Topic: IL2 Shturmovik Build

  Chaps,
          Is there much interest in having this for an online build?.....the 80" Doug Marsh plan...Just Engines have e-mailed me today, to say that the "internal" type exhaust is on it"s way...I have a kit cut out for myself ready to start...and will hopefully be gluing early next week...


....power will be an irvine 150...with the fuel tank moved rearwards, and a pump installed.....Denni"s [Matrock]....looks superb.....will be a lot of work....but...what a plane!!

  Cliff   8)    ?

YES PLEASE.

Do you have to ask   

You know we want it 

Cliff do you ever stop building   and have time of for flying ? 


Like your style mate    keep on gluing   I will watch em all 

Shane

    Ohhhh go on then! 

Is it done yet?

Hows it fly?

Whats next Cliff?

 

Hi Cliff,

Always interested in other peoples building - where do you think I steal most of my building tips from?

TTFN,
Neil

Go for it Cliff!

Go right ahead! What else am I supposed to look at when I'm at work?? 

 Thanks chaps...plenty of interest then  ...ok...few pics before a bit of glue is used...

         Here"s the basic kit....1/8 built up formers....1/8 main ribs.....with 1/16 ply canopy parts, I just cut out the bare essentials needed to get started...the root ribs [1/4 sheet]...are over 18" long  ...but..look at the size of the firewall !


...post arrived today....first was my bundle of Cyparis strip...6mm by 18mm...longerons, and spars....


..then this little gem..the custom fabricated silencer from J/Engines.....at first glance, looks to be the bizz....thing is.
..I might be able to do away with moving the fuel tank rearward, and, if I cut somewher near the red lines shown, will be able to drop the silencer a little, allowing the possible use of a large, Dubro type tank......If I"m able to this...would be perfect 



  ...dying to get her started....but will have to wait till next week....thanks very much for your interest in seeing her come to life..will keep my finger out as much as possible

   Cliff   

mmmmm chrome.  Have you bought the part lazer cut or have you done them yourself

Cliff,

This is great news, one of my future projects also.....

Well done buddy...

Rock and Roll............

Andy

That muffler looks superb mate............V V nice.

I reckon if you cut the tubes as marked, you can drop the can and get a tank in above the muffler body......................removing the need for that 'pump' you mentioned................much better, simpler, less to go wrong.

................you can crack on and cut me a kit of parts for the 120" version of the same plan if you want 

Phil

Brid.................having been in Cliff's workshop, I can tell you they have only just got electricity over there in Ireland....................'Laser Cutting'...............don't be silly man, he's a craftsman, he probably doesn't even know what one is !!.....................he'll use his bare hands and a spoon to fashion his parts from solid oak 

hi big guy

 what happened to the neuport

 I've started to cut out bits for the SE5a

see you soon   

 Hi Chaps,
                Yes, the arrival of the silencer has spurred me on well, specially if I can do without the pump issue...

    Phil...craftsman?...me?..... ....few years to go yet to match the stuff you put out  ....

   Bridlington...just used tracing paper / pen...and a scalpel / bench sander....cheap and cheerful yes, but can be managed over a couple of days if you keep focused.....if it"s good enough for Brian taylor.. 8) ?

     I guess the big appeal about the Shturmovik, is it"s sheer aggresiveness...you know excatly what it"s for when you see it....someone said that it"s a thing with Russian warbirds....take the American Apache, and the Russian Hind choppers....the Apache uses stealth to sneak up on it"s target...the Hind just comes in low blasting left, right and centre!!

  Andy....yes...the Nieuport will be built...will catch up with you asap....anyway...still got the DVII to rip ya apart!! 

    Cliff 

      Right chaps...as promised, finger is now out.....but, as you know, i work shifts...so instead of a "nightly" update...it will be more of a 1-2 weekly affair...with days off concentrated building.....also, I"m going to try and improve my finishing / detailing...[ie..make it better than the last project]...so might be a little bit longer to complete....but we"ll se how it goes 
    With the undercarriage to save up for...I"ll start with the fuse...there is a main longeron..1/4 by 3/4 hardwood, right along the full length of the model.....Cyparis will help keep the weight down....also...I"m going to build it "top half first"...and add the stabilizer to this, along with a bit of planking before the basic top half will be lifted from the board...


  Now...so that I can free my workbench up while the build goes on...I"ve went to B+Q, and got a length of Conti-board....this has been further strengthened, by a strip of 1" by 3/4" along the edges....to keep it straight and true....will need this for the HE111 later in the year anyway...


    I need the stabilizer ready to fit to the fuse.....time to build one....symetrical section, so I"m including "tabs" on the botom of the riblets,

.....maybe it"s possible to see the shaded part which will be cut off, once the top sheeting [1/16"]...has been added...
  First little problem already!!....the centre rib..and first either side appear to be slightly higher than the rest...dunno what / why this is....but will certainly cause problems when sheeting....will continue anyway...and see what happens.....Dennis...did you notice this at all???


     Cliff   
 

Hi Cliff.
Nice to see he build underway, well done.
As far as I remember ( Which may not be that much , over 50 now ! ) I cut the stab ribs in half and built the stab flat on the building board, then sheeted the top half, turned it over and built the lower half directly on top. Does that sound plausable ?
If R1 and 2 were over large I never gave it a second thought , just planed them down to a fair taper from root to tip before sheeting. I did build in as hardwood spar though for extra strength as its as big as some sport model wings.
Photos may (or may not ) help.









Not trying to pinch your build thread here Cliff .  Interesting that everyone finds a slightly different way to build from plans. I guess thats why a first time plan build is a bit of a milestone in the learning process. Finding solutions to the parts that the plan can`t tell you about, and no instruction booklet to guide you.
No trouble to a man of your stature though. Always happy to help;
Regards, Dennis

 Hi Dennis..
        .I"m glad to have you advising / giving me your support as I trundle along  ....it is strange how some people go at a plan in slightly different directions etc.....as long as it ends up the same!....couple more pics of this morning"s work.....[the stabilizers finished].....so onto the fuse 

   The main cyparis longerons [1/4" by 3/4"]...have been trimmed to allow the stabilizer to sit comfy  ....then the rear length has been sprayed slightly with water / amonia mix...then it"s held in place with small blocks pinned to each side..


  next...I"ve sliced all formers except the firewall in half..and cynoed in place.....with the everything tighly held down, a dead straight fuse is the only possible outcome...there"s also an additional length of balsa strip  behind the longerons..


 .. then the 1/4" sheet doublers....this really firms things up....mix of PVA / Cyno used here....I"ve set the stab. in place to give a bit of reference......firewall will hang over the end of the board...but going to get some planking done to strengthen the whole assembly up...


    Cliff   

 

Blimey.............that was fast !

Cliff..................it looks like there is a 'break' in the main fuz longerons, around the rear edge of the cockpit ??.....................if I'm right, how have you done this joint ? The ends to be joined appear 'square' (butt joint ?) in the pic showing the rear fuz structure, rather than a scarf joint of some kind.

Phil

  Hi phil.
    ..yes...simple Butt join...but. ..remember...there"s a balsa strip [same size as the Cyparis strip] running right along from the firewall to where the doubler ends....plus the doubler is glued along the top edge of the joint, plus the whole lot is planked over with 1/8"...I"ll probably have an overlap  of some sort in the inside as well.....?

 Cliff 

      Quick double check on that butt join!..[in red].....it is in a bad place..right at the rear of the wing...so...will re-strengthen with some internal ply strip,..[in black]... once the fuse is lifeted off the board...

 thanks for heads-up Phil 

    Cliff

Hi Cliff,
Great progress. Dont forget to get some sleep between the night shifts and the building !
Like Phil I`m curious about the joint in the main Cyparis longeron.
I built a sort of ladder frame out of 1/4" by 3/4" balsa over the plan and then glued full length Cyparis and balsa laminate longerons to the outside. More than one way to skin a Sturmi though !
I do like the top half " Topflite " style mod though.









More tomorrow ?
Regards, Dennis.

Cliff.

The 'location' of that joint was what I was aiming at............REALLY bad place, right at the TE of the wing & canopy where the fuz doesn't have massive depth, and will take considerable loads, especially if you 'bounce' a landing and clatter the tail off the deck in a kangaroo arrival 

Reinforcing the joint as you show will help, and I agree the balsa doublers etc also help, but balsa splits easily is my concern....................

I'm probably just being picky, but having had 'joints' bashed into me from the age of 10 by my 'wood work teacher' Dad, I always try and 'scarf' such a joint, a simple butt is mechanically very poor in a load bearing application such as this..............some of the longerons on the Skyraider and B26 (bigger models I agree) have a scarf joint running over at least 6", so giving maximum gluing area to the joint............this can be further reinforced by thin 1/64" ply plates on the inside running a good 4/6" either side of the scarf.

Basically, the further you can spread the loads, the better, so make the added internal ply reinforcement as long as possible, 1/16" ply will be ample..............

Phil

well done Cliff.....another fantasic build ....dig the exhaust...very nice...great subject...keep it coming

look forward to the finishing....

dave

     I think this is the direct result of getting out of bed too early!!..brain was just not awake yet. ...but will be sorted ok...might even up the ply to 1/8"....good job ya spotted it Phil..

   Dennis...two different ways of going for it!!...hopefully the wings will be similar!!...

   Dave..thanks...what are you building at the minute!!


  Cliff

      Right chaps...as promised, finger is now out.....but, as you know, i work shifts...so instead of a "nightly" update...it will be more of a 1-2 weekly affair...with days off concentrated building.....also, I"m going to try and improve my finishing / detailing...[ie..make it better than the last project]...so might be a little bit longer to complete....but we"ll se how it goes 
    With the undercarriage to save up for...I"ll start with the fuse...there is a main longeron..1/4 by 3/4 hardwood, right along the full length of the model.....Cyparis will help keep the weight down....also...I"m going to build it "top half first"...and add the stabilizer to this, along with a bit of planking before the basic top half will be lifted from the board...


  Now...so that I can free my workbench up while the build goes on...I"ve went to B+Q, and got a length of Conti-board....this has been further strengthened, by a strip of 1" by 3/4" along the edges....to keep it straight and true....will need this for the HE111 later in the year anyway...


    I need the stabilizer ready to fit to the fuse.....time to build one....symetrical section, so I"m including "tabs" on the botom of the riblets,

.....maybe it"s possible to see the shaded part which will be cut off, once the top sheeting [1/16"]...has been added...
  First little problem already!!....the centre rib..and first either side appear to be slightly higher than the rest...dunno what / why this is....but will certainly cause problems when sheeting....will continue anyway...and see what happens.....Dennis...did you notice this at all???


     Cliff   
 

Hi Cliff, How do you stick pins in contiboard???
Stearman

     Hi Stearman....only wish I could  ...nope...the stabilizer was pinned to the door..I"ve 3 placed on top of each other for "standard" type building.....the conti-board just has the hardwood blocks pinned to it by 1" thin nails.

  Cliff

     Hi Stearman....only wish I could  ...nope...the stabilizer was pinned to the door..I"ve 3 placed on top of each other for "standard" type building.....the conti-board just has the hardwood blocks pinned to it by 1" thin nails.

  Cliff

Desperate Dan used to spit nails in
Stearman

   Ok Chaps, few more bits+bobs for you...

   The fin is just basic modelling, I"ve added a couple of small angle bits inat the root of the ribs..makes things easier!...[sheeted in 1/16].

 
    The stabilizer / fin, has now been epoxied in place, and I"m starting to get some 1/8 planking on there to get it all "tightened" up, before removal from the board...not concerned about the cockipt as yet, so overlapped the planking a little in this area..will trim later...


     Now, before I can plank in the rear starboard side of the stabilizer, I"m going to have to sort the rudder/ tail wheel connectors....this is what shows on the plan...a "triple" ball-joint set-up...


    I"ve been onto Dennis with this, to see if he done it a simpler way..[which he has, with tiller arms etc]...but..Friday night, and not a model shop open...but plenty of brass tubing..so had to see if I could do it this way!...In the end, ws easy!...and the whole asembly will be hidden below the planking...downside is, if the ball-link comes of...[on the rudder]...I"ll have to slice into the model to recitfy...but it should"nt be a problem  ...here is the rudder bar with gluing holes in approximate position..
 

   Cliff   

before you cover it up how about swapping to the other type of common ball link where a small bolt goes right through.
these unlike those balls don't come off.

great build

 Hi Cactus...
      .I"ve taken on board your suggestion, and had a good look at it again....with the snake now installed..I"ve been tugging / pulling at the connection at the rudder point....it really seems secure enough, as I need pliers to get it off, but good idea from yourself....would definately be better to anyone doing a follow-up build....here"s the snake installed, and secured at the positions where I"ll not be able to get at very shortly....


.....then on to the planking of the rear fuse..starting to look like an IL2 now 


  Cliff   

Cliff this reminds me of a quote from DNA 

The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair.

Sverrir, the last time I quoted that one it was adopted by a forum member as his signature - I even get a credit for it every time it is used

Dave

To bloomin' right, Dave Good quote (see below ) - especially true where model aeroplanes are concerned

TTFN,
Neil

Sverrir, the last time I quoted that one it was adopted by a forum member as his signature - I even get a credit for it every time it is used

Dave

 

To bloomin' right, Dave Good quote (see below ) - especially true where model aeroplanes are concerned

TTFN,
Neil

Aint it just? We know a thing or two about Mr. Adams over here, my girlfriend has recently received her MA for a thesis based on an analysis of Swedish and Finnish translations of his work Nothing like mixing business with pleasure.

Interruptions over, back to that nasty Soviet thing (I live in Finland, ever heard of the Winter War, or the Continuation war? )

Dave

I`ve heard of it Dave !
In fact I read an excellent book by a Finnish pilot called Eino Luukennen called "Fighter over Finland".
Left me full of admiration for the plucky Finns against those monster Soviets.
Seriously good read ( Listed by Amazon second hand ) and it inspired me to make a funfighter  Brewster Buffalo as the Finns seemed to be the only force that had much success with the much maligned Buff !

Sorry to pinch a few more inches of your thread Cliff.
Still watching with a feeling of "Deja vue ". Love the added " lightening " in the rudder. ( and everything else that you`r doing too ! )
Looking good.
Regards, Dennis

  Right"o then...just the one more pic [busy per usual :(]...but need to try and keep the thread up !
     The elevators, I"m doing it different from the plan, it calls for a sheeted rib structure....but, merely for speed and handyness, I"m opting for a 3/32 core..with riblets either surface...then planed to section..quick and neat...on the port elevator...you"ll see I"ve started to cyno in more scrap block for the torque rods and hinges etc....


      Cliff

    Back again...still at the tail,
    I"ve went as per plan, and used the brass tube method of elevator joiner...a little wary at first...but very impressed with the outcome!...a 3mm bolt, securedwith both nut, and solder, acts as the horn....simple, fast, and stong!..will definately be going this route again...the red lines indicate, where I"ll be drilling through the tube, and inserting some piano wire for extra torque...


  next..a shot of the tail group...getting pretty much like a Shturmovik now 



  next I moved to the cockpit area...this can be tricky..but only if you let it!....because I added more sheeting than neseccary, I cut out...as a whole piece..the rear horizontal trim [1/16 ply]..
.this was tacked in place..making doubly sure it was level...then, very carefully filling in with strips of scrap 1/8 balsa...


   once happy...I filled the whole area with lightweight filler...and left overnight to dry well out...then just sanded to section, and cut off the acces ply on top 


 
  Cliff   

 Chaps,
        What do you think of a 20 oz fuel tank for the Irvine 150?....big enough?..

      ..this is the tank in place..[I can juggle it up / down a little to suit the spray bar ok].......good fit....but how much run time might I expect ?..
   .would it be worth trying to install a small "header" tank in there somewhere?...like the chopper boys?


    I"m currently moving to and fro from nose  / tail....as I wait on a forked tail unit....but bear with me! 
 Cliff