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Member postings for Peter Garsden

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

Thread: Jet Provost 1.5metre Andy Blackburn PSS Plan
11/08/2019 13:53:28

Sorry Phil, already sold.

10/08/2019 10:09:53

Ah - no fuselage sides - the wood list didn't take that into account, so we will probably need more wood.

10/08/2019 07:22:55

All good thoughts.

It is 1/8 scale - would have helped to read the plan!

Well the HUGE woodpack has arrived from Balsa Cabin. It includes the tailplane and fin, also underneath and top sheeting, and as the fuselage is more than 4 inches wide one needs to butt joint 2 sheets together hence the large number of sheets of 3/8".

I am thinking of putting some lightening holes maybe in formers, the taiilplane, and maybe the fin. Don't want to offend our designer, but there is a lot of wood, and the JP is famous for flying in marginal conditions. We have gone up a thickness for the wing skins to 3/32", and I remember Matt building a very light version as he always does when we did the mass build (and we used to see him regularly!)20190810_065530.jpg

I am itching to make a start but I am limited without the SLEC pack which will arrive soon.

Phil, does the woodpack include the battery box?

Edited By Peter Garsden on 10/08/2019 07:24:00

08/08/2019 17:56:58

Sorry chaps, stand corrected.

08/08/2019 08:02:32

Are you planning to do any pilots Andy? If so count me in also. Will suitable reimburse you obviously.

I checked the plan last night and I am not sure if full size seats will fit, that is unless somehow we avoid the battery box. Maybe, not sure.

Certainly the distance from the top of cockpit to the top of the battery box may allow the pilot to be seated but not sure.

You have the scale above.

07/08/2019 21:42:49
Posted by Andy Meade on 07/08/2019 16:01:39:

Ejector seats and instrument panel modelled up last night yes

progress 1.jpg

Surely the MTBF for the switches are 10,000's of times greater than a slope model's lifespan? I'd wager we aren't even breaking into the 100's of hours use per year.

Edited By Andy Meade on 07/08/2019 16:04:14

Can I order one please? I think I worked out we are working on 1:7.17 Scale - roughly

07/08/2019 18:32:00
Posted by Andy Blackburn on 07/08/2019 17:08:54:
Posted by Andy Meade on 07/08/2019 16:01:39:

...

Surely the MTBF for the switches are 10,000's of times greater than a slope model's lifespan? I'd wager we aren't even breaking into the 100's of hours use per year.

Are they, though? If the MTBF of a hall switch is of a similar order of magnitude to an ordinary switch then there probably isn't a problem, but all I'm saying is that I've not seen any actual evidence.

Another good point well made my very learned friend (not the use of the superlative!). I started using the electronic switch after trying to create a scale type switch with a piece of wire threaded through a normal mounted switch inside the fuselage in my BAE Hawk which Tim Mackie is now refurbishing after a crash!

  1. I launched the model in a 35mph wind up Leek.
  2. The lift wasn't good because it isn't a good slope.
  3. The lack of elevator response produced an unintended landing.
  4. I picked it up and bunged it off again only to discover it had switched itself off! The mechanism had not engaged properly with the switch and it was "on the cusp".
  5. The plane was blown back and hit the ground with a crack. The fuselage broke in 2 - you can read more on my Hawk blog

Before anyone says anything I know this was not the switch but the mechanism, but in fear of the Scale Police I started using the electronic switches which I use on my mouldies without failure. You can buy them from T9 here - **LINK** They are more expensive, admittedly, in fact they have risen from £20 to £28 recently.

07/08/2019 18:20:24
Posted by Andy Meade on 07/08/2019 11:32:53:

Pete - 9 sheets of 3/8" x 4" surprise that's quite a bit. Do you know if that's for the tip tanks? If so, I'll drop that off my list as I'll be 3D printing them for lightness.

Good point well made my learned friend, and a point also made by Steve the Scottish Lothario (not sure of spelling). The sheets are for:-

  1. Fin
  2. Tailplane
  3. Underneath and top sheeting for Fuselage - it is so wide that one width of 4 inches won't cover it.
  4. Not sure if I calculated for Tip Tanks - maybe actually - yes I think so

06/08/2019 18:30:31

I have the rare privilege to be a Pioneer (didn't they used to make matches). Like all brave Pioneers I will take all the risks and let you chaps benefit from my fool hardy bravery. Whilst size isn't everything, my mother always told me that it is not the measurement from the ground to the top of your head that counts (my grandfather and all his brothers were under 5 foot tall but made up for it in their argumentative behaviour) but the distance from your eyebrows to the top of your head, so there!

My balsa order is on its way from the Balsa Cabin and so are the plans. Thanks to Andy for putting the measurements on the plan top left corner so I could check scale. They had to be reprinted by Vintage Models. I tried to buy some wood from our local Model Shop in Macclesfield, Cheshire Models but sadly it has gone the way of all other models shops. So I am planning to make the lower wing sheeting to await the parts from SLEC.

I have had a look at the plans Andy, and can't see any errors anywhere, mind you they only reveal themselves when you start building IMHO.

The version at the top of the page is the colourway I am going for in that my previous version was silver with luminous orange trim. Steve has bought it. Hopefully he will give it some much needed TLC.

03/08/2019 13:05:18

Sorry about the oddity with the wing spars - it was my internal note to say that each wing spar measures 27".

Have also been looking into the wire and tube. The wire is 12 swg and you will be looking for a brass tube with an internal id of 5 swg

02/08/2019 22:52:28

Can a moderator delete the duplicates please?

02/08/2019 22:48:58

Jet Provost 1.5metre Version

Wood List

3/8 x 3/8 x 2 Leading Edge x 36"

3/16 x 3/8 Wing Spars 2 off x 36” (each one 27"

3/32” x 4” – 12 sheets medium

3/32 x 3” – 1 sheet medium

3/8 x 4” x 9 sheets Light

3/16 x 4"x 1 sheet medium

½ x 3" x 2 sheets light

1” Triangular x 5

¾” x 4" x 3 Light

1/8” x 3" x 2 sheet

3/16 x ½ Spruce x 36” x 2

2.5mm wire

6mm id brass tube

1 x Elevator Snake

4 Channel Receiver

3 Hitec HS85mg Servos

1 x 2000mah Eneloop Battery

I Halls Electronic Switch

2 x small Aileron Horns

Edited By Peter Garsden on 02/08/2019 22:49:55

02/08/2019 22:48:57

Jet Provost 1.5metre Version

Wood List

3/8 x 3/8 x 2 Leading Edge x 36"

3/16 x 3/8 Wing Spars 2 off x 36” (each one 27&rdquo

3/32” x 4” – 12 sheets medium

3/32 x 3” – 1 sheet medium

3/8 x 4” x 9 sheets Light

3/16 x 4"x 1 sheet medium

½ x 3" x 2 sheets light

1” Triangular x 5

¾” x 4" x 3 Light

1/8” x 3" x 2 sheet

3/16 x ½ Spruce x 36” x 2

2.5mm wire

6mm id brass tube

1 x Elevator Snake

4 Channel Receiver

3 Hitec HS85mg Servos

1 x 2000mah Eneloop Battery

I Halls Electronic Switch

2 x small Aileron Horns

02/08/2019 22:48:38

Jet Provost 1.5metre Version

Wood List

3/8 x 3/8 x 2 Leading Edge x 36"

3/16 x 3/8 Wing Spars 2 off x 36” (each one 27&rdquo

3/32” x 4” – 12 sheets medium

3/32 x 3” – 1 sheet medium

3/8 x 4” x 9 sheets Light

3/16 x 4"x 1 sheet medium

½ x 3" x 2 sheets light

1” Triangular x 5

¾” x 4" x 3 Light

1/8” x 3" x 2 sheet

3/16 x ½ Spruce x 36” x 2

2.5mm wire

6mm id brass tube

1 x Elevator Snake

4 Channel Receiver

3 Hitec HS85mg Servos

1 x 2000mah Eneloop Battery

I Halls Electronic Switch

2 x small Aileron Horns

02/08/2019 22:48:22

So Phil has organised a short wood pack for 12 of us which is great via SLEC. I have ordered one. He has volunteered to do a plug for the canopy which is also great. I have ordered some plans from Vintage Models of Buxton. Good job Any has put a scale on the side because they have been reprinted to the correct scale - good idea Andy.I have put a wood list together (one does not get the fin or tailplane because of the wood thickness being unsuitable for laser cutting. Here it is

02/08/2019 22:40:27

Well this project all started when Phil, who flies his smaller 39 inch JP all the time said how great it would be to fly a larger version which wasn't quite as twitchy as the small one.

My JP has had so much airtime and crashes that it is starting to look a bit tired. It was only my 2nd PSS build and I have learned a lot since. For one, I think I am going to paint this time. My previous JP was trimmed in flourescent orange which has faded a lot in the sun. The pilots in the cockpit keep misting up - can't think why but they are both male! - and the canopy has been off and on about 6 times.

So I contacted Andy Blackburn whose designs are always ace and asked him if he could let me have some enlarged plans thinking he would just blow them up and that would be it. I would have to work out the rest - not so - Mr B is a man whose attention to detail is awesome and he could not do half a job.

So somewhere in the mix we ended up with an enlarged plan which Andy has redesigned, and offered to PSS to sell on their site! - Bigger result than I ever imagined. So BIG THANK YOU TO ANDY B.. Here is a link - https://www.pssaonline.co.uk/product-category/pssa/

This is what my old JP looks like - I will be selling it at a much reduced price if anyone is interested. Still flies very fast.

img_20150621_111429.jpg

 

Edited By Peter Garsden on 02/08/2019 22:57:09

02/08/2019 22:32:12

jet_provost_t.3a_gbvez_xm479_2.jpg

Thread: F86 "Gamma" Build
29/07/2019 08:17:43

Sounds interesting again. I am in for the build plan Phil and kit of parts. Incidentally chaps I should be starting a Jet Provost 1.5metre blog soon - not to distract of course as if I am not finished, I will start this one and side line the JP.

Thread: An Introduction to the PSSA 2020 Mass Build Project
29/07/2019 08:10:10

Sounds exciting. Lots more balsa bashing on its way. I second Philip's comment - a wood list and other parts needed saves a lot of time and effort.

Thread: PSSA Gliding Events 2019
03/07/2019 18:36:16

Great photos Andy, memorable weekend though I missed most of it obviously as I was asleep - nice place to be when you're tired.

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