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Super Marauder FS

Peter MIller's latest design build blog

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Peter Miller11/02/2016 12:21:27
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9741 forum posts
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Back in the late 70s I designed a cntrol line stunter called Nebula. THis was a lovely model and great for windy weather. I once flew in a Novice stunt event and afterwards a judge asked me "Do you always fly a team racer in stunt?"

I then designed a smaller version for .19 size engines which was just as nice.

A few years ago I took the design lay out and designed a .25 powered R/C version. THis was fast. I have flown it in winds gusting up to 30 mph. It didn't half move going down wind on that day!!

Recently I have been feeling totally burnt out and lacking in inspiration. and then I tought tht maybe a larger model with a bigger, thicker wing would be nice as I find small fast jobs are a bit hard on these old eyes and fingers.

This is the history of Super Marauder FS.

Now on to the building. Nice and very simple because I am still lacking in much drive.

Peter Miller11/02/2016 18:34:01
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9741 forum posts
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The fuselage is very simple butthe cowling gets complicated

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The box is pretty standard but with 1/4" triangular stock on the edges

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The underside view Note cockpit floor. The tank is accessable when the cowl is removed.

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The nose is built with 1/2" sheet grafted onto the fuselage sides

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At the rear there is a 1/2" sheet tailplane platform. This is used to take the dowels that hold the fin on as we shall see.

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The sheet tailplane platform fitted.

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The fuselage with all the bits including the 1/4" sheet top.

Piers Bowlan11/02/2016 19:00:26
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1707 forum posts
41 photos

That looks super Peter - I like simple. I have just started building a Ballerina so I better get a move on as I am sure your Super Marauder plan will be published before my Ballerina is finished. What engine have you fitted?

Peter Miller11/02/2016 19:39:29
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9741 forum posts
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Actually I have another plan waiting t be published before this one so ypu shpould have plenty of time.

Engine is an OS FS52 Supass that I bought on Ebay but a 48 or any 52 would do nicely.

Peter Miller12/02/2016 19:31:07
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9741 forum posts
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The top fitted. The engine has been teporarily installed and the nose ring glued to the back of the spinner ready for shaping

marauder fs 009.jpgView of the underside of the nose before shaping.

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The nose has been shaped. In the final design the ply doubers will end at F-1, shaping them was a real pain in the derriere.

Peter Miller12/02/2016 19:36:27
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The fin is vertially just butt gued to the tailplane with very little support. This is a disaster waiting to happen.

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The tailplane is spot glued down and holes are drilled using an angle guide.

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1/4" dowels are glued into the fin and these go through the tailplane and that 1/2" sheet block under the tailplane.

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Which then seats firmly on the tailplane. There are two very small fairing blocks that just fair the fin into the spine.

Peter Miller13/02/2016 09:05:02
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9741 forum posts
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10 articles

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The cowling is built from parts cut from the fuselage sides. with a 1/4" sheet bottom, 1/8" liteply duct roof, and ply intake outlines. The two long 3 mm caphead screws hold the cowl on.

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In side view of the cowl with engine compartment and tank bay.The hard wood blocks just behind F-1 hold blind nuts for the cowl hold down screws. The two hardwood blocks in the cowl are drilled for the long cowl hold down screws

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This view shows the tank location and the cut away in the duct roof. to clear it.

I will have to arrange some shielding as it is possible that the hot air from the engine could make the fuel boil off. I have had this happen with a rear exhaust engine but that was hot. THe fuel boiled out of the vents in a C/L stunt tank in about three laps!!

A remote glowplug connector will be fitted in the side of the fuseage.

Peter Miller17/03/2016 09:34:42
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9741 forum posts
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Finally finished the Suoer Marauder. No wing pictures have been posted as they are almost the same as all my others.cheeky

The model is 58" span, nearly 600 sq in, weighs a mere 5lbs 4 ounces with a wing loaiding of 20 oz per sq. foot. Power is an OS FS 52 .

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Now all I need is a calm, sunny, warm SUnday to get the test flight and flying shots.

OH, and it only needed 2 1/2 ounces of lead in the tail to get the balance right.

Edited By Peter Miller on 17/03/2016 09:35:37

Colin Leighfield17/03/2016 10:05:50
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5715 forum posts
2359 photos

It's got a bit of the Chance-Vought Crusader/Corsair about it, looks fantastic Peter.

Bob Cotsford17/03/2016 10:09:36
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7732 forum posts
431 photos

Looks nice Peter, I immediately thought of the Spacehound era stunters with the short (by RC standards) tail moment and big chin inlet.

Peter Miller17/03/2016 10:45:43
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9741 forum posts
1152 photos
10 articles

Thanks for the kind remarks

As I said, originally the styling staged tout on my contolline stunters from the 70s. I have always thought of a Chnace Vought Corsair in the past I didn't think of it in this case.

I always fancied a Corsair with the wing tilt as an R/C model. Must do it one day.

Colin Leighfield17/03/2016 13:33:29
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5715 forum posts
2359 photos

That will certainly be a challenge, but why not?

Peter Miller11/04/2016 12:47:20
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9741 forum posts
1152 photos
10 articles

supar marauder flt 004 mod.jpgWell at last we got a decent day for test flying. I took some photos and fellow club member Michael Morris took more.

Here at=re the results.

 

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supar marauder flt 004 mod.jpg

Edited By Peter Miller on 11/04/2016 12:48:15

Peter Miller11/04/2016 12:51:44
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9741 forum posts
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The model was flown by myself and three other pilots who all liked it.

It is not too fast but will do all the aerobatics you want. Very smooth and spin recovery is instant, doesn't want to stall and certainly does not show any desire to drop a wing.

Jack Banner11/04/2016 15:07:44
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332 forum posts
43 photos

Looks great, I fancy it would look great with retracts too.

Peter Miller11/04/2016 15:10:34
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9741 forum posts
1152 photos
10 articles

Yes, I did consider that but couldn't find what I wanted. so I opted for the spats to look like drop tanks.

Tony Cook11/04/2016 19:54:49
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101 forum posts
89 photos

Very Nice Peter, new to forum after joining UKCAA, really enjoy the older stuff (must be a sign of getting older) do you have any problems with inverted FS installation? If so what do you do to remedy poor starting/idling?

Luther Oswalt11/04/2016 21:32:05
136 forum posts

That is really nice Peter, Looking forward to plans!

Leo

Peter Miller11/04/2016 21:46:01
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9741 forum posts
1152 photos
10 articles
Posted by Tony Cook on 11/04/2016 19:54:49:

Very Nice Peter, new to forum after joining UKCAA, really enjoy the older stuff (must be a sign of getting older) do you have any problems with inverted FS installation? If so what do you do to remedy poor starting/idling?

I don't have ANY problems with starting and a superb tick over just above stopping setting.

Plans will be sent in in a few weeks, juust got to inish the plans and write the text and I have other jobs to da before then. Anyway next month is my Peyret Maubouusin plans in RCM&E. Pronounced Payray Mahbooson. After that it is up to the Editor

kc10/08/2016 14:05:41
5820 forum posts
167 photos

The Super Marauder is one of the free plans in this months- September - issue of RCME. seems a good idea to buy a copy now for the winter building season.......

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