously classified prototype photos

















Apr 05, 2017, 10:53 AM
Registered User
Daemon's Avatar
For whatever it's worth, it's a Plank, not a Wing. Planks are defined by having a square or swept forward planform.
Generally "wing" refers to or at least implies a swept wing aircraft which are a dime a dozen.
For those of you who've asked me about the giant Graugans Plank, the Goblin is designed by the same person.
It's half the size, but faster, and more efficient.

I can pretty much guarantee that there is not a more efficient *fast* FPV plane on the market right now.
It is extremely slippery so its efficiency depends on keeping external drag to a minimum, but even with
To give some raw data points
Sans all FPV gear and external antennas it'll do about 135mph in level flight.
Add small FPV cam and 5.8Ghz antenna externally.. Top speed drops to about 125mph
Runcam2, VTX and 1.3ghz antenna, about 110mph.
Of course it'll go faster in a dive.
At my altitude using stock motor/prop/ESC it pulls about 25-28A at full throttle at full speed.

As for long range efficiency. Here's some numbers
From flight summary.
OSD upper left center.. 23.6mi (33km) round trip.
OSD claims 2340mAh used. Charger put back in 2368mAh.
Total flight time a little less than OSD power on total, at 31:15 for average speed of 45_mph.
Total efficiency for flight at 4S. 62.3 mAh/km

Notice 45mph average speed. That was pulling about 5A. It'll fly on less than 4.

I did the same 22+mile flight a few days later pulling a steady 10A (about 150W)
averaged 72mph, used 3200mAh, for efficiency of about 150mAh/km.

Videos coming.
Last edited by Daemon; Apr 05, 2017 at 12:16 PM. Reason: typos
Apr 05, 2017, 11:14 AM
USA: LakeGeorge, New York
Looks like SVEDE design (or he made one for fun)

Alulah backwards
Apr 05, 2017, 11:15 AM

More pictures! For your pleasure..


Name: 1.jpg
Views: 468
Size: 53.7 KB
Description:
Name: 2.jpg
Views: 301
Size: 327.0 KB
Description:
Name: cover.jpg
Views: 341
Size: 365.2 KB
Description:
Name: unnamed.jpg
Views: 411
Size: 133.0 KB
Description:
Name: moab 1.jpg
Views: 294
Size: 133.0 KB
Description:
Name: unnamed (4).jpg
Views: 301
Size: 261.3 KB
Description:
Name: 9.jpg
Views: 375
Size: 149.1 KB
Description:
Apr 05, 2017, 11:16 AM
Registered User
DVR footage from my first FPV flight. It's fast and can climb up 60 degree pitches with ease.
Goblin Moab SD (15 min 7 sec)


HD footage, same flight:
GoblinHDMoab (13 min 42 sec)


I'll be releasing some 3D printed aerodynamic camera mounts in the near future.
Apr 05, 2017, 11:17 AM
Registered User
SystemsGuy's Avatar
Looks sexy - you mind posting up some internal shots with the battery mounted?

Quote:
Originally Posted by Daemon
For whatever it's worth, it's a Plank, not a Wing. Planks are defined by having a square or swept forward planform.
Generally "wing" refers to or at least implies a swept wing aircraft which are a dime a dozen.
For those of you who've asked me about the giant Graugans Plank, the Goblin is designed by the same person.
It's half the size, but faster, and more efficient.

I can pretty much guarantee that there is not a more efficient *fast* FPV plane on the market right now.
It is extremely slippery so its efficiency depends on keeping external drag to a minimum, but even with
To give some raw data points
Sans all FPV gear and external antennas it'll do about 135mph in level flight.
Add small FPV cam and 5.8Ghz antenna externally.. Top speed drops to about 125mph
Runcam2, VTX and 1.3ghz antenna, about 110mph.
Of course it'll go faster in a dive.
At my altitude using stock motor/prop/ESC it pulls about 25-28A.

As for long range efficiency. Here's some numbers
From flight summary.
OSD upper left center.. 23.6mi (33km) round trip.
OSD claims 2340mAh used. Charger put back in 2368mAh.
Total flight time a little less than OSD power on total, at 31:15 for average speed of 45_mph.
Total efficiency for flight at 4S. 62.3 mAh/km

Notice 45mph average speed. That was pulling about 5A. It'll fly on less than 4.

I did the same 22+mph flight a few days later pulling a steady 10A (about 150W)
averaged 72mph, used 3200mAh, for efficiency of about 150mAh/km.

Videos coming.
Latest blog entry: FrSky Long Range!
Apr 05, 2017, 11:24 AM
-NEFPV-
Delete
Last edited by slowjett; Apr 05, 2017 at 11:58 AM.
Apr 05, 2017, 11:32 AM
GPS and UHF embedded into the wings

Name: mine.jpg
Views: 927
Size: 213.7 KB
Description:
Apr 05, 2017, 11:37 AM
McSkies's Avatar
Didn't take long for you guys to start a thread! I believe RCG is going to do announcement on this after Toledo (public Goblin unveiling). Maybe they can merge the threads after that.
Apr 05, 2017, 11:53 AM
Registered User
Oh that's pretty. How do blow mold fuselages hold up to abuse, both landing and crashing? Also the wings look very thin. Is there space to embed a vtx farther out with a linear dipole?

Also what kind of auw weight are you hitting?
Apr 05, 2017, 11:55 AM
Bungee launch for those of you who are planning on breaking the sound barrier
Goblin Bungee (0 min 5 sec)
Apr 05, 2017, 11:57 AM
-NEFPV-
The Goblin in action.

Strix Goblin - Fast and Low (3 min 28 sec)



Here it is with a 5ah 4s hard pack and go pro session. I can better shot later. She's pretty fast.






Last edited by slowjett; Apr 07, 2017 at 12:05 AM.
Apr 05, 2017, 12:01 PM
Registered User
SystemsGuy's Avatar
Quote:
Originally Posted by zanderman111
Bungee launch for those of you who are planning on breaking the sound barrier
Nice - it's just that I'm attached to my fingers and I'd like to keep it that way!
Latest blog entry: FrSky Long Range!
Apr 05, 2017, 12:02 PM
Team Futaba / Team RMRC
Sukhoikid's Avatar
Subscribe! I will say I have been enjoying mine! My launcher though is not for sale


Quick Reply
Message:

Thread Tools