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Search: Posts Made By: quorneng
Forum: Beginners Today, 02:37 AM
Replies: 17
Views: 272
Posted By quorneng
There is nothing stopping you from simply...

There is nothing stopping you from simply resetting your charger and continuing for another 120 minutes.
It might be worth doing this (under supervision) to see if the batteries do ever balance.
If...
Forum: Scratch and Kit Built Aircraft 01-29-2015, 09:44 PM
Replies: 3
Views: 106
Posted By quorneng
JPF That looks very nice and probably rather a...

JPF
That looks very nice and probably rather a better scale outline than the Jetex plan I am using.
As with all the Vampire/Venom the inlet geometry is rather poor for an EDF but then the full size...
Forum: Scratch and Kit Built Aircraft 01-29-2015, 04:57 PM
Replies: 3
Views: 106
Posted By quorneng
25" DH Vampire from a Jetex plan

Although the Canberra is not yet flying properly the current UK weather precludes virtually all flying, even Manchester International Airport so a nice Vampire!

The original plan was from Jetex to...
Forum: Scratch and Kit Built Aircraft 01-26-2015, 12:32 PM
Replies: 72
Views: 1,829
Posted By quorneng
As I feared the paint and the shiny finish have...

As I feared the paint and the shiny finish have moved the CofG rearward so it needed 0.3oz (4% increase) of nose weight to even bring it forward to 30% chord.
I did manage a short maiden (sorry no...
Forum: Hi-Performance and Sailplanes 01-24-2015, 05:10 PM
Replies: 8
Views: 263
Posted By quorneng
62 monk62 I fly all my V tails and deltas as...

62 monk62
I fly all my V tails and deltas as 'bank and yank' so I don't use a rudder at all.
I found that on my DX6i the transmitter mixing option is poor as it only moves the servo 50% when just...
Forum: Electric Ducted Fan Jets 01-23-2015, 11:38 PM
Replies: 13
Views: 341
Posted By quorneng
At last complete and painted. 179320 A few...

At last complete and painted.
179320
A few minor differences from the original but nothing significant except it now has a clear acrylic spray overall which makes it very slippery and virtually...
Forum: Scratch and Kit Built Aircraft 01-23-2015, 02:33 AM
Replies: 72
Views: 1,829
Posted By quorneng
Painting always seems to take a long time but it...

Painting always seems to take a long time but it is now virtually finished.
179314
The paint and gloss finish (well at least it isn't matt!) have added quite a bit of weight, 0.4oz (12g) or about...
Forum: Electric Ducted Fan Jets 01-20-2015, 10:05 PM
Replies: 13
Views: 341
Posted By quorneng
The FD 2 is now restored to its full length. ...

The FD 2 is now restored to its full length.
179303
Still some sanding and filling to do.
Then make the battery hatch.
Nearly there.
Forum: Scratch and Kit Built Aircraft 01-20-2015, 12:16 AM
Replies: 72
Views: 1,829
Posted By quorneng
Now complete with all the tissue covering and the...

Now complete with all the tissue covering and the ailerons connected up.
179272
The weather is still not suitable so I might as well paint it.
I will use this nice simple 2 colour scheme.
179273...
Forum: Scratch and Kit Built Aircraft 01-17-2015, 02:15 AM
Replies: 20
Views: 586
Posted By quorneng
Well done! I find it amazing that such a shape...

Well done!
I find it amazing that such a shape not only flies but very well too!
That sort of landing speed would scare the **** out of me!
Brilliant.
Forum: Scratch and Kit Built Aircraft 01-16-2015, 02:25 PM
Replies: 72
Views: 1,829
Posted By quorneng
I now have the replacement servo and 2 flight...

I now have the replacement servo and 2 flight batteries so the Canberra is back on the bench.
Should not take too long to complete but at the moment the weather is ensuring there is absolutely no...
Forum: Electric Ducted Fan Jets 01-16-2015, 01:16 AM
Replies: 13
Views: 341
Posted By quorneng
Permanently joining two stressed skin structures...

Permanently joining two stressed skin structures together is remarkably easy (in theory) as you just joint the skins together. There is no other structure!
The problem is ensuring the substantial...
Forum: Electric Ducted Fan Jets 01-13-2015, 11:55 PM
Replies: 13
Views: 341
Posted By quorneng
Before the LH planking restricts access too much...

Before the LH planking restricts access too much the battery compartment is added.
179153
This has to be a load bearing structure to restore the loss of fuselage stiffness resulting from the...
Forum: Electric Ducted Fan Jets 01-12-2015, 08:54 PM
Replies: 13
Views: 341
Posted By quorneng
With temporary keels in place the formers for the...

With temporary keels in place the formers for the cockpit area of the fuselage are glued on.
179135
The planking gets under way.
179136
With sufficient of the planking in place it can be lifted...
Forum: Beginners 01-09-2015, 05:47 PM
Replies: 257
Views: 34,475
Posted By quorneng
AEARJ To say the torque requirements has no...

AEARJ
To say the torque requirements has no direct relationship to planes weight is simplifying things a bit. On the other hand the planes wing loading does have a direct bearing on the control...
Forum: Beginners 01-09-2015, 02:29 PM
Replies: 257
Views: 34,475
Posted By quorneng
Much has been made about the stall current of...

Much has been made about the stall current of servos.
As an electric motor a servo draws a current virtually proportional to its load so should a servo ever reach its stall current under anything...
Forum: Scratch and Kit Built Aircraft 01-08-2015, 06:48 PM
Replies: 5
Views: 173
Posted By quorneng
The earlier straight wing Supermarine Attacker...

The earlier straight wing Supermarine Attacker was a jet tail dragger, 182 made and it went into service with the Royal Navy.
A jet tail dragger was not so much of a problem for the Navy and the...
Forum: Electric Ducted Fan Jets 01-08-2015, 03:17 PM
Replies: 13
Views: 341
Posted By quorneng
Chellie I dont think the problem was a lack of...

Chellie
I dont think the problem was a lack of elevator power (the elevons are actually quite generous) but simply an un-commanded dive from level flight!

The air intakes completed.
179089...
Forum: Scratch and Kit Built Aircraft 01-08-2015, 03:03 PM
Replies: 5
Views: 173
Posted By quorneng
Bill That is indeed a nice elegant subject and...

Bill
That is indeed a nice elegant subject and pretty compact too.
I have found V tails work fine with simple bank and yank.
About the only tricky bit is getting the spar round the EDF duct with...
Forum: Electric Ducted Fan Jets 01-07-2015, 03:21 PM
Replies: 13
Views: 341
Posted By quorneng
A bit further. It gets easier to work on it...

A bit further.
It gets easier to work on it progresses as the structure becomes more rigid.
179072
Just the air intakes themselves to complete.

Then that whole 'easy' nose section - yeah right!
Forum: Electric Ducted Fan Jets 01-07-2015, 03:14 PM
Replies: 74
Views: 836
Posted By quorneng
In some respects at a busy site being on 35Meg...

In some respects at a busy site being on 35Meg has an advantage - you tend to be the only one!
I do wonder if 2.4 is quite as good as claimed avoiding co-interference. After all if DSM2 was so good...
Forum: Electric Ducted Fan Jets 01-06-2015, 10:45 PM
Replies: 13
Views: 341
Posted By quorneng
It may not look much but the reconstruction has...

It may not look much but the reconstruction has at least started.
179044
The first former is the point where the new nose will be fixed on.

I am more relaxed about this repair now as by far the...
Forum: Electric Ducted Fan Jets 01-06-2015, 05:22 PM
Replies: 13
Views: 341
Posted By quorneng
A major repair to the Depron FD2

At the Ashbourne 'scale day' (one of the few occasions I fly in company) the FD2 suffered a major crash. A vertical dive in from 50 ft! :eek:
I still don't know what happened. It was half way though...
Forum: Scratch and Kit Built Aircraft 01-06-2015, 01:23 AM
Replies: 12
Views: 313
Posted By quorneng
Porcia83 I would be first to admit it worked...

Porcia83
I would be first to admit it worked far better than I ever anticipated. Indeed it was rather put together almost as last resort using left over bits from two other not very successful STOL...
Forum: Hi-Performance and Sailplanes 01-06-2015, 01:10 AM
Replies: 8
Views: 263
Posted By quorneng
From what I gather the Mode is user selectable on...

From what I gather the Mode is user selectable on the DX6 so you could use Mode 4 which has the elevator and rudder on the right stick, throttle and ailerons (which you wont use) on the left.

I...
Forum: Scratch and Kit Built Aircraft 01-05-2015, 04:33 PM
Replies: 72
Views: 1,829
Posted By quorneng
The last bit of the structure - the battery...

The last bit of the structure - the battery hatch.
179015
Just a couple of tiny magnets to add to hold it closed.

Until the replacement servo arrives this is as far as I can go so it is hung on...
Forum: Scratch and Kit Built Aircraft 01-05-2015, 04:27 PM
Replies: 17
Views: 321
Posted By quorneng
I would have thought with a laser cutter for...

I would have thought with a laser cutter for accuracy a puzzle joint or similar would work well on things like formers where the stresses are primarily in shear not in tension.
I suspect the same...
Forum: Scratch and Kit Built Aircraft 01-04-2015, 06:48 PM
Replies: 72
Views: 1,829
Posted By quorneng
With the micro JST connectors on the radio has...

With the micro JST connectors on the radio has been tested. The gyro effect on the control surfaces seems quite modest even with the gain turned right up but we shall see.
The battery box built into...
Forum: Hi-Performance and Sailplanes 01-04-2015, 06:07 PM
Replies: 8
Views: 263
Posted By quorneng
I suppose the first issue is: Is the V tail...

I suppose the first issue is:
Is the V tail mixing done mechanically in the glider from elevator and rudder servos on conventional channels or are you using a 'V tail mix' option on the transmitter...
Forum: Scratch and Kit Built Aircraft 01-02-2015, 09:16 PM
Replies: 5
Views: 198
Posted By quorneng
I absolutely hate adding ballast - it does...

I absolutely hate adding ballast - it does nothing for performance.
Moving things is the best solution.
If you cant move things far enough then adding battery weight is still better!
Showing results 1 to 30 of 500

 
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