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Search: Posts Made By: quorneng
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01-15-2020, 11:11 PM
Replies: 1
Views: 134
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: 1,826
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: 1,670
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: 221
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: 221
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: 64,773
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: 7
Views: 616
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: 7
Views: 616
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: 579
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: 579
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: 579
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: 8,194
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...
Forum: Foamies
11-13-2019, 01:40 AM
Replies: 98
Views: 8,194
Posted By quorneng

aaithu Glad you got it flying. Certainly...

aaithu
Glad you got it flying.
Certainly adding a servo is a useful way to add ballast but shortening the nose to account for the heavier motor would be a rather more efficient solution.
Just be...
11-10-2019, 11:13 AM
Replies: 15
Views: 1,046
Posted By quorneng

Looks good and flies well. well done It would...

Looks good and flies well. well done
It would make viewing easier if you either to use an option to turn the video through 90 degrees or hold the phone on its side!;)
11-06-2019, 12:37 PM
Replies: 4
Views: 924
Posted By quorneng

I know speed is very popular. I certainly would...

I know speed is very popular. I certainly would not want to hit by it.
With the current emphasis on UAS safety regulations one does wonder whether this sort of thing aggravates the perceived need...
11-03-2019, 09:30 PM
Replies: 3
Views: 1,443
Posted By quorneng

Can't help with any details but it appears R/N...

Can't help with any details but it appears R/N used to make a range of kits both scale and free flight. The kits seem to command good prices on the second hand 'vintage' market.
Forum: Foamies
10-28-2019, 11:57 AM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu That looks the business! 10 -15% of...

aaindthu
That looks the business!
10 -15% of the wing chord back from the leading edge sounds very nose heavy to me for a conventional wing although it can depend on the wing section.
The major...
10-24-2019, 02:31 PM
Replies: 26
Views: 2,313
Posted By quorneng

Fjc191 "With the items, previously outlined, is...

Fjc191
"With the items, previously outlined, is there a way to operate the EDF with a simple on/off switch?"

Not using an ESC and a brushless motor. They are simply not designed to do this.

If...
10-24-2019, 02:30 AM
Replies: 26
Views: 2,313
Posted By quorneng

fjc191 I think you will find it is not the...

fjc191
I think you will find it is not the servo tester but an ESC safety feature that is doing this. The ESC is programmed so you cannot accidentally have full power set when you connect the...
10-16-2019, 01:40 AM
Replies: 26
Views: 2,313
Posted By quorneng

fjc191 If the ESC has a battery eliminator...

fjc191
If the ESC has a battery eliminator circuit (BEC), most simple ones do, it also provides the power at a regulated 5V to work the servo tester.
In a radio control setup this BEC provides the...
Forum: Foamies
10-15-2019, 01:38 PM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu Those ailerons look good. I am not...

aaindthu
Those ailerons look good.
I am not sure you will actually save much weight using solid on the servo as their wires are a small diameter already. Much of the weight comes from the servp...
10-14-2019, 11:17 AM
Replies: 26
Views: 2,313
Posted By quorneng

fjc191 An EDF is designed to be as light and...

fjc191
An EDF is designed to be as light and powerful as possible to enable it to fly a plane.
If your project is ground based there are other more efficient ways to move air about unless that...
Forum: Foamies
10-14-2019, 01:43 AM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu That looks very professional. Balsa...

aaindthu
That looks very professional.
Balsa reinforced foam can be very effective. Light and strong as you have found. Good load test! ;-)
Forum: Beginners
10-12-2019, 03:12 PM
Replies: 5
Views: 2,341
Posted By quorneng

jangodog If its only a brake you want then what...

jangodog
If its only a brake you want then what is shown in the video is quite adequate but note the small flap is taken to 60? degrees although a full 90 would be better at creating lots of drag -...
Forum: Beginners
10-11-2019, 06:10 PM
Replies: 5
Views: 2,341
Posted By quorneng

jangodog If you are going to fit separate flaps...

jangodog
If you are going to fit separate flaps then they must be inboard of the ailerons for good aerodynamic reasons. Cut down the fuselage end of the aileron.
The Conscendo has quite big...
Forum: Foamies
10-03-2019, 12:10 AM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu Fair enough. Just make sure the tail...

aaindthu
Fair enough.
Just make sure the tail plane and fin are strong and rigid enough to support their relatively big control surfaces.
Remember the full size has the benefit of being an epoxy...
Forum: Foamies
10-02-2019, 01:03 PM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu That fuselage look very nice. ...

aaindthu
That fuselage look very nice.
Careful how you hollow out the rear fuselage. The foam you are using looks fairly weak so it will be a balance between strength and weight. Any weight saved...
Forum: Foamies
09-28-2019, 05:13 PM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu Most definitely keep building &...

aaindthu
Most definitely keep building & posting!
It is worth remembering that long wing span gliders do not respond to rudder only commands particularly fast, there is simply too much inertia,...
Forum: Foamies
09-26-2019, 11:09 AM
Replies: 98
Views: 8,194
Posted By quorneng

The important bit about the position of the CofG...

The important bit about the position of the CofG is how far back from the leading edge it is usually expressed as a % of the width of the wing.
25% is considered a safe point. It looks like yours is...
Forum: Foamies
09-25-2019, 02:02 PM
Replies: 98
Views: 8,194
Posted By quorneng

aaindthu Oh! Dear, bad luck. Any pictures of...

aaindthu
Oh! Dear, bad luck.
Any pictures of the new one?
I presume it has a motor.
Showing results 1 to 30 of 500
 


 
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