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Member postings for John Lee

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

Thread: Flap / down elevator mix
02/04/2020 15:25:36
Posted by Jon - Laser Engines on 02/04/2020 14:05:35:

As i said before, it depends on the model. In my case i am flying big/heavy WWII fighters vs your example of a light weight foamy.

The 'light weight foamy' in this case (Carbon-Z Cessna 150) is 2.1 meter in span & weighs 10lbs! Not as big as your warbirds maybe but I think still reasonably substantial.

02/04/2020 13:19:20

I have a Carbon-Z C150 & have -10% (ie down elevator) at half flap and -22% at full flap with an offset of 30%.

The C150, both model & full size (I have a share & about 500hours in the full size) both have a strong pitch up tendency when you lower the flap.

And I disagree with Jon, half flap helps shorten the take off run considerably, the extra lift more than compensates for the extra drag.

It's a good fun model, you will enjoy it. If you haven't already done so check out Duncan McClure flying his demonstrating the A Test on the BMFA Achievement scheme video.

Thread: What Traders are still offering Mail Order? Services?
31/03/2020 19:46:08

Retromodeller, replied to email within a couple of minutes & order on its way.

Thread: LiPo storage
26/03/2020 13:15:01

Finished doing mine yesterday with a ISDT discharger. Don't forget to bring your Transmitters down also if they have Lithium batteries.

Thread: Email for a mac
09/03/2020 22:49:28

iCloud mail is certainly an option.

After a few switches I decided to buy my own domain & authenticated smtp access so my email (john@john******.com) is independent of my provider. The original host for my domain was taken over and is now who have been fine. I've only ever had one bit of technical difficulty & the response from their support was pretty much immediate with the issue sorted within a couple of hours. Total cost is about £4pm.

Thread: Is there a new breed of servo ?
09/03/2020 16:45:07

In case you are not aware there is a comprehensive spreadsheet of nearly 2,500 servos at Servo Database , you can sort the results by clicking on the column headings, filter the results & click through for individual specifications.

Thread: Isolating A Lipo.
08/03/2020 12:07:17

Simple 4mm plug into an embedded Jeti anti spark female, worked for several years with zero issues on my Sebart Angel.


Thread: CAA height restriction and BMFA exemption question
07/03/2020 09:55:32
Posted by Simon Chaddock on 06/03/2020 23:58:06:

I am not inferring anything but can anyone point out where the height restriction exemptions are mentioned on the CAA web site?

See CAA Website Model Aircraft Section.

"The CAA recognises that a 400ft height limitation can be difficult to achieve for some aspects of model flying and we also acknowledge the good historical safety record that model aircraft flying has when operated under the ‘best practice’ offered through established model flying associations. In recognition of this, permission to operate above 400ft, under certain defined circumstances, has been issued to a number of UK Model Aircraft Associations for use by their members. Please contact your association for further details of the conditions within this permission."

Edited By John Lee on 07/03/2020 09:56:25

Thread: Boulton Paul Balliol
04/03/2020 13:22:50

Bouton Paul were taken over by Dowty's in the 60's. Back in the early 70's I had a work placement from Uni with Dowty's & was able to get hold of detailed factory drawings of the Balliol as I always thought it would make a good model.

The design & construction were beyond me so the drawings were passed on to a Clubmate who already had several model designs published in the mags with a view to producing a control-line version. Alas the project came to nothing & with the passage of time all has now been lost.

I'd still think the design would lead to a nice scale replica though.

Thread: Eflite UMX Timber
02/03/2020 09:49:23

Yes they have combined the power & balance leads in one as I have illustrated above. That is why you need a special charging harness.

29/02/2020 09:28:38

I acquired one of these models from a Clubmate who was giving up & know your difficulty. The problem is the batteries, connectors & wiring are pretty much unique for a fixed wing model, although I believe the arrangement has been used by some Blade helicopters:


A conventional charger will not work without some adaption.

I think you have 3 options:

1) Rewire to 'conventional' plus & sockets

2) Purchase the dedicated charger you were looking for, E-Flite EFLUC1007, they are no longer in production but I have found one here

3) Make up an adaptor lead for charging as alluded to in your OP. That is what I did. You will need a 2S balance lead, I salvaged one from an old battery, a Mini Micro JST 2.0 PH 3-Pin connector, available from Amazon & elsewhere for pennies and the input plug from your charger, mine uses XT60. Here's what I ended up with:


Thread: spectrum updates via Mac
28/02/2020 09:30:59

Welcome John

On my Mac when I download the folder it appears in Finder as 5 .pdf instructions in various languages & 7 .svx audio files, again in various languages. I can't open the .svx files on my computer, but there is no need to do so.

Put your SD Card in your computer & then simply drag & drop the English audio file into your SD Card showing in Finder under Locations. Then eject the card & follow Spektrum's instructions for loading it into your transmitter.

Hope that helps.

Thread: Receiver mounts/clips
06/02/2020 15:40:42

Here you go Neil, I came across them for my Jeti but they also do HoTT mounts

Thread: Custom wiring
27/01/2020 21:43:42

T9 & Hyperflight

Thread: Best DV11 plan
09/01/2020 13:13:43

It's 50 odd years since I saw Norman Butcher's Fokker DVII win the Nationals, possibly the last time the event was won flying on reeds (pre-proportional radio). It certainly flew well & the plan was published in Radio Modeller, which Norman co-edited.

Plans are available on Outerzone & Sarik together with 3 magazine articles which give lots of info.

Thread: Beware using PayPal with HobbyKing (and maybe others)
11/12/2019 13:43:18

HobbyKing's FAQs:

Currency Conversion

HobbyKing sells product in USD only. Any foreign currency exchange rates on that are not USD are indicative only (you WILL be charged in USD regardless of the warehouse that you purchase from). provides the exchange rate tool as a guide only.

11/12/2019 09:59:36

Alan I think you will find when you get your credit card statement it will have been converted from US$ such as:

screenshot 2019-12-11 at 09.51.49.jpg

11/12/2019 09:47:57

.....and preferably use a credit card that does not load the foreign exchange transaction, such as Halifax Clarity or Revolut

Thread: Ebay sellers...
09/12/2019 20:00:52
Posted by Geoff Sleath on 09/12/2019 17:11:59:
Posted by John Lee on 09/12/2019 16:50:11:

The most unusual Super 60 I've ever seen. I'm not knocking the builder/seller in any way, looks a very nice job.

As you say definitely not a Super 60 but what is it? Excuse my ignorance but it looks like scale.

In the seller's other items voAAOSwga9d7N71">here he also has a Super 60 with flaps & ailerons, so he knows his stuff. I think it may well be just about the most modified Super 60 ever.

09/12/2019 16:50:11

The most unusual Super 60 I've ever seen. I'm not knocking the builder/seller in any way, looks a very nice job.

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