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Member postings for mal brewer

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

Thread: 2012 Vintage Mass Build Chat Thread
24/11/2011 15:17:47
Posted by Sparks on 24/11/2011 10:43:32:
Yes Chris,
 
A couple of coats of dope on the balsa followed by sanding. Wet the silk under the tap, wring it out, lay it on the structure and apply full strength dope around the edges to attach the silk. Then a couple of coats of 50/50 dope/thinners all over to shrink. Then a few coats of PolyC to seal and finish off. Amazing how well the silk goes round the corners, as good as Solarfilm but with the added bonus of the dope fumes!
 
Cheers, Richard
 
Hi Sparks,or can I call you Richard,
very nice looking model.Interesting to see you have used wet silk to cover it.I have used exactly the same method of covering on many occasions,but never with silk,I've always used nylon.However,nylon requires a pretty hefty airframe,as the shrinkage rate is pretty impressive,and will twist any slightly weak airframe into some very interesting shapes! I'm assuming silk doesn't excert quite so much pressure on the model,and is suitable for the more delicate structure........................................Mal

24/11/2011 12:02:05
Posted by Danny Fenton on 23/11/2011 21:31:31:
I think a lot of these models probably fly better without us telling them which way to go. Like prodding a stable model with a stick
Cheers
Danny

Hi, a standard joke of the era was of two modellers watching a model in flight..............one says to the other ' that model seems very unstable', the other modeller replies,'no,I think it's radio controlled'............................................Mal.

Thread: Vintage Roll Call for Greenacres
23/11/2011 13:53:32

Put me on the list please BEB........................plan-built 'Deacon'.................cheers,Mal
Thread: Mam'selle.......
22/11/2011 13:42:16
Posted by Steve Hargreaves on 22/11/2011 11:05:37:
In retrospect I think I might have been a little too hasty here......
 
I think different nuts could be allowed IF that was all you had in stock, it was late on a Saturday night & you were unable to bicycle to the model shop AND you had a competition on the Sunday......

Different nuts ? When we used to build whilst still a schoolboy (cue violins playing softly) different nuts would have been a luxury.We couldn't afford,or find 4 nuts and bolts,we used to use 2 set diagonally in the engine bearers (cue Monty Pythons 4 Yorkshiremen).If we didn't have a drill,we used to burn the holes in the beares with a red-hot piece of wire.................ahhh,the good old days.....................Mal

22/11/2011 13:34:16

I'm sure it will,Danny.................................Mal

Edited By mal brewer on 22/11/2011 13:34:50

22/11/2011 13:06:41


Here's a couple of shots of the servo installation.The servos are mounted on a ply/balsa tray,together with the switch,and the r/x is fitted below the tray.I used wire snakes in plastic tube to couple the servos with the tail surfaces.....................
 


and don't forget,it won't fly without one of these...........................
 

 
.................................................cheers,Mal
22/11/2011 12:52:21

Hi Chris,
you're quite correct,Litespan is said to be fuelproof,but we've found with both litespan and solartex they seem to get 'ingrained' with handling etc,and soon look grubby. Hey,but I suppose that would be an instant 'vintage' look.The fuselage in sprayed with 2-pack car enamel...................cheers,Mal
22/11/2011 12:33:11

Right, let's see if I can post some more pics..............................
 
below is cowled engine,a Mills .75.......................
 

top cowl off, showing tinplate tank.............................

rest of cowl removed, rest of fuel tank....................

you can probably just about see the 4xaaa power supply attached to the lower engin bearer..............here's a better picture of it....................
 

and again............................................

hope that helps a little, I'll post some of the servo installation soon....................Mal
22/11/2011 12:20:35

Hi Danny,
I'm going to try and post a couple of pictures of my 'Mam'selle', hopefully they will come out ok.My camera isn't impressing me that much,I might even have to splash out on a better one.........(poor workman etc etc)....................here goes...................

picture ,obviously ,of the wing,showing effect of fuel-proofed 'litespan............
 
 

 

Hmmmmmmmm, worked that time,I'll post some of the engine and servo installation in a short while..........................Mal
Thread: DC Engine Identification please
22/11/2011 00:03:39

Hi,
yes it's definitely a Merlin 0.76cc. This is a standard Merlin,they also did a 'Super Merlin', which had red anodised cylinder finning,and a red anodised spinner .Apart from this anodising,it appeared to be identical to a standard Merlin. Later Merlins were fitted with an 'easystart' spring starter...........................Mal

Edited By mal brewer on 22/11/2011 00:04:09

Thread: 2012 Vintage Mass Build - What are you building?
21/11/2011 21:20:07

Almost certain it will be a plan built 'Deacon',designed by the great Phil Smith,and kitted by Veron,powered by a Boddo Mills 1.3
.........................Mal
Thread: Mam'selle.......
21/11/2011 20:06:27
Posted by Danny Fenton on 20/11/2011 23:22:44:
 

Mal, am I right in assuming you have attached the tailplane etc already, and are going to cover them in situ? Doesn't that make it awkward?

Cheers
Danny
Hi Danny,
yes, you're quite right,I did attach the tailsurfaces before covering the model,and it did indeed make it a little awkward to cover.It did make it a bit easier to fair the fin into the fuselage,so it's a bit of a 'swings and roundabouts' situation.I think either way is correct,or possibly incorrect..................cheers,Mal.
20/11/2011 21:04:13

Hi Danny,
thanks for the compliment.What I have done with the stringers on my model is to continue them right to the tailpost,they will all fit in,tho' it is a bit tight,but nothing to worry about.I notice you say you are going to trim the fuselage to allow a bit of down elevator.I have done mine slightly differently in that I have used a two-piece elevator,joined with a torque rod (posh name for a bit of wire),also I've glued the tail surfaces to the fuselage.Incidently,I meant to mention the other day that 'Litespan' does look like coloured Modelspan tissue,but only certain colours appear translucent.I think the colours are red,orange,yellow.I think all the other colours appear as 'solid' colours,also while it does shrink with heat,it shrinks nowhere near as much as Solarfilm or similar colours.Hope this is of some help to you,,,,,,,,,,,,,,cheers,Mal.
20/11/2011 20:36:44

Bit of a technical hitch there...................but they have eventually came through.....................don't think I'll ever be a computer expert.!............Mal.
Thread: Remember them?
18/11/2011 08:10:25

Hi all,
does anybody remember buying diesel fuel in a glass bottle,...............I think it may have been sold by 'E D', (electronic developments) to complement their range of engines................................Mal.
 
p.s. if I remember correctly,it cost about 3/6 (about 17 pence) a bottle in 1956-1957
Thread: Mam'selle.......
17/11/2011 11:56:04

Hi Danny,
hope I can help you a little with your 'Mams'elle'.I covered mine in Litespan,using Balsaloc as an adhesive.After covering,it is heat shrunk,carefully,as the heat softens the Balsaloc adhesive.I then sprayed a couple of coats of well-thinned clear dope onto the litespan,then colour trim in 2-pack paint,then finished the clear-doped sections,i.e. the wings,tailplane etc,with 2-pack clear ,as used by the car trade over metallic finishes.All this may not be nessarsary,as Litespan is claimed to be fuel-proof,but that's the way I did it.The (2) servos were fitted behind the ply former the holds the undercarriage,about level with the crutch,with the rx below them.For the rx power pack,I used a 4xaaa flat pack,strapped below the lower engine bearer,inside the engine cowl.I know that's not ideal,but the model was pretty tail-heavy by this stage.All-up weight is 14.9 oz,or 430 gm,I'm sure it could be made a little lighter with a simpler finish.So there it is,it may be a lesson what not to do,but it may be of some help to you.I'll post a couple of picture later,that's another hassle for me!.................cheers,Mal.
09/11/2011 12:25:00
Posted by Danny Fenton on 09/11/2011 00:32:12:
Not sure when the Mamselle was first published, might help to fulfil the model flying dress code if I knew, anybody know?
 
 
Hi Danny,
'mam'selle' was published as a free plan in 'aeromodeller' Christmas issue either 1956 or 1957,not quite sure which year,I built one from the plan while I was still at school,which was Merlin powered,just completed another,with a Boddo Mills 75 in........................cheers,Mal.
Thread: Small Diesels
12/09/2011 22:59:59
Posted by Myron Beaumont on 12/09/2011 20:48:57:
I really don't remember the "vibromatic" engine afore-mentioned.Tell me more!

The Frog 150 'Vibromatic' was a rear intake 1.5 cc diesel.The induction system consisted of a spring-loaded petal valve,which opened or closed according to crankcase pressure,in a similar manner to a reed valve.I never owned such an engine,but they seemed to get quite good 'write-ups' in the modelling press.I can confirm the merlin was a good little engine,in fact,I still have one in a Vic Smeed designed Ballerina,and I recently bought one,in a control-line model,for £8 at a car boot sale..................Mal

Thread: OS46 Spinner Issue
29/08/2011 20:28:36
Hi Alan,
yes you're right,I too blew the picture up and could then see the flat in the prop-driver.Didn't see it earlier.So yes,it must be the shim washer ,or rather the lack of it,that's causing the problem..............................Mal.
29/08/2011 18:42:53
Hi again,
just checked an OS 46AX,and the crankshaft has two flat sections,the prop-driver ( the piece you are holding) should have two correspondig flats in the centre hole,which yours appears not to,and there is indeed a black washer fitted between the crankcase and the prop-driver.Hope this helps..........................Mal.
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