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Posted by old4570 | Today @ 12:06 AM | 2,401 Views
Hobbyzone Sport Cub S 2 (7 min 23 sec)


2nd trip to the field and 3rd flight .

Hmmm !

Expert mode is lethargic ! ( Aileron )
The S 2 is under powered for anything exciting .
What it does do really well , is fly SLOW - real slow ! Were talking sexy slow ! I think you could walk faster than the S 2's slow capability .
Intermediate mode is ?? ...
Seems out of place , Int is a wilder ride than expert mode ,,, What's with that ?
I would like for the S 2 to at least roll , and not into the ground !
That TT looks brilliant in comparison .
Got a serious ITCH for the S2 ? = Buy the Turbo Timber ( UMX ) instead .
I would lose no sleep if the S 2 was phased out of production .
In fact , I would love to see a Super Turbo Timber . ( Better than 1:1 power to weight )
Posted by old4570 | Jun 19, 2021 @ 07:46 PM | 16,491 Views
Hobbyzone Sport Cub S 2 (7 min 41 sec)


I set up all the flight surfaces as straight and level as I could .
Battery is a Nanotech 260mAh 1s , it's simply a press fit into the battery bay / slot .
CG did seem to be good .
The S 2 did balloon quite a bit , and to not hang off the prop I needed a fair amount of down elevator .
That really slow flight , the S 2 is hanging off the prop some what .
I came home and made a adjustment to the elevator ( down trim ) . The more power I gave , the more it climbed .

Beginner Mode - Wow , can still turn tight . very smooth and my only complaint is the ballooning .
Intermediate mode - Far more responsive , maybe too much so . Really took me by surprise . For a moment I thought I had entered expert mode .
Expert Mode - Seemed a little lethargic to me .

Really going to have to trim out that ballooning .
Power - yeah , needs more power ! Just , under powered .

As a beginner plane . I can see that . Just needs more power so as to grow with the pilot .

Hmmm , Does it offer anything that the UMX Turbo Timber does not ?
Since I own both , I think the TT is the better choice . The size difference is marginal . Where you can fly is pretty much the same . Price ? Rather close .
If you think the TT is too expensive , then give up a few Beers or cigarettes or both and put that money into the TT .
So after adjusting the elevator , I need a 2nd maiden . Be nice to see what the S 2 can...Continue Reading
Posted by old4570 | Jun 18, 2021 @ 08:55 PM | 20,476 Views
So lets do this :
Bind is DSMx 11ms - The first attempt failed , so I powered the S2 down and then powered it up and tried to bind a 2nd time - Instant bind the 2nd time .
Rudder / Aileron / and Ch5 all needed to be reversed .
Ch6 was routed to my Trainer Switch - This is the panic recovery function . No need to reverse .
My timer and timer re - set are VIA the two position switch I use for throttle cut . So when I activate throttle cut I also re set the timer . And when I de activate throttle cut I start the timer .

I soldered in a new battery plug / and will be using the Nanotech 1s batteries , the one I reached for is apparently 260mAh .
Flying weight is going to be around 66 grams .
CG with the Nanotech ? Looks like it might be close to the money , wont know till I fly it .
Still need to neutralize all the flight surfaces , which I will do after lunch .

Installed a custom JPG for the model image , and also set up the screen to show the battery voltage of the flight battery .
A nice feature , especially when you dont know how long that battery will last .
Posted by old4570 | Jun 17, 2021 @ 11:55 PM | 10,300 Views


Volantex Sport Cub 500 ( 60 grams flying weight )
Priced from $140 AUS to $180 AUS with or without free shipping . In oz expect about $20 for shipping . ( 180 is the banggood price )
It is a RTF and I dont think a BNF is available .
Protocol is V761 - 4ch

Hobbyzone Sport Cub S 2 ( Weight around 57 grams less battery )
Got mine for $160 AUS with free shipping ( Ebay discount voucher )
Usual BNF price is $200 AUS

So from a price perspective , they are very close .
The S2 is the larger of the two with larger control surfaces .
I will re-plug the S2 for batteries I have in large number , so flying weight might end up closer to 70 grams for the S2
Yet to do anything to the S2 , so consider this a quick and dirty comparison of two popular Micro sized Sport Cubs .
In the US you can have the S2 RTF for $140 USD , and the Volantex should be considerably cheaper .
Butt ? What about the flight experience ?
Which is better to fly ?
Im thinking it might go to the S2 as just looking at it - it looks a little more serious .

So I have to solder a new battery plug to the S2 , then bind it to the TX16s and set up the functions .
Then go fly .
It's raining again here ( Winter ) , but Sunday might be ok ?
Posted by old4570 | Jun 17, 2021 @ 07:57 AM | 11,055 Views
TX16s and the Volantex Sports Cub 500 (4 min 13 sec)


Ok , I was really pleased with the result of the 30% Rudder to aileron mix in beginner mode , so I did the same mix for intermediate mode . I wanted the Cub 500 to turn tighter for smaller spaces . I mean really tight . So If I tried real hard , I might be able to turn it inside a 2 meter square box now .
I like the ability to turn tight .

That TX16s really does fly the Cub 500 smooth .
Posted by old4570 | Jun 16, 2021 @ 01:17 AM | 24,349 Views
And by fails - I mean fails to bind !
I have a Micro heli - My very first one ! & I lost the controller for it .
Not that I want to fly it anymore ! - But I do want to pull out the flight control board and turn it into a small glider
Butt ! I cant do that if I cant control the flight control board .
So I burned some time trying all the protocols to get a bind .

Fail 2 = Joyways Invader Wing .
Actually I have already pulled the Rx out and replaced it with a new Rx and brushed ESC so I could fly the wing .
Original factory Tx & Rx combo was so bad , I renamed the model Crash Invader .
Well that Tx & Rx are in my motor glider project and are still a PITA to use . Even thought the motor glider is slow and stable .
I did hope the Tx16 had a protocol to cover said Rx , butt alas no !

About 90 minutes of my life flushed away .

I really do wish that manufacturers would standardise their protocols a little more .
Simply because some of the ( many / many ) toy transmitters are just complete rubbish . And the ability to bind to a hobby grade transmitter could very well be the saving grace for what otherwise would be a complete rubbish experience ( as in bound for the rubbish bin ) .
I remember binding my V911 heli to my 9x Transmitter . Chalk and cheese .. On the 9x , it was just a completely different animal . Well behaved and responsive while the factory Tx was vague and just a PITA to use .
Oh well ! I just might have to throw that little heli in the rubbish , it's just collecting dust !
Posted by old4570 | Jun 13, 2021 @ 07:04 PM | 33,440 Views
Micro Stunt Tundra (6 min 6 sec)


Micro Stunt Tundra =
1306 4000kv Motor / 10 or 12 amp esc ( dont know which ) , and a 5030 Gemfan .
What makes it stunt is the flap to elevator mix ( like on a C/L model ) .

Outside Loop =
Starting with inverted flight , one simply does a loop keeping the loop to the inside ( belly ) .
Sorry , yeah ,, Keep the belly inside the loop ...
You really need some inverted control authority for this . ( Stunt flap mix )


Posted by old4570 | Jun 12, 2021 @ 07:55 PM | 42,545 Views
Radiomaster Tx16 and the Turbo Timber (10 min 8 sec)



A) Smooth as margarine !
B) TX16S - Am I loosing some control deflection ? Flying inverted , it really felt like I did not have enough elevator to hold inverted flight . Maybe it was cos I was trying to fly slower ? But it really felt like I had given up some throw , even in rolls .
C) I love the battery Voltage readout . ( Flight battery ) Makes flying so much safer . ( Knowing the flight battery voltage )
D) Being able to customize the main screen , nice !
E) No frequency fine tune . Oh dear ! ( more later )
F) I may try placing the battery a little further back next time ( CG ) , make holding inverted easier ? , one hopes .

Ok so , I am missing the frequency fine tune . Though the Tx16 is really smooth and precise . That roller / clicker is a PITA . I was getting more Signal warnings with the Tx16 than with the Qx7 + Multi protocol module . A lot more . ( Need that freq fine tune ) .

Aside from some things being (?) what they are . Scroll wheel / Switch crowding / Freq fine tune / some loss of control throw (?) I will have to check that .
Maybe it's just how the Tx feels ? Maybe it's too smooth and precise ? Flying a model , the Tx feels great on the gimbals and the model just flies smooth .
Too much of a good thing ?
Maybe I need to back off on the Expo ?
Either way . Id say over all that the Tx16 is a fine radio .. lets not forget that warranty thing if you...Continue Reading
Posted by old4570 | Jun 11, 2021 @ 07:52 AM | 35,389 Views
UMX Turbo Timber is bound to the Tx16 .

What I like is that you can output telemetry to the screen , and the feature I wanted at a glance was the battery voltage of the 2s in the TT .

I have for now left rates at 100% and set my Expo to 50% on all flight surfaces .
We have another huge weather front to deal with again , but I did fly the TT in the street just to see how it felt .
I liked it , .... But not sure how many days this weather is going to hang around for ..

Last weather front lasted 3 days , actually more like a week . It was 3 days of massive rain and wind .
So really wanting to get out with the TT . This time I have left the TT with full flap . When it was bound to the Qx7 , I had set flaps to 25% and 50% .. This time I will have 50% and 100% flaps ...

100% flaps , oh man ! It flew so slow , I thought it was going to fall out of the sky when I did a turn . It was like watching a replay in slow motion . After my first slow motion turn I was so flabbergasted I flew the TT into a tree .. It spun around like a frisbee and nose dived into the ground . I was flying so slow and so low , I could not even find a scratch on the TT ( That was lucky ) .
With 100% flap , it's just freaky slow . So if you have seen previous video , my full flap was actually 50% flap . There is no video this time , cos it was a spur of the moment thing just after I range checked the TT . Really looking forward to playing with the TT bound to the Tx16 .
Posted by old4570 | Jun 10, 2021 @ 11:19 PM | 28,511 Views
Went out today for a fly with the Tx16 and Volantex Sports Cub 500

Way , and I mean - way too stable ..

It was Uber Smooth .
But not enough control input .
Ailerons were almost non existent ..
Needed all the rudder there was to turn the model .
The modes all worked , but I just lacked control authority . Could be the model .
Also the factory Tx might give more servo travel ? ( Cub 500 )

Hmmm , next model ? Maybe bind the UMX TT .
Anyways , Tx feels just fine .
Walking to the Football Field that handle is super comfortable and I can fit all my fingers inside the grip . ( Tx16 )
I like that a lot .

So no complaints so far for actual use .
To really shake it down , I will need a more responsive model like the TT .
The TT flew out of the box with no trimming required , so this will have to be next .
Posted by old4570 | Jun 09, 2021 @ 12:55 AM | 16,914 Views
Radiomaster TX16 create new model and select model (1 min 51 sec)


Create a new model / select a new model ..

Sorry , left out a click .. But everyone gets it right ..

Create a model

A) Turn on the Tx
B) Click and hold the scroll wheel
C) Click model select
D) Highlight a plane (?) Icon , Click and hold
E) Click Create Model
F) Select glider or plane and Click
G) Now you can exit by clicking the Return button ( top left black button )
H) And you have a new model ..

Change models
A) Click and hold the scroll wheel
B) Click model select
C) Highlight the model you want , Click and hold
D) Click select model
E) ANd you have selected a new model .

Wow , so to adjust your gimbals , you are voiding your warranty !
Well done RADIOMASTER , way to be a bunch of tools !
Posted by old4570 | Jun 08, 2021 @ 09:05 PM | 17,869 Views
So at long last I got me a TX16s Hall Sensor bla bla Transmitter .

What don't I like ( First impressions ) Yeah there us stuff not to like !

That scroll wheel - I am really learning to hate that ! Yes , hate is a strong word .. BUTT ! Im really / really / learning to hate it !

Almost every time I want to press enter ( Scroll Wheel ) , that stupid wheel rolls and I end up entering the wrong function = massive PITA !

My kingdom for two ( That's two ) Two position switches .

Speaking of the switches , it really gets crowded up there with all those switches . And it's terribly easy to accidently activate / move the wrong one .

I guess that takes care of what I am learning to not like about this Tx .


Every Tx has a learning curve , the Tx16 is no different .
Been using OpenTx for a while now , and the menu lay out is way different .

First thing you should probably do is calibrate the joysticks N stuff .
Once that's done you can set up your first model .

For the model Menu - it's the silver button on the right side of the transmitter . Press and hold for the menu .

Now you can name your model N stuff .

The very first model to be bound is my Volantex Sports Cub 500 .

Scroll down till you get to protocols ..

For the Sports Cub it's V761 ( V761 ) & be sure to select 4ch .....
Now scroll down to bind ..

First power up your model ..
Then activate the bind function .
The model...Continue Reading
Posted by old4570 | Jun 06, 2021 @ 08:45 PM | 24,736 Views
Marbles Sowbelly D2 (8 min 43 sec)


I have wanted this for quite some time . Really wanted to see if Marbles could make a decent knife ( edge holding ) .
Certainly from even the early days of Chinese manufacture the Marbles knives were bolted together well .
Butt !! , in my world the knife is only as good as the steel the blade is made off .

The knife feels great , you could spend $100 or $200 and not get a better feeling knife . The walk & Talk is all that and more . How ever !
When it came time to slice rope the performance was painfully ordinary . The knife failed at 100 slices of rope with the factory edge , and failed at 100 slices of rope with the guided knife sharpener edge . Two times failed at 100 slices , at least it's consistent . Unfortunately the blade steel is struggling to compete with 420SS , and one has to wonder about the D2 claim . Certainly the blade steel comes no where near D2 performance levels , and cant even compete with budget steel like 420 440 or half decent CrMov .

So ? Looks great , feels great , is bolted together great , but performs very ordinary . If the blade is D2 then it's kind of a rubbish D2 . Putting the knife to the leather strop , it took about 10 passes in total to bring back a paper slicing edge . I think they call that easy edge maintenance ! But ill trade that for edge holding every day of the week .
100 Slice fail , thats right up there with Remington / Case / Camillus knives .
But not there with decent modern D2 knives which should give you 400+ slices on the rope .
Posted by old4570 | May 31, 2021 @ 10:41 PM | 24,806 Views
I depron'ed the tips ..

Hmmm , now about the LE and TE . ?

Do I maybe put a little Depron on the LE and laminate some balsa to the TE ?
Kind of leaning in that direction .


Posted by old4570 | May 31, 2021 @ 05:13 AM | 25,955 Views
Hmmmm

Depron ? The inside bays where the wings join , I filled with 3mm depron .
Yes the servos go in there , but I can cut slots for that .
I really need material for contact surface for the iron on film .

So the plan - Is to use depron filler at the wing tips for stiffening and strength .
What I do about the Leading Edge ( LE ) and Trailing Edge ( TE ) , Im not sure yet .
Posted by old4570 | May 29, 2021 @ 07:52 PM | 31,480 Views
or or

Take your pick !

Even for a tissue covered wing , I see problems . Lots of problems .

A) Carbon rod LE - This is going to be a PITA to work with . No seriously . Im not tissue covering , so we are talking about light pole sized PITA .
B) Using the sheet for the back of the wing is another light pole sized PITA . It really has little structural strength .
C) Following the video build ( on youtube ) laying the rear sheet over the balsa spar is a ( ? ) mistake . As it raises the surface of the rear wing above the the exposed wing ribs . So I will need to lay some balsa over the wing ribs to raise them flush with the rear sheet .

In fact , I can see myself doing a lot of wing mods to strengthen the wing , so it can handle heat shrink film and not be crushed .
The wing is finished , except for the sanding - Is what I would like to say .
The wing is far from done .
The wing is sort of trick , but not in a good way .

I like the way the spar and ribs work - really I do .
The LE neds to be re designed to be balsa - 0.5mm carbon re enforcement ? ( Why not )
Also the TE needs to be re designed .. More 0.5mm carbon re enforcement ? ( Hell yeah )
Make the wing strong enough to handle heat shrink film .

The wing tips - Flimsy . Is this supposed to be DLG ? Im not done there either .
As is , if I put that laminating film on this wing . It would be crushed / and warped so badly .
Even tissue covered - I would be worried .

It looks good on video and all - watching it being thrown about .
But I would rate it seriously Mickey Mouse ! My wing will need strengthening and corrections .

Not done !
Posted by old4570 | May 28, 2021 @ 12:28 AM | 27,368 Views
A) How I am building the wing .

I took the inboard rib and taped it to the plan as well the outermost rib . Then I glued them to the spar .
After that I glued the remaining ribs one by one to the carbon spar keeping them straight . Once that was done I glued in the balsa spar .
The LE carbon rod was then glued in place .
I used rubber bands for this to pull it into the ribs .
I started inboard , gluing about 3 ribs . Then slowly outboard to the tip .
I used medium cyno as I wanted slow cure , this would give me time to keep things straight .

Straight is a concept - The parts supplied are not super straight . This can be challenging I guess .
So building a straight wing ? Well as straight as the supplied components will allow .

B) Sheeting the wing - Yeah , the back of the wing uses sheet balsa . And this balsa was warped all over the place .

So I am just straightening those sheets at the moment .

A) Moisten the balsa sheets . ( Old trick )
B) Then lay them on the floor with a world atlas lying on top of them till they dry .
C) I took out about 90% of the warping
D) right now those sheets are being pressed inside the atlas between the pages
E) Hopefully the atlas will draw out any remaining moisture ( is that a bad thing to do to a world atlas ? ) and straighten the sheets even more
F) I hope .....

Tomorrow I will sheet the wing as per plan ( That's the plan )
Posted by old4570 | May 26, 2021 @ 06:48 PM | 31,272 Views
That Bee Hive Covid is back .. Looks like another period of forced Detention .
Well , I guess Australia is a Convict Colony after all . ( So lock M up ) .

My Mum is putting in Overtime on the new computer , I guess she like it .

Those sheets , so warped !

Can only build the wing as straight as the components allow .

Such is life ...

I will have to try and straighten those sheets .. ( I must try )
Posted by old4570 | May 26, 2021 @ 02:10 AM | 25,655 Views
Build begins !
Yes , have to start with the wings .
All the ribs were good except for one small one that was not laser cut well , so broke ..
( I glued it back on printer paper so that the printer paper would act as backing and hold it together )

Other than that , I am moving slowly .

I taped both ends of the wing down onto the plan and then glued the ribs one at a time ( keep things straight ) .

The wood is not that straight !
Those sheets are warped every which way ..
I may have to stack some books on the sheets and see if they will straighten .

Busy busy busy ! Just got Mum a new computer , so I need to tweak it a little so as to make it easier to use !
Stuffs a happening .
EDF Wing is ready , for something . I might have to test current draw ..
Posted by old4570 | May 24, 2021 @ 11:08 PM | 12,559 Views
Taken long enough right !

Phenix 60 , my 600mm EDF wing project has to date failed and failed again .

First fail was when the 30mm EDF motor up and died !
2nd Fail was the lack of thrust from the 2nd 30mm EDF unit .

The Phenix 60 is in dry dock having a 40mm alloy EDF transplant .

Yes , thats a BBQ skewer sticking out the Bee Hive ! It's there to keep an eye on the thrust angle ..
While the EDF gets glued in .
Hopefully , bye the time these big winds have had their fun , I can maybe have a 3rd maiden ( one with thrust ) .

XK A430 on a cold morning (5 min 42 sec)


I did half a loop from inverted ( half a outside loop ) ..
Next time , I will see about a full outside loop starting from inverted flight .