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Member postings for Geoff Gardiner

Here is a list of all the postings Geoff Gardiner has made in our forums. Click on a thread name to jump to the thread.

Thread: Oodalally - Build Log
14/07/2020 09:53:33

Hi Adrian,

Inkscape will import/open pdf files.

I then create a new layer for each part and I use the bezier tool to trace it.

It is helpfull to reduce the opacity of the pdf to about 30%, this makes it easier to see where you are drawing lines.

There is a useful tutorial here.

Hope that helps.

Thread: Tony Nijhuis Hawk - Build Log
13/07/2020 17:48:38

House renovations are still ongoing but I have managed to profile the leading edge of the wing and print off some pilots.

img_1414.jpg

img_1415.jpg

More later (as and when I can squeeze it in)...

P.S. How is yours coming along Dan?

Thread: Precedent Stampe 1/4 Scale
06/07/2020 22:07:26

Are they the same Oleos that Nick used - 169mm HobbyKing jobbies?

04/07/2020 16:29:10

Laser Jon,

If you are still tuned into this thread - what size Oleo's did you use for your sprung undercarriage?

Many thanks.

Geoff...

Thread: Geoff's Jet Provost - Build Log
24/06/2020 00:15:21

It's on the previous page Martin.

Final weight is 804g (28.3oz) all in.

I have been playing with the cheat hole to maximize the thrust.

1. 49x35mm hole (as per plan) gave 500g of thrust.

2. 49x45 hole gave 525g of thrust. with top hatch removed this increased to 590g

3.49x49 hole gave 540g of thrust with top hatch on.

I was using a 3s 2200mah 50c battery.

23/06/2020 18:29:44

Well, thought I would try for a maiden flight today as I had a flying buddie with me who was happy to hand launch for me.

The first few attempts were failures just straight to the ground.

I then took the top hatch off and after a couple of more attempts we managed to get it away and had a 3 minute flight whilst tinkering with the trim. It does get small very quickly!.

After that we had another half dozen or so attempts with a fresh battery - all failures.

Conclusion - needs a bit more work.

img_1396.jpg

img_1399.jpg

Thread: Oodalally - Build Log
15/06/2020 16:46:17

Hi Tim,

I have probably had about a dozen or so flights with mine. Mine needs to fly with a bit of up elevator trim so I may have not got the wing incidence quite correct (balance seems OK). That said, I am really enjoying flying this one.

I built it with a mind to practising for my 'B' cert at some point and I think it is well suited for the job.

Thread: New EDF Mini Jets- Jet Provost & Folland Gnat
15/06/2020 14:13:42

Still yet to maiden.

15/06/2020 14:13:10

My Provost was only giving me 300g of thrust and the motor cutting out above half throttle. It turned out to be a faulty (new) ESC.

Thread: Tony Nijhuis Hawk - Build Log
01/06/2020 20:12:18

I have been squeezing in little bits of work on the Hawk between decorating the house.

Trimmed the nose cone using the dremel.

img_1218.jpg

Finished cutting the servo hatch holes.

img_1219.jpg

img_1220.jpg

img_1221.jpg

More later...

Thread: S1581 Hawker Nimrod MkI
01/06/2020 17:06:44

That's looking rather splendid Danny.

Could you give me a pointer to the silver solder and flux you use (there seems to be different types available).

I have just acquired a SLEC Stampe kit which will need wires making up.

Geoff...

Thread: Laser cutting
30/05/2020 23:39:52

There are several mounts for the rotozip available to print on thingiverse

Thread: Tony Nijhuis Hawk - Build Log
30/05/2020 17:01:55

The build has slowed a bit lately due to having to do some 'house stuff', also been flying a couple of times.

I have got the flaps and ailerons done.

img_1216.jpg

img_1217.jpg

More later...

Thread: Laser cutting
30/05/2020 15:37:31

Doc

Have a look at my thread here.

For a home setup it is good to have something that can handle both laser (for balsa) and cnc (for ply).

Thread: Precedent Stampe 1/4 Scale
28/05/2020 14:09:44

I have just purchased a Slec Stampe kit off of a good flying chum of mine. I will not be starting the build for a while, as I have other things on the go, but have scanned through this thread and am now reading it properly.

I would like to build mine for electric power and would also like to split the wings somehow to make transport and storage easier.

Has anyone done either of these?

Any comments / advise would be gratefully received.

Thread: Tony Nijhuis Hawk - Build Log
28/05/2020 13:46:28

As I had scanned the plan when I produced the CNC files, I just flipped the wing and tile printed it in adobe reader.

22/05/2020 10:35:21

You are catching me up Dan.

I got the leading edge cut and glued on yesterday.

img_1177.jpg

img_1178.jpg

More later...

Thread: Oodalally - Build Log
19/05/2020 15:49:03

I may not be using all the throttle if it's too scary!

img_1156.jpg

19/05/2020 14:09:43

I put it on the CofG balancer this morning and, as the new motor is a bit heavier, I had to move the battery as far back as I could to achieve the correct CofG.

I then found that I could not get the prop adapter fully on as the shaft wasn't protruding enough out of the nose cone.

Usually with this scenario I would use spacers to move the motor forward but in this case that was not an option as it would throw out the CofG (I can't move the battery any further back).

In the end I opted for cutting 5mm off the front of the nose.

With the new motor and a 6200mah 4s battery I am getting:

11x7 Prop - 650W - 40A

12x6 Prop - 724W - 46A

18/05/2020 21:54:02

Tim, what power train are you using for yours?

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