bert baker
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Posts posted by bert baker
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Weston UK do a range of RCV Marine engines. four stroke's
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Hmm well, at a guess I say you are probably overheating the Aeroplane engine as it is not designed to be used in the way you have.
You need to blow cold air through the engine cooling fins, electric fan or a fan of some sorts ducting helps
There are Marine four strokes available. but you will need pumps and a means of cooling the water
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Hmm, I thought that may be the problem.
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Forget the tissues
Oh boy I need new glasses I thought the one on the bonnet was a weird verrrry large thing
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I purchased one and it seams great so far and did come with a spare blade.
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I'm going to wait for the big TN, P51D.
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Looks great Jez,
Do you have to worry about not forgetting to make left and right handed brackets.
Bert
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Cor and to think some fly for fun
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Posted by John Privett on 14/12/2014 00:20:36:
So if the club say you need to take an A test using an i/c model then that is what you must do. Though how they deal with somebody who takes an A test elsewhere and can't prove what model they used to take it, I don't know!
Have done A&B achievements. The name and style of plane was noted down on the B cert paperwork, not sure about A as it was long ago. The info may be accessible through the BMFA if things get that Heavy.
Most clubs that I have been to do require you to demonstrate that you are as good as you say.
Could a person capable of changing spark plugs in their car engine change the injectors on a diesel. it is still a car four wheels and an engine.
The BMFA achievements are just that achievements not Law, a bit of fun when you are ready to take the challenge.
I think it only proper that you can safely demonstrate you know what you are doing if it can potentially harm others or yourself.
Edited By bert baker on 14/12/2014 10:39:57
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Yep it's been done,
On the flat twin they fire alternatively, As both pistons go in and out at same time and only one is on the induction cycle, hey presto useful energy
I had a mate a few years back that put a belt driven fan inside an exhaust to suck out rather than blow in, it was flight proven and increased the power output.
Overhead cams were not market leaders. never had one but always fancied one.
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Posted by Kevin Wilson on 12/12/2014 09:22:11:
An old saying... never ascribe to malice what can be more readily explained by stupidity
A newer saying,
Artificial intelligence is no match for natural born stupidity
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Good for you just go for it and have fun, best of all if a bit wears out you can remake it.
The internet is full of how too's.
No doubt the new kids will 3D scan the engines and get a 3D printer to print the thing in wax and lost wax cast them
Best wishes and looking forward to seeing a build blog,
Bert
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LOL,,, If it is sucking fuel into the crank case does in make it a 31/2 stroke, I think the whole idea is to burn off bypassed oil.
Cor blimey does this mean I can't run a four stroke inverted anymore.
Will I have to wait for the level of oil in the engine to reach the breather, or perhaps move the breather to the rocker cover, or should I store the plane inverted.
Well for me I have run four strokes of all makes and sizes for many years, they all get air tool oil flooded into them when I have purchased them, spun them over by hand a few times with plug out and left to drain.
Then fit them in plane inverted mostly some side mounted, burn 10% nitro in them all, and if they are really lucky I give them a pre season lube through the breather, other than that they are just used and dumped in shed until the next outing, Some of them are the early 1983 ish OS FS90's and still going strong, without need of repairs or tinkering.
It does make for an interesting subject though, why not mount the carb to the bottom crank case with a reed valve inbetween and blow the fuel mix to the top inlet valve, two to one blown on a flat twin horizontal opposed.
Hmm I wonder what time the doctors opens
Edited By bert baker on 12/12/2014 23:36:16
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Hmm yes but this is ebay, your trust has to be admired.
Edited By bert baker on 12/12/2014 09:29:58
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Feedback 1 enough said. and was that from his Nan
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Posted by PC.Vere on 11/12/2014 07:33:26:
My question is :- has anyone here ever attempted a build such as this? - if so, I would be happy to hear from you, re techniques used in the various operations and also any pitfalls which I am likely to encounter (i'm sure there will be a few!).
Well I would say yes a few have made their own,
I get the impression you will be fine, and able to work through any problems.
The trick will be working out the sequence of machining without the need to make many jigs etc.
It's nice to be able to make your own for fun, I have spent loads on mills drills and lathes, if i totaled up the cost of it all, it sure would have worked out cheaper to have stuff made for me.
One day I will get round to making the David Parker Vega twin four stroke and perhaps the Maltese Falcon too
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When I have had to similar work, I use a very fine/ thin razor saw with the spine reinforcement removed.
Hard to give a good awnser as I don't fully understand why you need to remove it.
Is it the Elevators or the Tail plane that need to be removed for repair.
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If I remenber it has a lug of pywood at the bottom of the fin, that goes down inbetween two of the tail ribs
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Just got back from my local Lidl.
Got a key board stand for plane to sit on and the Chineese knife. and some ball end Alan keys
Looked at the clamps but to big, ideal for house diy.
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The Veron Cardinal has been to date my most susesfull free flight plane.
Use the right metals for the engine B&Q alluminium is not a good idea.( Been there bent it chucked it)
Bicylce alluminium pedal cranks are worth a go.
Best place would be a metal scrap yard, you will probably find some old truck pistons that can be melted down.
There's loads of plans for engines all over the internet, and plenty of books to.
Good luck
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No I was giving the Rabbits and Moles a head start
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Just for a bit of fun, Ive got a shed full of saws scroll band and others,just a thought that came into my head.
One that I have never tried is a 12v mini jig saw Proxxon do them also in 240v
I did think of putting a chuck on the petrol stimmer so I could drill holes up the field without the hassle of recharging batteries.
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Should be ok with bigger wheels large foam ones, be carful with weight gain, and also recheck the c/g (possible nose heavy)
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Hmm looked a vid of the Hangar 9 moth and looks good but I think sprung undercarage is doubtful
OS FS70 tappet problem
in IC Engines
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Ah ha I see the problem, you need to speak to a car club, they will have more knowledge on this topic, I had never come across a four stroke car engine until now.
Edited By bert baker on 22/12/2014 09:31:11