Author Topic: Curtiss SBC-4 Helldiver, a One Wing Biplane  (Read 197 times)

Offline robunos

  • Can't afford the top wing of his biplanes...
Curtiss SBC-4 Helldiver, a One Wing Biplane
« on: January 14, 2021, 11:16:37 PM »

Okay . . .
Time for the next one !
This one's going to be the old Matchbox Curtiss SBC-4 Helldiver, and I'm going to one of the old pre-war colourful paint schemes, with the yellow wings.
Now this aeroplane has one of those weird retractable undercarriages, where the wheels pull up into the fuselage, leaving the outsides exposed. I want a fixed gear, so the first job is to fill in all the wheel wells.
The kit fuselage parts have a partial wheel well moulded in, so that has to go. I used a combination of knives, files, and a Dremel to do this. Here's the job in progress, from the inside,





and the outside.





Next step was to add a piece of 10 thou plastic card, as a backing for the infill.





I cut four discs of 10 thou, to fill where the wheel would go . . .





and glued them in place. It turned out I needed another disc each side to build up to the required level . . .





Once these had dried down, I attached the kit undercarriage doors, and filled any remaining large gaps with scrap plastic. At this point I assembled the fuselage, and filled any remaining gaps





After trimming off any excess plastic, I filled with correcting fluid, and left that to dry.


That's All For Now, Stay Tuned . . .


cheers,
Robin.
By the pricking of my thumbs, Something Whiff-y this way comes . . .

Offline robunos

  • Can't afford the top wing of his biplanes...
Re: Curtiss SBC-4 Helldiver, a One Wing Biplane
« Reply #1 on: January 21, 2021, 03:37:09 AM »

Okay, another update . . .
While all the filling on the fuselage was drying, I turned to the engine. Like a lot of kits of this age, the engine is of the 'half cylinders on a flat plate' type. These can look good when done right, but a dry-fit with the cowling showed that the engine came right to the front, so some improvement was needed. After thinking about it, I drilled small holes where the 'cylinders' met the 'crankcase',





then using a combination of fine saw and knife, removed the plastic between the 'cylinders'. I then finished the job with a fine file.





When painted, and with the inside of the cowling painted black, this will be much improved.
The same could not be said of the wings. When cut in half, and offered up to the fuselage, the look was not right. So, off I went to the 'Spare Wings Box'TM, and came back with the surplus wing from my OWB Grumman Duck build.





A rough try looked much better, so I went with them. I split them in two, and trimmed the roots to match the fuselage. Still looking good. There were large holes in the underside, where the cabane struts fitted. I thought I still had the parts, but couldn't find them, so I used plastic card.





I was going to fair off the leading edge piece, then realised that left as it was, it would be perfect for the undercarriage design I was going to use, so I didn't . . .
That's All For Now, Stay Tuned . . .


cheers,
Robin.
By the pricking of my thumbs, Something Whiff-y this way comes . . .

Offline apophenia

  • Patterns? What patterns?
Re: Curtiss SBC-4 Helldiver, a One Wing Biplane
« Reply #2 on: January 22, 2021, 03:33:53 AM »
Some nifty surgery there. So, your 'HellDuck' will be low-winged?
"... blac to gebeddan; bleda gedreosaț, wynna gewitaț, wera geswicaț"

Offline robunos

  • Can't afford the top wing of his biplanes...
Re: Curtiss SBC-4 Helldiver, a One Wing Biplane
« Reply #3 on: January 22, 2021, 06:20:58 AM »
Yes, it will, I've had the pencil and paper out tonight, doodling out the shapes for the undercarriage . . .  ;)


cheers,
Robin.
By the pricking of my thumbs, Something Whiff-y this way comes . . .