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Member postings for Geoff Bradley

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

Thread: Lite Span
16/09/2018 22:37:44

Solarfilm are still trading selling off stock from a warehouse in Coppull, Lancashire.Google them.

Thread: Model identification help
30/03/2018 16:08:30

Thanks for the tip Jim but I've already ordered the plans elsewhere.

I'd be interested to see how she flies with th OS 60 Mike.....haven't decided what to power her with yet.

29/03/2018 18:52:43

The first of many 😬😜

29/03/2018 17:36:55

Spot on....childhood toy smiley

29/03/2018 16:56:07

Brilliant....plans as well smiley

Thanks a million Jeff, the challenge begins yes

29/03/2018 16:29:50

img_1928.jpgSeveral part finished models have been donated to our club and I fancy finishing this beauty. Can anyone please help with identification so that I can get it faithfully completed ?

Thread: Ferrite rings with Skyrc charger !
01/09/2016 08:19:57

Thanks Denis.......I'll put em in my bits and bobs box !

31/08/2016 20:01:01

Her's another pic Denis.

I'm aware of that Bravo but which cables...and what are the plastic bits for ?

image.skyrc

31/08/2016 19:01:44

image.jpgskyrc charger bits

31/08/2016 18:54:52

I've just bought a Skyrc D100 charger and am confused about the 2 ferrite rings and little plastic clips ! included in the box. I know very little about ferrite rings but would have thought one would have be attached to the mains supply cable if required and perhaps the other to the 12v supply....as for the two plastic clip ! I'm scratching my head.

Can anyone help....I should add that there is no mention of either of them in the handbook.

Thread: Prangster Problem!
24/03/2015 09:45:09

Aduncan.......I've noticed that the new replacement cowl has an extension to go aver the wing band pegs.....I'll make a couple and see if it makes a difference.

JVR.....I'm sure that I'm set up as you suggest but I'll double check.

Thanks for your advice chaps.

23/03/2015 20:21:14

Well....I set the plane up with a C of G at 60mm......it still wanted to nose up !

So I tried 55 mm and it still had a tendency to nose up !

A fellow flyer suggested packing the wings at the rear to give a negative incidence angle...so a 10mm packing was inserted and it flew well.

I removed a lot of the weight up front and flew again and it flew a treat.

I'm going to play around with the packing and try to get it to fly without all the extra up font weight.

It's not set up as the instruction manual but it flies a treat so the packing will stay put !

Edited By Geoff Bradley on 23/03/2015 20:31:32

23/03/2015 20:19:54

Well....I set the plane up with a C of G at 60mm......it still wanted to nose up !

So I tried 55 mm and it still had a tendency to nose up !

A fellow flyer suggested packing the wings at the rear to give a negative incidence angle...so a 10mm packing was inserted and it flew well.

I removed a lot of the weight up front and flew again and it flew a treat.

I'm going to play around with the packing and try to get it to fly without all the extra up font weight.

It's not set up as the instruction manual but it flies a treat so the packing will stay put !

16/02/2015 15:40:25

Thanks again for all your advice.

JVR.....I've also put a foam block to position the wing so I'm happy with that....once she's flying 'safely' I'll try the Thr - ele mix.

Paul...I'm happy that the wing is seating...6 strong bands.

Cuban8....I'm sure the incidence is ok..I projected a line parallel to the tail along the side of the fus and compared it to a chord line on the end wing section and they appear parallel. There is abt 5deg of downthrust.

Chuck Planes....I've measured the plane and entered the info to the C of G calculator...Using a Static Margin of 15% it says C of G should be 63mm

So..I'll set the C of G at 60 mm and give it another try.

Off on my holls this week for a couple of weeks so I'll post the result when I return.

16/02/2015 00:07:37

Thanks for the advice......I was hoping someone had the same problem !

I've checked the angle of incidence and it seems to be zero so I'll take some measurements tomorrow and use the calculator to work out the C of G. If that gives the same result as the handbook states I'll give it a try at 25 % and see how it goes.

Thanks again for all your help......fingers crossed ....

15/02/2015 17:06:41

Sorry..can't answer thet one ..it was windy and all I wanted to do was get it down in one piece.

I was hoping for some advice before I risked another flight !

15/02/2015 16:49:52

It's a second hand job but is in good condition and the wing incidence is around 2deg.

It was a nightmare to control in the glide and the down thrust is around 5 deg that's why I wondered if the instructions about C of G may be incorrect !

15/02/2015 16:05:16

I've recently bought a JP Prangster for a Winter Hack and it noses up very severely. Everything is set up as per the handbook with the C of G at 70 mm which is as recommended for a beginner. Has anyone had experience of a similar problem ?

I have noticed that the wing chord is not as stated in the handbook.....it states 52 inch span and 520 sq inch area which should give a chord of 10 inch but it actually measures 9.25 inches ! This would give a C of G of 59 mm at 25% of chord ! I considered increasing the down thrust but it already appears to be at around 5deg.

Any held will be gratefully accepted.

Thread: A Test Questions
29/04/2014 18:58:58

Thanks for those chaps.....Ernie you big tease !

I understand where you are coming from Budgie but can't fully agree. Whenever I have taken an exam the syllabus is given for that particular exam. The handbook is not a syllabus and contains lots of information that, as I understand it, is not pertinent to basic A test.

I asked for questions to give me assurance that I'd taken in what I'd read and from your questions I'm quite happy.....thanks very much.

28/04/2014 23:30:59

I'm about to take the A Test and have read the BMFA Handbook with great care. However, the information that I think is required to be known is spread all over the place. So...It would be brilliant if people who have taken the test would post the questions they had to answer....pretty please !

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