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Member postings for Steve Hargreaves - Moderator

Here is a list of all the postings Steve Hargreaves - Moderator has made in our forums. Click on a thread name to jump to the thread.

Thread: Laser Engines - Technical questions
26/06/2020 14:58:56
Posted by David Davis on 25/06/2020 07:22:38:

Jon I'd like to make a plea for the return of the Laser 45 or 50 even if it's just a limited batch.

One on Ebay just now DD...wink 2


Thread: Returning after a long time away
20/06/2020 12:48:47

Welcome to the forum Jim.....enjoy your new old hobby.....

Sadly Solarfilm are no longer with us so the film products & Balsa Loc are no longer available....

Thread: Lipo lead question
09/06/2020 13:01:09

IMHO the leads each perform a different function.....

A is the connection to the Tx

B is the balance lead/connector

C is for charging

The JST connector will probably handle up to about 5A max so can be used for fast charging...the white Molex connectors won't handle that sort of current.....1A max I would think....

Thread: Radio Queen.
03/06/2020 14:29:11

Sounds like a great project Ernst....we wish you well....

One of the UKs traditional kit suppliers Ben Buckle Vintage Kits offer a kit of the Radio Queen... **LINK**

And there is a copy of the plan to download from the Outerzone Plans Website alongside some details of another epic crossing.. **LINK**

Maybe these will be of use/interest thumbs up

Edited By Steve Hargreaves - Moderator on 03/06/2020 14:29:56

Thread: Poorly OS40 repair
27/05/2020 16:58:57

"As we are off down the rabbit hole on this i might ask one of the mods to start a new thread on the subject and move our posts given that its clearly a subject worth discussing."

As requested by Jon a new thread on Engine Care & storage is here **LINK** & all relevant posts moved there.

As the poorly OS40 is now mended & back where it belongs, in the air, I'll close this thread.

Thread: Recommendations for a Suitable Patternship for a rear exhaust OS Max 40 V.
19/05/2020 08:58:46

Might the RM Diamond fit the bill..... **LINK**

Nice simple build but the rear exhaust might mean a few modifications are required....wink 2

Thread: Sandbox
19/05/2020 08:53:55

Hi Piers....

You need to upload the video to YouTube first & then embed the video from YouTube.....there's a tutorial here **LINK**

HTHs thumbs up

Thread: If you like engines.........
13/05/2020 16:33:56

Amazing....did the engine actually run?

Thread: New to Electric Motors and Batteries
07/05/2020 18:27:30

Hi John & welcome to the forum & welcome back to your new/old hobby.... thumbs up

You will find so much has changed in the last 30 years it will become a new hobby.....

The Guillows Cessna looks an interesting project but I think you need to have a rethink....SD200s are more of a mini servo these days at 16g & you will probably find that 9g servos would be adequate for that model. Also the 4.8V battery pack is not needed....with electric models the ESC (electronic speed controller) usually incorporates a BEC or Battery Elimination Circuit that taps a small amount of power off the main flight battery to power the radio & servos.

Are there any good clubs in your area that you could visit (when allowed)? It might make sense to have a chat with a few experienced aeromodellers to understand how everything works in an electric model.

Alternatively if you look in the Electric Beginners section (**LINK**) you will find a lot of helpful threads to get you started. Have a read then ask lots of questions.....don't be shy...we were all beginners once...

Enjoy the forum....

Thread: New boiler installation
05/05/2020 10:53:17

That's an interesting thought Wingman.....such things are very much on my mind at the moment as I'm just about to do some work on my CH system (fit two new radiators) so I'm about to drain & refill my system. I've always used Sentinel products (X100 inhibitor) & this is used in a much lower concentration. Their recommendation is 1L of inhibitor to dose a typical system of up to 10 radiators.

My caravan has an Alde wet CH system & that uses car antifreeze (VW G13+ spec if you are interested) but I guess freezing is much more of an issue with caravans than the system in your house.

As I understand it the reason for the use of inhibitor is to reduce the reaction between the different metals used. A typical home CH system will have steel radiators, a cast iron heat exchanger (in older boilers...copper or stainless steel in newer boilers) & of course copper/brass in the pipework so quite a mixture & probably quite different to that found in a typical engine (not much copper in these...wink 2)

05/05/2020 08:42:41

Do you know what the "stuff" is FB3? Has he left a carton or a bottle?

Thread: Returning Novice
30/04/2020 17:45:39

Hi Cathal & welcome to the forum.....

We have to enjoy a bit of virtual flying these days & spend our time talking about it rather than doing it...thumbs up

Thread: OS 40 FS pre Surpass
24/04/2020 15:01:28

Best way is to upload the Video to YouTube & then embed it on this site...

Details here..... **LINK** thumbs up

Thread: If you like engines.........
09/04/2020 14:49:06

Just found the pics of Grahams Kawasaki.......




09/04/2020 14:22:56

He is the most amazing bloke....he built a bike for a friend of mine a few years ago....based on a Kawasaki KH250 (a three cylinder two stroke bike in case you were wondering) he grafted on a couple of extra cylinders to make a 400cc FIVE cylinder bike....

Simply amazing......

You'd think he would have a 5 axis CNC machine in his shed at least but no he uses the most basic of tools & works mainly from his head....

Some of his other work....




Thread: KK Spectre?
02/04/2020 17:25:08

Hi Terry & welcome to the forum....

Is it a full depth spar? Could it be that both the ribs & the spars are slotted & interlock....?

If the spar is slotted at the top & the rib slotted at the bottom the rib will slide over & into the spar whilst the spar slides over & into the rib. This creates a very solid joint

Thread: Flap / down elevator mix
02/04/2020 15:18:00

Surely the pitch up/pitch down with flaps is dependant on the wing position...?

With a high wing the flaps create extra drag above the CoG thus pitching the nose up.....

With a low wing the flaps create drag below the CoG thus pitching the nose down....

Thread: Old Model for old modeller
01/04/2020 16:13:08

There are a few older threads about the T180 including posts from a few people who have kits/plans.....

Pop T180 in the search box....thumbs up

Thread: Advice on motors
25/03/2020 09:48:11

Hi Al....I wonder if you are approaching this from slightly the wrong angle.....rather than look for an "equivalent to" electric motor maybe look at what benefits an electric motor could bring to the model. Electric motors produce their power in a completely different way to IC engines so it makes sense to try & harness some of those benefits.

A 40/50 sized glow engine will produce around 1 BHP whilst turning an 11x6 say at around 11,000 rpm (rough figures for illustrative purposes). For sure there are electric motors that will do exactly the same but is this what you want? Why not go for a larger, more scale sized prop....a three bladed prop even...there will be an electric motor that will do that too whilst still producing "the power of a 40 sized IC engine"

Remember that an electric power train needs to be considered as a whole taking into account the battery (number of cells, capacity, physical size etc.). No good finding a great motor if you then have to compromise on the battery size to get it to fit.

In a nutshell then what I am saying is don't just just look to swap like for like but consider how to power the model from scratch & perhaps do a bit of reading around the subject of electric power to understand the benefits (& indeed pitfalls) of using electrons instead of glow fuel to power your model.

Good luck....

Thread: IC Engine Bearings...
21/03/2020 22:44:48

No need for comments like that Stephen......

Play nicely or don't play at all.....

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