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Messing about with Mercos'

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jeff2wings11/02/2018 21:38:47
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662 forum posts
1495 photos

So finished the re-worked "retro" sparky ,just needs a good clean and bearings,think I need to buy them in bulk !laugh

Will run it on glow first to bed it in then try it petrol,well that is after I build an overly intricate and unnecessarily complicated test stand that is smiley

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Engine Doctor12/02/2018 15:47:05
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1927 forum posts
17 photos
Posted by jeff2wings on 10/02/2018 21:22:50:

Sorry E.D. can't help with that,need a case for a 61 myself ,can you not repair by welding ??

Thanks for looking. Yes welding might be an option. I have loads of other jobs to get n with so will wait a while in case I come across one.

Regards

Gordon Nicol13/02/2018 19:27:59
69 forum posts
Posted by SIMON CRAGG on 30/01/2018 01:40:00:

The Army used to have a team called the "MATS(A) team that flew Merco .61 powered models as targets on range days. Everything from small arms to main armament was usually fired at them. They were given a transit (ish) vehicle and filled it with engines (no exhausts), 13x6 blue plastic props, hundreds of idle bar glow plugs, VERY heavy models with a parachute built in to the cockpit, Skyleader radio gear (nice push/pull servos), fuel (straight + petrol mix!), plus all the other gubbins to support them. There were several teams. They travelled the World!. Even flying from ships when we had a navy. How do I know all this? I used to organise range days in BAOR many moons ago, and as a keen modeller the swaps and bartering that could be done would make your eyes water!.

I actually had two brand new MATS, and a handful of merco 61s . Mate and myself used to fly in Fallingbostel, and we had an expedition to the MATS team in Dortmund one day, A contribution was made to their "tea" fund and we were allowed access into the container unsupervised

I actually used the skyleader servos for years ( I had so many of them, and the engine mounts and props , something like 20 spinners even a couple of receivers, but they were 37.5 mhz so no use) , I still find the odd servo in the garage , which always go on Ebay . I had 4 mercos , so did my mate . The planes flew well I even had undercarriage fitted and a third servo working a bodged rudder. I actually threw them 10 years ago (I had them for about 20 years before ) but the damp in the old garage got under the veneer on the wings and it all lifted,

after my demob I built a RCMW solo , a great trainer which I flew many years and eventually sold to a chap at RAF Lyneham where my Daughter and her then husband were serving

I have been trying all day to find any photos of these MATS(A) but rarer than rocking horse poop!

J V R14/02/2018 18:17:18
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307 forum posts
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Jeff2wings PM sent

jeff2wings17/03/2018 21:35:19
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662 forum posts
1495 photos

Well I have finished the 49,think it looks o.k. (to what it looked like ) onto the 61's

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stu knowles17/03/2018 22:14:12
481 forum posts
37 photos

Interesting Mercos? This is a petrol conversion from 'back in the day' - although when that would have been I have no idea. I have been around modelling since about 1972 and I have a very vague recollection of Dunham Engineering adverts in the mags. It has a very crude set of external points attached to the front and I believe it to be unrun (No surprise there!)

Cuban817/03/2018 22:52:33
1893 forum posts
2 photos
A friend bought one of the Merco petrols when they were on sale IIRC about 25 or so years ago. I remember going with him back to the shop where he bought it and he said something like "after forty years of running model engines, this so and so has defeated me". The chap in the shop said "I'm not surprised" and gave him a full refund!
TartanMac17/03/2018 23:47:35
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218 forum posts
141 photos

Great thread this Jeff2wings and very nice job on the mercos. Did you use anything special to clean the case with ? I usually just use soap powder boiling water and an ultrasonic cleaner.

stu knowles18/03/2018 08:11:39
481 forum posts
37 photos

I can't imagine that a naked spark at the front of the engine did a world of good to the 27/35 meg radio either.

jeff2wings24/03/2018 22:21:21
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662 forum posts
1495 photos

Some interesting replies ! I vaguely remember Skyleader running an add with those target drones,think one of the mags did a feature on it ?? you can tell an "MOD" spec merco as they had no drilling for a silencer and a bit less well finished on the out side.

Stu,Dunham eng. used to make rep engines ,such as the Orwick 64,Hornet 60 ,1/2 size DC Wildcat etc .Nice MERCO btw (better on glow though )

Here's Mercos factory effort

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It's on e-bay at the mo (not mine btw) nice compact ignition unit (not laugh) !

TM after years of faffing about with different boil n' bake methods,I got a blasting unit

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before

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and after ,one on left is unused.

Tom Sharp 224/03/2018 23:14:56
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2818 forum posts
15 photos

Saw in an old edition of RCME a twin Merco. Anyone own one of these?

jeff2wings25/03/2018 21:25:12
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662 forum posts
1495 photos
never seen or heard one in the flesh sad
Well,it runs ! surprise
Must restore my one
jeff2wings25/03/2018 22:36:49
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662 forum posts
1495 photos

So the next one for rebuild will need a bit more work as at some time in it's life it's been face planted into mother earth with the result that it has a bent shaft and conrod sad Well a few deft blows with a (soft face) hammer sorted out the crank,but the conrod needed a bit more finesse !

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yep,that's had a thump !

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made some close fitting gauge pins,it looks worse than it is,very carefully bent straight.After that just a simple re-assemble

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