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Search: Posts Made By: quorneng
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Today, 10:13 PM
Replies: 1
Views: 16
Posted By quorneng

Quite remarkable and it flies really well.

Quite remarkable and it flies really well.
02-18-2020, 08:14 PM
Replies: 3
Views: 180
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.
02-18-2020, 12:35 AM
Replies: 4
Views: 619
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, 04:13 PM
Replies: 3
Views: 253
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, 01:22 AM
Replies: 4
Views: 619
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, 12:39 PM
Replies: 4
Views: 619
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, 10:34 PM
Replies: 4
Views: 619
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, 02:21 PM
Replies: 28
Views: 10,486
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.
Forum: Beginners
01-29-2020, 11:56 AM
Replies: 28
Views: 10,486
Posted By quorneng

Jools In a turn as you describe the rudder...

Jools
In a turn as you describe the rudder creates yaw (which is not a turn) and you are relying on the wing dihedral to cause the bank that actually creates the constant turn. Until such time as...
Forum: Beginners
01-29-2020, 12:36 AM
Replies: 28
Views: 10,486
Posted By quorneng

My own view is that it is not ailerons that is...

My own view is that it is not ailerons that is the issue but the rudder.
You do not steer a plane in flight with the rudder but only use it to apply a 'correction'. From the ground it is difficult...
Forum: Beginners
01-27-2020, 01:04 AM
Replies: 3
Views: 310
Posted By quorneng

dasintex There is a school of thought that says...

dasintex
There is a school of thought that says connecting a battery to any motor with a prop is potentially dangerous so the only truly safe electric plane is one where the flight battery is...
01-23-2020, 04:42 PM
Replies: 15
Views: 754
Posted By quorneng

dasintex Not really, unless you want to stop...

dasintex
Not really, unless you want to stop one in flight on purpose! I did on my Cessna Skymaster. ;)
More likely reason is if you fit floats on your Twin Otter then individual throttle control...
01-23-2020, 01:34 PM
Replies: 15
Views: 754
Posted By quorneng

dasintex Correct It is a good idea to extract...

dasintex
Correct
It is a good idea to extract and tape off one of the red pins as shown in the earlier post. It means it is then simple to re use the ESC in a single engine job later if the worst...
01-23-2020, 11:46 AM
Replies: 15
Views: 754
Posted By quorneng

dasintex The need to remove the red wire...

dasintex
The need to remove the red wire connection on one ESC depends on the type of the battery eliminator circuit (BEC) in the ESC.
If is is a linear BEC (it simply maintains a constant voltage...
01-22-2020, 11:20 AM
Replies: 5
Views: 543
Posted By quorneng

dasintex Correct again. Measuring the amps...

dasintex
Correct again.
Measuring the amps before the Y lead gives you the maximum current that is drawn from the battery. As a very rough guide for a prop plane it is wise to keep the max amps to...
01-22-2020, 02:08 AM
Replies: 5
Views: 543
Posted By quorneng

dasintex That is exactly the type of Watt meter...

dasintex
That is exactly the type of Watt meter you will need. The maximum amps capability you need does depend on the size of the electric motor(s) in your plane but that particular one should more...
01-19-2020, 10:44 PM
Replies: 4
Views: 175
Posted By quorneng

dasintex No its the other way round. kV means...

dasintex
No its the other way round.
kV means the motor revs per volt applied so a 950 kV motor will turn off load at battery volts x 950. For example with a 3s LiPo that would be 11.1 x 950 =...
01-19-2020, 12:23 AM
Replies: 10
Views: 1,173
Posted By quorneng

Posted in error

Posted in error
01-15-2020, 11:11 PM
Replies: 2
Views: 630
Posted By quorneng

If both steel and carbon are supplied I would be...

If both steel and carbon are supplied I would be amazed if the assembly instructions did not explain why they are there.
I understand the Timber battery space is pretty restricted so a steel rod...
01-09-2020, 12:47 AM
Replies: 7
Views: 1,968
Posted By quorneng

foxch0844 Chellie's recommendation look good. ...

foxch0844
Chellie's recommendation look good.
The Berkley Fairchild 24 has a light weight construction (5.8 oz complete incl the rubber motor!) so it is best to keep the weight as an electric RC...
01-04-2020, 02:06 PM
Replies: 41
Views: 2,287
Posted By quorneng

Madspadder "Took most of the dihedral out of...

Madspadder
"Took most of the dihedral out of the wings...."
Of course the full size had no dihedral at all. Its 'tip to tip' box spars were built in one piece.
01-01-2020, 05:37 PM
Replies: 5
Views: 539
Posted By quorneng

Whether its folding prop or not if you want an...

Whether its folding prop or not if you want an electric motor to stop at a particular position it will require some sort of mechanical stop.
Most model powered gliders have a slim and almost...
01-01-2020, 02:13 AM
Replies: 5
Views: 539
Posted By quorneng

As far as I am aware the only option is...

As far as I am aware the only option is incorporate some kind of mechanical stop that can only operate on very low or no power. .
Of course a single cylinder IC motor always stops in the same...
Forum: ParkFlyers
12-31-2019, 11:17 PM
Replies: 160
Views: 65,265
Posted By quorneng

This post is just to point out I am still flying...

This post is just to point out I am still flying (actually yesterday) my somewhat modified Wing Dragon. If the conditions are a bit 'difficult' (mid winter and very muddy) it is my 'go to' plane...
12-20-2019, 11:21 AM
Replies: 10
Views: 1,173
Posted By quorneng

Just to elaborate a bit on Ron's point an ESC...

Just to elaborate a bit on Ron's point an ESC throttles the current by chopping the supply on and off. Reducing the throttle just means the off period is longer than the on. This means each...
12-17-2019, 11:42 PM
Replies: 10
Views: 1,173
Posted By quorneng

RONALDO_UK Its not just the Kv of the motor...

RONALDO_UK
Its not just the Kv of the motor alone that determines the amps it draws but also it size (diameter and length). What motor is it? Is the ESC rated for the amps required.
In addition the...
11-22-2019, 10:12 PM
Replies: 20
Views: 759
Posted By quorneng

I think you might be right about actually flying....

I think you might be right about actually flying. It is hard to imagine those elevons could generate sufficient force to resist the motor torque and then there is the question of roll stability or...
11-22-2019, 03:30 PM
Replies: 20
Views: 759
Posted By quorneng

With that configuration you will most likely...

With that configuration you will most likely struggle flying off water unless it sits very nose high when stationary and you have the thrust to weight to get 'on the plane' almost instantly....
11-20-2019, 10:29 PM
Replies: 20
Views: 759
Posted By quorneng

The elevators and indeed the whole tail has very...

The elevators and indeed the whole tail has very limited moment arm.
IMHO it needs to be much further (2 or 3 times!) back. This would not only increase their effectiveness but reduce their...
Forum: Foamies
11-17-2019, 03:17 PM
Replies: 98
Views: 8,794
Posted By quorneng

aainthu Well done! Was there a reason why you...

aainthu
Well done!
Was there a reason why you cut the power after just a few seconds into each flight?
I appreciate the understandable nerves that the plane was flying away from you but my own...
Showing results 1 to 30 of 500
 


 
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