old4570's blog View Details
Archive for December, 2018
Posted by old4570 | Dec 30, 2018 @ 10:23 PM | 2,613 Views
Will be doing some tests on the Frsky Rx from Banggood .
Hopefully some interesting tests .
Techone DLG 1000 - Found a used one to buy
Real DLG Drought here in Oz !

Banggood = More DLG's ... ( Please )
Would love to see WLtoys do a Micro DLG around 700mm ( 2 or 3 channel )

Speaking off !

Found my V911 heli , I will pull out the control board and put it into a glider ..
In fact , I might keep the factory Tx to fly the glider with ( Just for a lark )
The other V911 board ? , one servo is damaged ..
I have another V911 board , but it resides in a micro Wing ..

I got some 949 boards , so they will go somewhere ..

????????? A few things to kick off 2019 ..
Posted by old4570 | Dec 26, 2018 @ 07:12 PM | 3,387 Views
Picture of Servo included ...

Dont know what to say - Just not impressed !


A) Rudder throw doubled ( Need that rudder )
B) Dihedral increased

I will re-attach the wing today ..
Way too hot to Park it ! ( 36c or 97f predicted for today ) Would not be surprised if it tops 100f though
Posted by old4570 | Dec 25, 2018 @ 10:03 PM | 3,617 Views
Ripit Rev2 (0 min 44 sec)

Ripit Rev2 is ready ....

Flying weight wet = 49.3 grams
I did try to go light , I really did .
The depron must simply be heavy .

The small HK servos , not happy with them .
I do like the receiver though . ( FS2A )
Watch the video , I do some Free flight in the back yard ..

The wind is up a bit , but this morning when I was looking for the CG there was no wind and the R/R2 glided like it was on rails .
I will have to go do some chuck testing ..
The weight is very close to the Ripit 1 ( 50 grams ) , and the RR2 is 49.3 grams ..
I must - I must try balsa ...
Next one ..

Update :

Went to the park

A) Those hobbyking servos bite the big one , horrendously poor centring ( Will provide a picture shortly - they be bad )
B) No rudder = ?? - Yep , physically it's there but the effect is zero
C) Elevator , effective . Perhaps a little sensitive .
D) Need more dihedral
Posted by old4570 | Dec 24, 2018 @ 06:17 PM | 2,638 Views
Jingle Bell Rock / Bobby Helms 1957 (2 min 12 sec)

Merry Christmas Everyone .

Have a happy and safe yuletide holiday .

Posted by old4570 | Dec 23, 2018 @ 08:59 PM | 3,180 Views
Emax Baby Hawk (3 min 46 sec)

Emax Baby Hawk

A) Hardest part was installing the XM Rx
B) 2nd hardest part was binding the Rx to Tx ( I needed help for this )
C) Betaflight was easy . Activate Ch5 , select a source ( Switch )
D) I set Arming and Horizone mode to the Switch
E) At the Tx I have 60% Rates and 40% Expo which gives me really nice hover and the baby hawk is still plenty lively
F) Cheap nasty 2s battery works fine so far ( gentle flying ) , and the 450mAh is good for a little over 3 minutes . Would not want to push that .

I have not had as easy a time of it as I have with the Emax Baby Hawk . From installing the Rx to setting up Betaflight the baby Hawk has been very easy . There were no nasty surprises and no challenges . ( Well , except for binding the Rx to Tx .. - I really needed two more hands for that )

I was surprised at how easily the baby hawk handles a decent amount of breeze as well how stable it was in the breeze . With 60% rates and 40% Expo the baby hawk still has plenty of speed and control-ability .
Seriously , simply the best quad experience to date . Even using a cheap nasty battery seems ok so far , just been doing a gentle bit of flying . It's all been line of sight so far , but just colour me impressed .
Looking forward to some FPV as soon as possible ..

Ripit Rev2 Updates

Soldered servos direct to the Rx
Wire sleeves melted , some hot glue used to separate them and keep them separated
Soldered a...Continue Reading
Posted by old4570 | Dec 22, 2018 @ 07:41 PM | 3,407 Views

The Ripit Rev2 is moving forward ..
Next I have to do the Servos and controls + Rx and battery ..
The servos will be soldered directly to the Rx as will a battery plug
So hopefully get on with that ASAP ..

So far the build is about 35 grams , and I was trying really hard to go lite !
I would love to build something in the 30 gram neighbourhood .

Hmmm , might be hard to beat the UMX Whipit ..
Certainly the Whip could be reduced to the 30 gram neighbourhood ( me thinks )

This depron might be on the miss piggy side of materials ( foam )
Oh well , next micro DLG will be balsa wood .. I think I have some light sheets that have been aged about 2 decades or more . ( might be dry by now )

2 Days folks ( 2 Days )

Posted by old4570 | Dec 21, 2018 @ 11:44 PM | 3,096 Views
3 Days

It be windy outside . so !

A) Did some work on the XK A800 , found a elevator issue - fixed
B) KN / WLtoys for the protocol - Jumper T12 will be in charge from now on .

C) Emax Baby Hawk
1) XM Rx soldered in place
2) Firmware tuned
3) Tx @ 40 Expo / 60 Rates - Nice ....
4) 2 Batteries so far indoors
5) Still need to tune FPV goggles to the Emax

D) Being restricted by the weather to indoor RC , Ripit Rev2 is on it's way .
Moving along rather quickly compared to Rev1
Ammmmm ,

Wing is made up of two layers of Depron (3mm ) glued together , with a carbon spar ( .5 x 3mm )
Wing came out @ 17.2 grams after laminating film applied .
Wow , thats more than I wanted .

Next micro DLG HAS TO BE Balsa !!! ....
But I will take the Rip Rev2 to completion .. One needs the practice .

Oh - 3 Days till Christmas ( Xmas for some )
Posted by old4570 | Dec 20, 2018 @ 08:00 PM | 3,076 Views

Yes ! 4 Days till Christmas ( Xmas to some )

XK A800

I was really worried the controller would bit the big one , and it does bite the big one !
In a word it's a TOY Tx and nothing more .
I tried very hard to be smooth when flying the A800 and it was just not possible .
You have two speeds , very little and more . ( Stick input )

If you try to use a small amount of stick the turn radius is large and when you try to add a little more = Nothing happens !
Until you reach the point where you suddenly get maximum control input and the A800 literally jerks into a tighter manoeuvre . ( ?? )
It does make using the controller - less than rewarding .

What compounded the situation was probably the less than ideal flying conditions , was windy / gusty . And with trees around the turbulence was very noticeable , making keeping the A800 in the air challenging .

Now , Yes I did smack the ground a few times as the A800 seemed to want to do it's own thing . That flight stabilisation , I could not turn it off and some times when the wind got the model . It was very much guess work and pot luck as to what would happen .
I did mention I smacked the ground a few times , heck I even cart wheeled it across the park twice . The model itself is strong . How many models can cart wheel across a park and not be damaged ?

I was flying for about 20 minutes and then I got a little worried about the battery and thought it time to sashay on home . I did check the battery (...Continue Reading
Posted by old4570 | Dec 20, 2018 @ 01:03 AM | 2,549 Views
Oh yeah ! 5 Days to go !

The Emax Baby Hawk is my last purchase for myself for Christmas ( Xmas for some ) .
I did order some nick knacks , for DIY fun .

Plan is to build some more DLG / HLG . The RIP is proving itself to be half decent for what was essentially a Lark !
So if I actually try to put in some effort to do things properly (?)
Balsa or foam ?
Maybe one of each ?

Also HK has some carbon tube , I got me one 10mm tube that would really work well with say a 1 to 1.2 meter DLG / HLG .
I ordered another 10mm Tube as well a 6mm Tube , unfortunately they were out of the 8mm Tube ..

Just wish I could get my hands on some more V911 flight boards , oh well I don't fly my V911 any more so might cannibalise it for the board .
Just ordered a trick looking capacitor glider , that just might lend itself to RC . The others are small and flimsy , but this one (?)

5 Days everyone ..
And I just saw this fantastic Quad deal @ GB , so hope everyone is watching for those deals .
I'm all quad'ed out , ....

So there you go
5 Days , I just hope the stuff I ordered for my family gets here before Christmas .
How bad would it be if the stuff is a few days late
Posted by old4570 | Dec 18, 2018 @ 11:24 PM | 2,903 Views

6 Days Till Christmas ......

Raven DLG ..

Today I got balancing .
Had to move the CG forward as the Raven is really Elevator sensitive and flies with a decent amount of Down elevator .
Had to make a extension cable for the new / Larger / heavier / 1s battery .

The weather is trying it's best to replicate a South East Asian jungle .. ( Humid as hell )
And I really can't stand humidity , too much like having a 10 ton truck parked on my lungs .
Just wares me down almost instantly .
Anyhow ! The raven is ready to ( maybe ) be broken again ..

Stuff !
Those Christmas goodies !
Yeah , I think I may have over indulged = ME !!!!

HK A800 , I really want to park this ASAP , just soo many toys to play with .
I just hope I have been a good boy !
2018 = Bad weather , not sure . but maybe the worst year ever for RC (?) Flying in anyway .

6 Days Everyone .
Posted by old4570 | Dec 17, 2018 @ 09:31 PM | 5,524 Views

Some may know the UMX Whipit broke it's Back .
But now it's back !

7 Days till Christmas !
I took the Whip to the park . And just as I stepped outside the house the wind picked up .
But you know ! It's 7 days till Christmas and I thought , no way man , the Whip is going to the park .

I was able to trim the Whip without problems for cruise and launch .
But the wind was really pushing the Whip around .
The park has this South facing slope ? , and the wind was coming from the South .
Hmmm , would the Whip slope off such a small gentle incline ?
Hell I was at the park !

Just as I got to the top of the hill / slope the wind became ? strange ..
It was there , it wasn't there .

I didn't get any slope action until the wind picked up and became a nice steady blow .
Actually got in all of 30 seconds of sloping ..

Oh well ? As I was about to go home the Sun came out and it suddenly warmed up ( Summer here ) .
I launched the Whip and actually hit a thermal !
I made some two more passes through the thermal and it then vanished ...

30 seconds of slope action and 3 passes through a thermal = Better than nothing I guess .
At least I got a bunch of exercise
I really was exhausted when I got home ( The humidity just crushes me )

Stuff = DYS ELF FPV micro quad 2s ...
I need some connectors for the battery so I can charge on the hobby charger .
Hmmm , Christmas goodies !

Speaking off Christmas

Christmas Sale Sitewide 15% Off coupon code: XMAS2018 , 15% off @ fasttech.com
Posted by old4570 | Dec 16, 2018 @ 08:01 PM | 2,461 Views
Wow , where the heck did the year go ?

8 Days till Christmas Folks ( Xmas to some )

And here we are with another Christmas ( Xmas to some ) bearing down on us like a steam train !
I hope everyone took advantage of the pre - Christmas ( Xmas to some ) sales period .

Oh Goody !
Something arrived before Christmas ( Xmas to some ) .
This year , I was a little disappointed with the Sales ! ( What Sales ? )
But one company was playing the game and they got a large chunk of my Christmas fund ( Xmas to some ) .
Posted by old4570 | Dec 15, 2018 @ 06:40 PM | 2,677 Views
The Black Project ....

Phenix 60 EDF'ed (1 min 48 sec)

This was a learning experience for sure .
In so many ways it was done wrong !

The little voice in my head said move the EDF further to CG , but the dumb dumb got in the last word . ( )
Now it takes a 1700mAh battery to get CG

I think the project was a bad idea from the start , it was never going to be anything but a brick .
But from the perspective of a learning experience ( getting schooled ) .
So the question now is = Will it fly ?
CG is about right , there is some thrust , but if only it was 100 grams lighter !

Bush League Modz

I have all these little quads and mini / micro DLG's now and I am getting lazy .
Getting out the hobby charger for every little battery ?
Oh man ! Just can't be bothered .

So in the wayback machine there was this little charger for 16340 - 10440 batteries that is USB .
And I remember it was a low current charger and I thought .. !!!!
Why not make a multi plug insert for the charger ( be 4.2v charger ) , so I can charge my little batteries ( 1s ) .

A) Components = Plastic lolly pop stick , bullet connectors and some leads / plugs for batteries .
B) Solder in place the leads to the bullet connectors ..
C) Glue the bullet connectors to your lolly pop stick ( cut to length )
D) tape it up and maybe colour code it .. ( Red for + , black for - )

And that's it ! A multi battery charger for small batteries that is bush league easy to do and use ..
Posted by old4570 | Dec 13, 2018 @ 07:46 PM | 2,638 Views
11 Days till Christmas ( Xmas to some )

Ripit Update .

Replaced the music wire for the rudder .
I put in originally a U bend in the wire for tweaking alignment , but turns out it was a spot for flexing . So the rudder was soft .
Replaced and now I have rudder .

I also put a decent sized nut on the front of the model to move the CG forward .
The Rip flies so much better for it . Chalk and cheese .

Raven Update .

Went to the park to peg it . ( peg launch )
Oh boy , launches really nice I have to say .
CG is too far back , I went for the factory recommendation and No ( no no no ) .
Going to try and move the CG forward at least 10mm .

Broke the Raven again .
This time the vertical fin broke along the bottom of the carbon boom .
Its been given a injection of cyno , so hopefully fixed ( even the carbon in the fin broke )

Flying weight , mine comes in right at about 150 grams wet .
And so far :

A) The tail area seems very fragile .
B) Launches so nicely
C) Factory CG recommendation = ??????????
D) Retail Price = I think it's too high for what you get ( Sorry )
E) Maybe a ARF version for $100
F) The raven has serious potential I think . ( Butt ) Are they going to develop it and address issues ?

EDF update !

My 30mm ED came ...
And I have started a new EDF project ..

30mm EDF from Banggood (1 min 33 sec)

Posted by old4570 | Dec 09, 2018 @ 09:33 PM | 2,733 Views

Sent for review by Gearbest.com
Discount Coupon ( GBold4570 )

Dimension: 18177mm (LWH)
Weight: 2g/ 2.4g (with two antennas)
Number of Channels:16CH (1-4CH PWM from conventional channel outputs, 1-16CH from SBUS OUT port)
Operating Voltage Range: 3.5V-10V
Operating Current: [email protected]
Operating Range: >2km
Servo Frame Rate: 9ms (HS—High Speed Mode)/18ms (FS—Normal Speed Mode)

For testing I was sent the Frsky RX4R from Gearbest.com .
I was very interested in this receiver for DLG purposes and it's possible 1s capability making for a very light Rx solution .


Please dont forget that the servos always plug into the Rx negative to the middle or signal wire on the outside .
The bind button is very small ( diminutive ) , at first I missed it completely . I needed something to magnify the board with to actually spot it , some one must be getting old or this thing is small .

Voltage Testing

I really wanted to see how low the voltage could go before the RX4R browned out . Factory say's 3.5v and I wont argue with them . But in my tests I got the Rx down to 3.2v with a 500mAh maximum current setting on my power supply . This is the lowest any Rx has gone I have tested so far , especially at the 500mAh setting . Now I thought I might throw some other servos at it from my normal analogue servos . I just received some digital servos from HK so I thought , lets give them a try .

The RX4R browned out straight away .
With the Rx getting 3.2v ,...Continue Reading
Posted by old4570 | Dec 07, 2018 @ 08:05 PM | 2,513 Views

With the recent sales I ended up with a Hobby King Raven .
Hmmm , where to start .. ?

Hinge Tape - The stuff used on the Ailerons is so stiff ..

A) The servos groan under the load .
B) The ailerons twist and bend stretching the covering
C) A carbon control horn broke lose

Obviously I had to remove it ( Hinge tape ) , simply horrendous stuff in my opinion .

The servos .. They don't centre well at all ..

Spring pull on elevator ..
Initially I thought it way soft , but seems to work ok as is for now .

I put in a RX4R receiver and a small 1s battery to get the CG pretty spot on for factory recommendation .
Use coupon code ( GBold4570 ) to get it cheaper at Gearbest ( RX4R Rx ) .
There will be a review on the RX4R posted shortly .

Chuck Testing

I took the Raven out for some chuck tests and trimming .
With all control surfaces straight the Raven pulled up when given a chuck .

Initially my Ailerons were set to 35% throw and my elevator was also set to 35%
The Ailerons were lack lustre at best and I increased throw to 45% .
The elevator was very sensitive and I put in some expo , I ended up with some 40% Expo when I had to come home . ( The Raven Broke )
Also my elevator has a serious amount of down trim for the Raven to glide straight and level . ( ? )

The Raven Broke

I was wondering about the vertical stabiliser and just how much of a weak spot it might be .
And weak it is .
On my very first landing I heard a crack .
A few landings more...Continue Reading
Posted by old4570 | Dec 06, 2018 @ 06:12 PM | 3,583 Views

Sent for review by Fasttech.com

Part 4 :

Jumper T12 Li-ion Battery .

Turnigy 1.8 12c ( 1800mAh ) 64mm x 50mm x 14mm

Well , I thought it might fit without having to mod the case . I was wrong , the cabling / wires coming out of the battery stopped the battery hatch from closing . So there was no choice , I had to mod the case . Opening up the T12 I decided to cut one corner out of the battery compartment . This would give me the needed space to run this battery pack .

Im a little surprised that the recess for the battery is stepped this way ( narrow at the bottom ) as there is plenty of room in the T12 to accommodate
a larger battery compartment .

The mod itself is relatively simple . There are 4 screws holding the battery compartment to the back of the case . Remove the screws and cutting out a corner becomes childs play . I also had to remove one of the posts for the screws from the back cover . Now the battery fits really well .

Some range testing .

DSM2 ( 22 ) - Redcon CM621 - Range tests on about par with other receivers at around the 15 to 20 meter mark in range test mode .

DSMx ( 22 ) Redcon RM601 50 meters in range test mode .

FrSky RX4R .. 50 meters in range test mode ( as far as I can test ) .

So far I really like the T12 .

I have the T8SG plus and Lite . The T12 would be my Jumper of choice .
The T12 is simply a fantastic companion Tx if you already use a full size OpenTx transmitter .
It just makes so much sense .

Thank you Fasttech.com for sending me the T12 , it really is all that and then some .

Part 1 of the review
Part 2 of the review
Part 3 of the review
Posted by old4570 | Dec 05, 2018 @ 07:07 AM | 2,822 Views

Coupon code: GBold4570
Price will be $29.99 after using the coupon.

Receiver is currently under testing/review .. But GB sent me a Discount Coupon to be used , why wait for the review ?
Posted by old4570 | Dec 01, 2018 @ 09:53 PM | 2,907 Views
A few things have happened ..

1st / Got me a Phoenix 1600 from Hobbyking - Was cheap ! ..
Had to replace the motor as the original cooked really well .
It's ready for some decent weather .

2nd/ Got me a HK Mig29 - Foam board Mig
Put my 64mm EDF in it and the EDF promptly went pop during a extended engine test run .
Was buttery smooth before the pop , then ran like a washing machine .
I tried to balance the EDF again , but ??? Looks like I need to take it out again ..
Ran smooth outside the model , but as soon as it went in , too much washing machine action ..
The HK 64 EDF me thinks is just too soft / flexible ..
Needs sorting out ...

3rd/ Broke my Whipit !
I kid you not , the pod broke in half ..
Me thinks strengthening the wing and giving it a peg just transfered stress to the pod .
Broke close to where the carbon boom ends ..
Fixed now ..
Glued the pod back together , then used the laminating film on it ..
Got rid of the hatch , now covered by laminating film .
Also put more lightening holes in the plastic nose cap .
Whip now weighs 47.6 grams ..

4th/ That foam safe glue ( insta cure ) is slower than 5 minute epoxy to cure .. ( PITA )

5th/ There will be a 4th part to the Jumper T12 ..
I ordered a Lipo I hope fits really well ( I hope )
Should be here on the morrow .
Then I can do a short squirt on the battery and hopefully do some range testing .

6th/ The Ripit glides ..
1st time out I broke the foam nose cone ....Continue Reading