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Search: Posts Made By: quorneng
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Forum: Beginners
Yesterday, 08:22 PM
Replies: 2
Views: 58
Posted By quorneng

Elecam Don't worry too much about your full...

Elecam
Don't worry too much about your full size experience causing a crash. I can assure you virtually everybody crashes (and more than once!) when learning RC flying no matter what background they...
05-14-2020, 06:17 PM
Replies: 13
Views: 2,554
Posted By quorneng

"I can't get the motor to run" I assume the ESC...

"I can't get the motor to run"
I assume the ESC is 'arming' (making cell count beeps) for the Rx & servos to work. Does the motor 'twitch' at all when you open the throttle?
If you have replaced...
Forum: Beginners
05-11-2020, 11:12 PM
Replies: 2
Views: 187
Posted By quorneng

soundbyte As far as I can tell you don't need...

soundbyte
As far as I can tell you don't need anything more to charge/balance charge your LIPos or charge almost any other type of battery come to that! You set the type and number of cell in the...
Forum: Beginners
05-06-2020, 06:50 PM
Replies: 5
Views: 259
Posted By quorneng

soundbyte My own view is that 6 or 7 channels...

soundbyte
My own view is that 6 or 7 channels is plenty to be getting on with so nothing wrong with a DX7. By the time you find you really must have 10 channels or more you may well want a different...
05-05-2020, 11:58 AM
Replies: 7
Views: 398
Posted By quorneng

Very impressive and the inspiration for the plane...

Very impressive and the inspiration for the plane in Indiana Jones "Raiders of the Lost ark".
05-04-2020, 05:35 PM
Replies: 7
Views: 1,821
Posted By quorneng

Flysfloats It now a very old design so interest...

Flysfloats
It now a very old design so interest is likely to be limited.
There is a Regal Eagle rebuild taking place now (https://www.modelflying.co.uk/forums/postings.asp?th=154241&p=1) on the...
Forum: Foamies
05-04-2020, 01:02 AM
Replies: 2
Views: 221
Posted By quorneng

Gary27 The Watts any specific motor generate is...

Gary27
The Watts any specific motor generate is determined by the battery voltage (the number of cells) and the size (diameter and pitch) of the prop. A smaller prop than the recommended simply will...
04-20-2020, 11:40 PM
Replies: 11
Views: 494
Posted By quorneng

jromer It looks like the Aeroscout take an...

jromer
It looks like the Aeroscout take an perfectly standard 2200 mAh 3s 30c.
Unfortunately the Aeroscout uses EC3 connectors so the batteries are not so common and are thus more expensive (in...
04-18-2020, 12:29 AM
Replies: 11
Views: 494
Posted By quorneng

Is the battery in any way now puffy? This is a...

Is the battery in any way now puffy? This is a sign the battery chemistry has been damaged.
Even if you get is to recover and charge up to the normal 4.2 V per cell it is almost certain it will now...
04-15-2020, 05:52 PM
Replies: 14
Views: 409
Posted By quorneng

I am pretty sure an ESC will not respond to an...

I am pretty sure an ESC will not respond to an instant signal cut out as a servo would.
The ESC will react instantly to an signal interrupt and cut out. When the signal returns at more than the...
04-12-2020, 09:11 AM
Replies: 14
Views: 409
Posted By quorneng

rc727737 From the tests you have done it...

rc727737
From the tests you have done it certainly sounds like the Tx is at fault. I would also use a servo tester to run the ESC and motor just to be sure they worked.
Then use the DX6i "monitor"...
04-10-2020, 12:06 PM
Replies: 14
Views: 469
Posted By quorneng

The key figure with electric flying is Watts/lb....

The key figure with electric flying is Watts/lb. This list shows the sort of figures required.

Less than 50W/lb - very lightweight / low wing loading slow flyer.
50 to 80 W/lb - light powered...
04-08-2020, 10:34 PM
Replies: 14
Views: 469
Posted By quorneng

Volstruis Your motor will draw 50 A on a 2 cell...

Volstruis
Your motor will draw 50 A on a 2 cell if you give it a big enough prop! ;)
The prop clearance of a specific plane will determine the maximum prop diameter and that in turn will set the no...
04-06-2020, 09:40 PM
Replies: 3
Views: 415
Posted By quorneng

A1007 If the LiPo show identical (within 0.05V)...

A1007
If the LiPo show identical (within 0.05V) cell voltages the LiPo are not likely to fail but are more likely to have both a reduced capacity and a lower maximum discharge rate possibly by as...
04-02-2020, 01:56 PM
Replies: 7
Views: 1,105
Posted By quorneng

For a "vertical riser" saving weight is key but...

For a "vertical riser" saving weight is key but you are still quite a bit above my rocket which weighed just 695 g ready to go. It had about 850g static thrust available.
The development and build...
04-02-2020, 10:28 AM
Replies: 7
Views: 1,105
Posted By quorneng

I fear that to produce 4 kg, or even 2.5 kg, of...

I fear that to produce 4 kg, or even 2.5 kg, of thrust within an 8 inch diameter body you would have to use a multi bladed fan. A prop will not create such thrust. Using two 4" (100 mm) diameter side...
Forum: Beginners
04-01-2020, 12:11 PM
Replies: 7
Views: 583
Posted By quorneng

Jimigunne I suspect the problem is with the...

Jimigunne
I suspect the problem is with the helo rather than the router.
2.4 and 5 are normally very clever, testing for and selecting a specific frequency, or even several and hoping between them,...
03-03-2020, 10:14 AM
Replies: 11
Views: 1,583
Posted By quorneng

My AN2 was really built to test the principles of...

My AN2 was really built to test the principles of combining 3D printing and thin Depron sheet into a scale structure that flies well rather than for looks.
Along the way I wanted to test if a full...
03-02-2020, 07:27 PM
Replies: 11
Views: 1,583
Posted By quorneng

Hi Its wing span is 50" (1270 mm). And being...

Hi
Its wing span is 50" (1270 mm).
And being a biplane it takes up rather a lot of room.
A rather poor video of its second ever flight.
https://www.youtube.com/watch?v=A_koMXdAwPg&t=30s
03-01-2020, 12:23 PM
Replies: 11
Views: 1,583
Posted By quorneng

10 lb Nylon mono filament line is used for the...

10 lb Nylon mono filament line is used for the bracing wires.
This is normally considered 'stretchy' but as each line is capable of lifting 5 times the all up weight of the AN2 the degree of stretch...
02-26-2020, 03:45 PM
Replies: 2
Views: 569
Posted By quorneng

Truly spectacular scale detail and it flies well...

Truly spectacular scale detail and it flies well too!
But the title should be float plane not flying boat.;)
02-24-2020, 09:24 PM
Replies: 11
Views: 1,583
Posted By quorneng

As the wings are a constant chord I decided to...

As the wings are a constant chord I decided to use 3D printed ribs.
187878
Although the wing section is the same the ribs are cut off at different lengths to account for the flaps and ailerons...
02-23-2020, 09:13 PM
Replies: 3
Views: 593
Posted By quorneng

Quite remarkable and it flies really well.

Quite remarkable and it flies really well.
02-18-2020, 07:14 PM
Replies: 4
Views: 659
Posted By quorneng

Wildflyer That wing construction looks...

Wildflyer
That wing construction looks extremely scale.
What are the main cross braces made of? What ever they are made of it gives a very good impression of wire bracing.
02-17-2020, 11:35 PM
Replies: 11
Views: 1,583
Posted By quorneng

The next stage is the fin and tail plane. ...

The next stage is the fin and tail plane.
Simple symmetrical camber structures using 2 mm Depron skins.
187871
The tail plane brace is Depron but it has balsa leading and trailing edges for...
02-09-2020, 03:13 PM
Replies: 7
Views: 1,105
Posted By quorneng

Shantz It would help if you describe what the 4...

Shantz
It would help if you describe what the 4 kg of thrust is for and how it is to be used in VTOL For instance one motor or many?
All VTOL requires specific control and stability features that...
02-08-2020, 12:22 AM
Replies: 11
Views: 1,583
Posted By quorneng

The AN 2 undercarriage is supported by a stub...

The AN 2 undercarriage is supported by a stub centre section of the lower wing which is braced by a strut to a specific fuselage former. It was obvious to simply include this in the former printing....
02-01-2020, 11:39 AM
Replies: 11
Views: 1,583
Posted By quorneng

Don Thanks. The 9 cylinder is virtually a kit...

Don
Thanks. The 9 cylinder is virtually a kit of printed parts. 7 bits make up each cylinder ending up with over 70 in all but it does give the lightest and finest detail end result.
The cowling in...
01-29-2020, 09:34 PM
Replies: 11
Views: 1,583
Posted By quorneng

Antonov AN 2 in Depron with 3d printing.

When I first got my 3D printer I played around trying to create a fairly detailed 9 cylinder radial with a brushless out runner enclosed within the crankcase
Now after a couple of years learning how...
Forum: Beginners
01-29-2020, 01:21 PM
Replies: 28
Views: 11,646
Posted By quorneng

Jools Wow! I will let the content of your...

Jools
Wow!
I will let the content of your reply speak for itself.
Showing results 1 to 30 of 500
 


 
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