Thread Tools
Dec 28, 2015, 03:33 PM
Registered User
SeByDocKy's Avatar
Thread OP
Mini-Review

JJRC H26D, a large brushed model with 2-axis gimbal (under construction)




INTRODUCTION

After the excellent YiZhan X6 "tarantula" rebranded by JJRC as the H16, here is a new large brushed model now including a mini-gimbal + camera module: the JJRC H26D. Don't dream too much, no stabilization here with the gimbal but "just" the way to control pan/tilt via the radio. The H26D have a 3mpx camera with lens having a 120 degrees of Field of view (FOV)


BOX CONTENT

+ 1 x JJRC H26D CX-10C (with a 2S 1200mAh LiPo with mini-tamiya connector)
+ 1 x Transmitter (using 4xAA batteries not included)
+ 1 x USB charging cable
+ 4 x Prop guards
+ 2 x Landing gear
+ 2 x Spare props (1 CW, 1 CCW)
+ 1 x Screwdriver
+ 1 x Instruction manual (English)

OVERVIEW

The general design of the H26 is really nice mimic last AP models. The size of this machine is even more bigger than the tarantula. The pastic quality is good, enough to absorb most cases of crash. The two landing legs are huge.


-Front view

The ground clearance of the the H26D is important, more than 10cm large enough to carry the 2-axis gimbal



-Side view



-Rear view



-Upper view



Nice point: since you can carry the gimbal, the battery compartement is now installed on top.



The 1200mAh Lipo occupies all the battery bay.



I strongly advise to tight the screw when the battery is inserted to not loose the door mid-flight..

-Bottom view





A tiny power switch can be found and three different port. Two to control the roll & tilt of the gimbal, the last one (in red) to power the camera module



In the middle of each arm, a 1.25mm miniJST connector to connect the propguard including LEDs.



-Weight

Each of the two landing foot weights individually around 30g



and 6.7g for prop guards





Motors

Motors are connector via 1.25mm miniJST connector





Unfortunatly, you will need to fully disassemble your machine to change a motor. Good news, you can remove/swap a motor without disassembing everything by 1) removing the props, 2) removing the shaft then 3) the two screws holding the motors are accessible. More no soldering job to do.

Bad news too, no ball-bearing, but some bronze bushings (3mmx6mmx2mm) MR63



Other bad news, the pinion is in brass metal while the main gear in nylon. The bass pinion durability will be reduced







Some compatible models can be found here:

Ball bearings (IDxODxW) 3mmx6mmx2mm replacement

http://www.banggood.com/Wholesale-MJX-F47-F647-RC-Helicopter-Spare-Parts-Bearing-p-57426.html



Some heatsink are installed on the N50 brushed motors. Not sure it will be very efficient vs time.



Some N50 brushed motors are installed even of on top it's written N40



Exactly the same model than V666/Tarantula





LiPo

A 2S 1200mAh LiPo battery with a mini-tamiya connector... strange choice not often used (probably to sell more spare batteries). No discharge rate mentioned









Camera module

The camera is announced to be a 3mpx model filming in [email protected]



The lens have a field of view of 120degres, a good choice IMHO, not too large (to be affected with fish-eye effect) and not too narrow (as usual)



The gimbal includes 2 coresless motors



Disassembling

After a very long unscrewing session, you can easily split in two parts the body





Classic chips are here, a MPU6050C for a 6-axis stabilizaton and a XN297 Beken 2425 as RFchip. Unfortunatly, I was not able to bind the H26 with all protocol XN297 based implemented in deviationTX.
EDIT 01/13/16. DeviationTX hacking is on the way for the H26D.



The 2.4G antenna is almost installed vertically inside the canopy, a good news if you are looking for long distance control in the horizontal plan.



Transmitter

A classic JJRC chassis but now including a small LCD display. It's always a good point. Both shoulder bumpers have in practice two functions if pressed backward or upward. The left one is associated with photo (back) or camera triggering(front). The right shoulder button when pressed back select one of the three speed mode. For the two first, "demo1" is written on the LCD, while "demo2" only for the expert. All rates (ruddler, aileron, elevator) are propotional to the selected modes. The novolty is the gimbal control via the four left stick trim buttons.
Finally, two "pot" buttons, in practice to be clicked on them to select a kind of altitulde hold for the left and the headless/ one key return for the right one (if long pressed). To calibrate gyros, you need: 1) to be in expert mode (demo2) and 2) to push both stick in lower-left position





The 2.4G antenna is shielded



and a PA+LNA stage is present to offer the advertised 300-400m of control range.



FIRST USAGE

JJRC H26D first demo flight (Courtesy Banggood) (12 min 10 sec)


As you can see and hear, the H26 is very Noisy .... like the V262/V333/V666 and tarantula.... No miracle since the same N50 motors are here. The nice surprize is the remaining sporty attitudes of the machine despite the extra weight associated with the mini-gimbal cam combo. A good point. The H26 is really easy to fly with but need a wide open space. In expert mode, it's a rocket (comparatively for a brushed model but last faster than a JJRC X1). The stability is here .... a very good to shoot videos. Another good news, is the stability in videos, almost jellofree, results far superior of the original tarantula's videos. With some little modding, I am sure it can be completly jellofree. The camera quality is correct while not being amazing. I regret a little bit the average light sensitivity. In practice, the camera control possibility without any real-time feedback is very limited to some proximity flights. I regret that the radio don't offer at least a sound or visual indication of the central gimbal position. In this case, we would need just to count how many click to apply to have a given angle. An interesting mod, would consist to remove the builtin camera to install a better mode or (and if the H26D is not first derived with a pure 5.8G solution) to install an FPV camera.

Another video with higher altitudes

JJRC H26D new flight session (Courtesy Banggood) (6 min 26 sec)


CONCLUSIONS

With the avalanche of JJRC models, it's a little bit a lotery, but I have to say that the JJRC X1 and this H26D are two good models. Of course, it's never perfect but promising. The general design of the H26D is really nice and despite it's a little overweight it remains a sporty while offering (almost) jellofree videos. For less than 100USD, the H26 represents a serious competitor to the syma X8C (not yet for the X8G) and the MJX X101. If you are looking for a cheap video plateform to practice before to buy a real brushless plateform, the H26D is really interesting. As for all models equiped with N50 motors, I strongly advise to stock at least one CW and one CCW motor. I deeply hope/dream than JJRC will propose the pure 5.8G FPV version with the same 120deg lens .... Let's hope... coz it could win the SeByAward Q4 2015.

UNBOXING

JJRC H26D unboxing and quick analysis (Courtesy Banggood) (15 min 7 sec)


PROS

+ Great flyer, sporty as the tarantula/JJRC H16
+ Beautiful design
+ Good control range
+ Powerswitch
+ Headsink for N50 motors
+ Easy motor maintenance
+ Almost Jellofree plateform
+ 120 degrees of FOV
+ Light 2-axis gimbal
+ Potentially a super FPV plateform
+ Around 8-9min of flight time
+ Less than 100USD

CONS

- Noisy machine
- N50 brushed motor with a ATBF of 20-30 flights (in average)
- No ball-bearings (MR63)
- No nylon pinion (brass pinion in contact w/ nylon gear)
- Unsual lead connectors
- No microSD card provided
- Gimbal control almost without interest without video feedback
- Light sensitivity of the camera can be better
- YaP


This quadcopter have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thanks them for this attitude.
You can find it actually for 96USD at http://www.banggood.com/JJRC-H26D-5_8G-FPV-With-3MP-Wide-Angle-HD-Camera-One-Key-Return-RC-Quadcopter-RTF-p-1013427.html
Last edited by SeByDocKy; Jan 13, 2016 at 03:41 AM.
Sign up now
to remove ads between posts
Dec 28, 2015, 03:34 PM
Registered User
SeByDocKy's Avatar
Thread OP
Reserved1
Dec 29, 2015, 08:06 AM
Registered User
SeByDocKy's Avatar
Thread OP
Added more text and photos ....
Dec 29, 2015, 01:08 PM
Registered User
Looks like this one is an interesting platform, stable and powerful unit and good video quality, look like it is a winner over the JXD and the CX33.

Edmond
Last edited by Edmond Y; Dec 29, 2015 at 01:51 PM. Reason: found fpv model
Dec 29, 2015, 01:43 PM
GOT WINGS
siriusflier's Avatar
Great review and you answered some of my questions, like the motor size are actually N50 instead of the N40 printed on bottom.
I have not attempted a teardown yet, but I thought by looking that you might be able to remove the motors by taking off the props and main gears, the motor cover, and removing the 2 motor mount screws, mine has two holes to insert screw driver to remove motor mount screws? I do not look forward to removing 80 screws to disassemble the body.
I have not been able to get the wifi connection to the wifi camera to work on my H26W version, and I have not had internet access since Saturday becasuse a winter storm knocked out our electricity until 8am this morning.
I tried the altitude mode last night and I think it was working, it held the quad at about 20 feet for almost a full minute, but I am still not sure about it. I did turn off the transmitter once at about 4 feet high, and it seemed to slow the motors and lower it to the ground immediately. And I did get at least 450 foot range before I set it down because I couldn't see orientation well enough.
Anyway, so far I think it is a very good quad for the money.
Dec 29, 2015, 04:04 PM
Registered User
SeByDocKy's Avatar
Thread OP
Quote:
Originally Posted by siriusflier
Great review and you answered some of my questions, like the motor size are actually N50 instead of the N40 printed on bottom.
I have not attempted a teardown yet, but I thought by looking that you might be able to remove the motors by taking off the props and main gears, the motor cover, and removing the 2 motor mount screws, mine has two holes to insert screw driver to remove motor mount screws? I do not look forward to removing 80 screws to disassemble the body.
I have not been able to get the wifi connection to the wifi camera to work on my H26W version, and I have not had internet access since Saturday becasuse a winter storm knocked out our electricity until 8am this morning.
I tried the altitude mode last night and I think it was working, it held the quad at about 20 feet for almost a full minute, but I am still not sure about it. I did turn off the transmitter once at about 4 feet high, and it seemed to slow the motors and lower it to the ground immediately. And I did get at least 450 foot range before I set it down because I couldn't see orientation well enough.
Anyway, so far I think it is a very good quad for the money.

Yes you are right... It may be possible to extract the motor without removing everything: 1) you need to remove the props then 2) to remove shaft/gear then 3) the two screws holding the motor should be accessible.


Yes I saw on news terrible tornades in US .... dam ned global warming ....

Definitvely for around 90 bucks ... it's pretty good deal...
Dec 29, 2015, 06:38 PM
GOT WINGS
siriusflier's Avatar
The tornados were about 150 miles east of where I live, we had high winds and a lot of ice that tore down electric lines and broke poles here. My sister lives about 10 miles east of me and we couldn't contact her, so I drove down to check on her, she still doesn't have power, but she's ok. There were electric lines and poles broken and laying on the ground that entire 10 miles of country road, so probably I am lucky to have electricity.
Thanks for confirming the N50 motors, I ordered 6 more X6 motors from Banggood, they even look like they have the right pinion on them, though I would like to use polymer pinions.
Dec 30, 2015, 10:28 PM
GOT WINGS
siriusflier's Avatar
SeByDocky, after about 2 hours of hacking because the wrong QR bar code was included in the instructions for the wifi app, I finally got the camera to work. Recorded a short video, and it looked fairly good on my cellphone. But there is no sound and another with the H26W says he gets no sound either.
So my question to you is - does the H26D camera have a microphone for sound or record sound?
Dec 31, 2015, 02:36 AM
Registered User
SeByDocKy's Avatar
Thread OP
Quote:
Originally Posted by siriusflier
SeByDocky, after about 2 hours of hacking because the wrong QR bar code was included in the instructions for the wifi app, I finally got the camera to work. Recorded a short video, and it looked fairly good on my cellphone. But there is no sound and another with the H26W says he gets no sound either.
So my question to you is - does the H26D camera have a microphone for sound or record sound?

Yes I got the sound with the D version
Dec 31, 2015, 08:42 AM
Registered User
SeByDocKy's Avatar
Thread OP
A new video from this morning

JJRC H26D new flight session (Courtesy Banggood) (6 min 26 sec)
Dec 31, 2015, 02:27 PM
www.freedrone.gr
Frontier's Avatar
Hi Seb, nice review.

In the last video and on the text review, you mention that the quad has altitude hold mode.
Does it has a barometer? I am asking because from the pictures you posted, it does not have one, unless it is on the other side of the RX board (the one that is not shown).

Thank you very much in advance and wishing you and everyone else a happy new year!
Dec 31, 2015, 07:01 PM
GOT WINGS
siriusflier's Avatar
I have tried what I think is the altitude hold button on the H26W version that I have, and once it stayed at the altitude when I pushed the button for close to a minute with no throttle input, just elevator and aileron input. But although I thought I got it to work like that one other time, I am not sure if it has altitude hold or not. There are really no instructions about it in the manual, just has "A key fixed high" on the picture that labels the transmitter button functions. What do you think about the altitude hold SeByDocky?
Jan 01, 2016, 02:15 AM
Registered User
SeByDocKy's Avatar
Thread OP
Quote:
Originally Posted by siriusflier
I have tried what I think is the altitude hold button on the H26W version that I have, and once it stayed at the altitude when I pushed the button for close to a minute with no throttle input, just elevator and aileron input. But although I thought I got it to work like that one other time, I am not sure if it has altitude hold or not. There are really no instructions about it in the manual, just has "A key fixed high" on the picture that labels the transmitter button functions. What do you think about the altitude hold SeByDocky?
Well to be honest, I didn't see a big impact when this button was pressed on .... From my side, it's still under investigation
Jan 02, 2016, 11:48 AM
Registered User
t00nz843z's Avatar
It's about time that a quadcopter company would put a little effort into the camera. Had a chance to test one out also. Here are some thoughts on it.

Pro's
- Relatively good wide angled lens HD camera for a toy grade quadcopter.
- Very stable and gentle flier. Perfect for aerial video purposes.
- Excellent control range of up to 300 meters.
- Brushed motors have heat sinks to keep motors cool and possibly improve motor longevity.
- Includes headless mode and one key return.
- New (actually original) headless mode concept. Does not remember the direction it was pointed when launched. Instead it remembers the direction the quadcopter was pointed when the headless mode is activated, even if in flight.

Con's
- No indicator of the camera gimbal angle. You'll need to guess or fly in closely to allow visual confirmation of the set gimbal angles.
- 436 grams (well over the 250 gram FAA exemption limit). Will require the pilot to be registered with the FAA.

And here's my flight with it.
JJRC H26D Camera Drone with Gimbal Flight Test Review (18 min 26 sec)
Jan 02, 2016, 12:06 PM
R/C Superfan
aben71's Avatar
Looks pretty good for the price,definitely on to consider in comparison to the Syma X8c


Quick Reply
Message:

Thread Tools