LANTIAN 90L (BNF, F3+BetaOSD, BLheli_S/Dshot 10A ESC, 25mW AIO) - RC Groups

LANTIAN 90L (BNF, F3+BetaOSD, BLheli_S/Dshot 10A ESC, 25mW AIO)

After the ARFUN 90mm, here is another 90mm with more or less the same advanced electronics, i.e. the LANTIAN 90L.

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LANTIAN 90L (BNF, F3+BetaOSD,, BLheli_S/Dshot 10A ESC, 25mW AIO)

After the ARFUN 90mm, here is another 90mm with more or less the same advanced electronics, i.e. the LANTIAN 90L: http://www.hobbygaga.com/fr-lantian-...er-p274320.htm

In the menu, a F3 FC with betaflight OSD integrated, BLHeli_S/Dshot600 10A 4-in-1 ESC board and strong 1104/7500Kv motors. For the FPV rig, a classic AIO 25mW. Four choice of receivers are proposed: Futaba SFHSS, FrSky D8, FlySky (AFHDS?, AFHDS-2A ?) and Spektrum DSM2. The prop guard is already installed the weight standalone is announced to be 66g. Add close to 30g for the 380mAh 2s LiPo.. Two batteries are given in the bundle. I guess with triblades or biblades, the machine should run in 3S setup. No information about the arm thickness but according to the photo, IMHO, should be 2mm ...

Specification:

  • Diagonal sizet:90mm
  • Flight controller:F3
  • ESC:BLheil-s 10A 4 en 1
  • Motor:1104 7500kv
  • Props:2"
  • Battery:2S -3S
  • FPV:5.8G 25mw
  • Camera uptilt angle:15 degrees
  • Alert:Buzzer and light
  • Protection:Guard for both motor and props
  • OSD:Builtin OSD
  • Firmware:Betaflight
  • Dimension:12014030mm(with the prop guard)
  • Weight:66g(with the prop guard but without the battery)
  • Receiver:DSM2/ FRSKY/ FLYSKY /FUTABA

Package included:

  • 1 * Quadcopter
  • 2 * 2S 380mAh Battery
  • 8 * Props
  • 2 * Velcro strap

Last edited by SeByDocKy; Mar 14, 2017 at 12:53 PM..
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Mar 14, 2017, 12:34 PM
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SeByDocKy's Avatar


Disclaimer (inspired from SP) Product specifications and quality may vary at the manufacturer's discretion, and are beyond my influence. I cannot guarantee you will get a product that performs exactly the same as seen and described in this review. Please, no savage affiliate links! By the way, in contracdiction with some other reviewers, I open a new mini-review thread ONLY when I have the machine in hand ....

INTRODUCTION

The Lantian 90L now also known as XFX90 is direct competitor of the Eachine Aurora 100, the ARfun90, i.e. a compact 90mm brushless FPV racer including a F3+OSD FC, strong 1104/7500Kv brushless motors and 10A BLheli_S/Dshot 600 ESC. The FPV rig is based on 520TVL CMOS camera coupled with a 25mW/40CH 5.8G VTX. To be honest, the caracteristics are very close from the two quoted machines and known to be great little FPV machines. Ideal to bypass the 250g limitation emerging in most countries. Let's discover this bundle. First remark, I probably received a pre-release version. Since the shipping date, the Lantian 90L have been rebranded for XFX90 and some upgrades have been done. So this review can be considered as a lower bound of this value since improvements are now available.

BOX CONTENT



+ 1 x Lantian 90L (with a 2S 380mAh LiPo with MicroLOSI connector)
+ 1 x USB charging cable
+ 4 x Spare 1935 props (2 CW, 2 CCW)
+ 1 x Hexscrewdriver
+ 1 x Battery strap

Notice at least for the first batch, no instruction manual ... and a simple regular black box with a basic sticker.

OVERVIEW

The machine takes an H design ... and both the upper and lower carbon structure got 1.5mm of thickness... the same as for the Aurora 100 BUT, the arms are plain carbon based.. No hole in the middle of arms. IMHO, it should be much more solid. I am not afraid like I was for the Aurora 100 (now some 2mm and 2.5mm lower plate can be found for it)





-Front view

The machine comes with the triblades DYS 2030 pre-installed. The FPV camera is well protected Inside the frame. Notice the prop guard system is exactly the same as for the KingKong GT90. They remove the front plastic connector to reduce the occlusion in the FOV introduced by the prop guard. A linear antenna has been prefered instead of a cloverleaf antenna. Probably a good choice for the durability versus crash/time.



with the battery installed beneath



-Side view

The left sde welcomes the microUSB port of the F3 omnibus FC. No problem to insert the plug. No need to remove the propguard or a prop. In practice, no extra room to install props larger than 2".



The right side shows the receiver and ESC connexions directly soldered on the FC and ESC board respectively. I advised to secure the soldering job by adding some liquid electrical tape, hot glue.



Be sure to well secure the battery's strap if you don't want any contact with props mid-air



-Rear view




The Buzzer is located and well protected on the rear side ....




Notice the presence of a microLOSI connector !!! clearly imcompatible with 3S batteries.... But good news, with last batch of the Lantian 90L/XFX90, they changed the microLOSI connector for a XT30 model... Clearly the perfect choice.

-Upper view

The access to the VTX is possible via the frontal hole but ... something really strange, I can't see button to set the Vfreq/VBand of the VTX.



-Bottom view



With the battery installed



As you can see, compare to the Aurora 100, the arms look much more solid despite being also 1.5mm




Be default the battery strap is not pre-installed ... and you will need to remove first the four scews to install it ... why they didn't pre-install it ?






-Weight




Close to 94g with the batter strapped so close to 10g more heavier than the Eachine Aurora 100.



Motors and props

1104 bruhsless motors with 7500KV announced so ... clearly 3S compatible but the microLOSI connector will limit a lot the 3S juice. Luckely for the XFX90, the replace it for an XT30 able to handle 3S juice without problem.




Pre-installed, the triblades DYS 2030 props...known to introduce some jellos in videos.



The penta 1935 spare props provided represents a slightly better choice but the best trade off in term of thrust, duration and jello effect is without the racerstar quadriblade 2035



LiPo

With the first batch of the Lantian 90L, two 380mAh 2S LiPo are provided with a discharge rate of 30C









Notice now the machine is shipped with 450mAh 2S LiPo with XT30 connectors... Definitively a good news for the 3S comptability, the thrust and the flight duration

Camera module



The 520TVL CMOS camera AIO module is seated into a 3D printed and uptilted mount. The uptilt angle is about 20 degrees. No posibility to ajust this angle.



I was not completly sure but .... unfortunatly I can't see button to select the Vfreq/Vband for the AIO module Amazing !!!! It's locked at the Vfreq = 5765Mhz = A7 : (... The camera broadcasts in PAL format.

EDIT: THere is microp 6position DIP Switch rear almost blocked by wires and the Vreg !!!!You will need a twizzer to set the Vfreq.







Notice just rear the VTX PCB and front the main 4-in-1 ESC board, a small Vreg to feed the AIO with +5V.


Disassembling

Just remove the four M2 screws to access to the main electronic. The FrSky receiver is just installed... not taped or protected from other electronic elements. The bind button can be triggered externally. No real need to remove the top canopy carbon plate.






On the right the SBUS connexion for the FrSky D8 receiver and on the right connexions for the buzzer and lights.. Everything is directly soldered.




The buzzer board



UNBOXING, ANALYSIS, BINDING, CONFIGURATION AND DEMO FLIGHTS

Lantian 90L unboxing analysis binding configuration and demo flight (Courtesy Banggood) (32 min 7 sec)


As you can see I was in shock to not see any Vfreq/Vband buttons ... probably a broken module. So I am confident in the final release, no problem to select one of the 40CH. The machine came with Betaflight 3.1 without any specific tunnings... even the receiver was not correctly cnfigured .... Clearly, I am even not sure they test it in real conditions.... Anyway, I advise immediatly to upgrade to BF 3.1.7 fixiing some bugs and improving generally the stability especially wuth Dshot600 compatible ESC. After this "bad" first impressions....I applied the same settings as for the Aurora 100



First take off ... clearly with the prop guard installed and the microLOSI connector, punchouts are absoluptly not impressive as it can be for the Aurora 100 or the ARFun 90.... Don't be wrong, it's not bad at all and no problem to jump over trees out of the box. With BF 3.1.7 and applied settings, the machine runs superbly ... whaoo so so smooth... we can't even notice the negative impact of the prop guard in the stability. As expected with the DYS 2030 props... some (little) jellos are introduced. Nothing catastrophic by the way. The flight time with these 380mAh are short, around 2min30... max 3min... It's not enough and the guilty is the connector. I did some extra test with a 400mAh battery (of the Eachine FB30) and flight time have been boosted about close to 1min (30% more). The light sensitivity os the FPV camera is correct but far to offer the best performances especially in low contrast condition. No miracle with a 1lux cheap module. THe FPV range with the linear antenna is correct Inside a radius of 50m. After many breakups occur. At least any Flip of Death have been reported and it's great !!!! .... What a shape that the FrSky D8 receiver don't output any RSSI information at least for the OSD part.


Lantian 90L new demo flight (Courtesy Banggood) (10 min 43 sec)



CONCLUSIONS

Partial conclusions can be done my version of Lantian 90L. First of all, I do believe my AIO module was not the correct one ... and the non-possibility to select the Vfreq/Vband will be obviously solved in the final batch. (There is a micro DIP switch !!!! so no problem to select the Vfreq) .The introduction of the XT30 connector associated with stronger 450mAh will not only boost punchouts but also flight time. With my microLOSI version, results are already almost acceptable. Anyway, and it's the more important.the main electronic elements are pretty good. A strong F3 omnibus including an OSD, strong 1104/7500Kv 3S compatible, 10A BLheli_S/Dshot 600 4-in-1 themselve also 3S compatible represent the main pro points of the Lantian 90L.


PROS

+ Great 90mm racer
+ F3 Omnibus w/ OSD
+ 10A BLheli_S/Dshot600 ESC
+ 3S compatible machine
+ Prop guard
+ More durable than the Eachine Aurora 100
+ Spare battery

CONS

- MicroLOSI connector (not recommended from 3S LiPo) solved with last batch (XT30 connector and batteries)
- Machine not configured in betaflight (come with default settings)
- 3min of flight time
- No Vfreq/Vband selection button ????? There is a 6 position DIP switch hidden rear by the Vreg !!!
- No RSSI for the FrSKy D8 receiver
- Battery strap not pre-installed


This quadcopter have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thank them for this attitude.
You can find it actually for 135USD at https://www.banggood.com/LANTIAN-90L-90mm-Brushless-FPV-Racing-Drone-w-F3-5_8G-25mW-Beheli_S-10A-DSHOT-ESC-OSD-Buzzer-2-3S-p-1134570.html
Last edited by SeByDocKy; May 03, 2017 at 11:03 AM.
Mar 14, 2017, 04:19 PM
Registered User
Hi SeByDocKy, I can't wait to see you review this interesting indoor-outdoor micro !

I get my quads delivered to my sister in Miami, and I was wondering if anyone has ever seen the Lantian 90L available on any other site than http://www.hobbygaga.com? Thanks.
Last edited by dalturbo; Mar 14, 2017 at 06:10 PM.
Mar 14, 2017, 04:54 PM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by dalturbo
Hi SeByDocKy, I can't wait to see you review this interesting indoor-outdoor micro !

I get my quads delivered to my sister in Miami, and I was wondering if anyone has ever seen the Lantian 90L available on any other site than http://www.hobbygaga.com? Thanks.

No idea for the availability but it will appear soon almost everywhere ....
Latest blog entry: Youbi XV-130 130MM FPV Racer
Mar 14, 2017, 05:44 PM
Time For Me To Fly!
fastmax's Avatar
Looks interesting, and I'm guessing 2mm thickness from the pics too. I hope so anyway.
Mar 14, 2017, 06:41 PM
Quad Erat Demonstrandum
scousethief's Avatar
Very nice , I would however prefer if companies started using the 2 piece micro can and vtx and place the vtx at the rear, it would just move the antenna away from any battery accidents and give the antenna a little more clearance form the carbon.
Mar 15, 2017, 12:54 AM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by scousethief
Very nice , I would however prefer if companies started using the 2 piece micro can and vtx and place the vtx at the rear, it would just move the antenna away from any battery accidents and give the antenna a little more clearance form the carbon.

Yes ... but in another hand, it should be not so hard to split in two the AIO cam .....
Latest blog entry: Youbi XV-130 130MM FPV Racer
Mar 15, 2017, 02:42 AM
tHe n00b on YouTube
Wow, these micros keep popping out new once almost every 2-3 days.
Mar 15, 2017, 07:08 AM
Quad Erat Demonstrandum
scousethief's Avatar
Quote:
Originally Posted by SeByDocKy
Yes ... but in another hand, it should be not so hard to split in two the AIO cam .....
Of course , it is only a very small minor point and would be no problem for any of us.

Racerstar also have some small +/- 2 inch props which may serve as spares.

(Links are clean)
http://www.banggood.com/10-Pairs-Rac...p-1129109.html

http://www.banggood.com/10-Pairs-Rac...p-1127196.html
Mar 16, 2017, 09:38 PM
KE Spins make me dizzy.
and bookmarked.

Because who doesn't love a quad with five blade props?
Mar 17, 2017, 01:47 AM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by Sabin
and bookmarked.

Because who doesn't love a quad with five blade props?

Yes penta won't be really friendly for ESC in 3S setup ..... but I agree it looks good
Latest blog entry: Youbi XV-130 130MM FPV Racer
Mar 17, 2017, 02:02 AM
3s too
Mar 17, 2017, 02:36 PM
Whats is the connecter all about?

Thats for 1s!
Mar 17, 2017, 06:45 PM
KE Spins make me dizzy.
Indeed it is, and that's the first thing that should be replaced - either with XT30's, EC3's or something else that can handle the amp draw.


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