The plans were drawn up from the card model download that Lou provided,if ever there was a simple aeroplane then this has to be it,the lines are straight and bold in typical Farman fashion built by men of iron who truly believed in aviations future,we owe a lot to these true pioneers,just look at that open cockpit ! the wings are simple cantilever construction with a deep chord,the aerofoil is somewhat unusually flat with no doubt a versatile centre of pressure allowing passengers to be seated at various positions of their choice and not affect the centre of gravity too much,these were the days of luxury air travel and not many could afford to fly like todays cut price airlines in aluminium tubes ! real aeroplanes made of spruce,aluminium and fabric doped on,I would not like to glide this one in on a dead engine,the drag up front must have been awful,its a remarkable machine by any standards.
So to the model, the blanks have been cut out ready for shaping and sanding as can be seen here in the initial stages of construction.
Barry.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/TEMPLATES_FARMAN_F250.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FARMAN_F250_TRANSFER_THE_FUSELAGE_SHAPE_TO_THE_WOOD.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FARMAN_F250_BLANKS_LAID_OUT.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FARMAN_F250_BLANKS.JPG)
Way to go. A really sudden urge for the mid war types.
Lou
The radial engine construction is started by making a crankcase,I turned mine up and sliced it off ready to take the cylinders,these are made from an old knitting needle wrapped with auto wire,wrap it tightly then flood the whole thing with thin cyno and allow to flash off,when cured its very tough and holds the wire onto the knitting needle former nicely,next make a simple distance jig for cutting off the cylinders all you need for this is a simple 'L' shaped piece of scrap wood with a stop that measures the distance needed on all of the cylinders,simply lop them off with a razor saw,now for the fun part,pin the crankcase onto a board with a piece of polythene sheet between to stop it sticking to the bench,a pin pushes each cylinder towards the crankcase,with a pin drop thin cyno down each joint where the cylinders meet the crankcase,I will describe the detailing in the next sequence.
The blocks for the fuselage/wings have been profiled and the wing tapers marked and sanded to the required shape,run a pen line the full circumference of the wing outer as a guide on both sides whilst sanding,a useful tool here is one of those cheap flexible school rulers that wrap around the wing shape nicely whilst marking up,sold in supermarkets on the stationery aisle.
Barry.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FETTLING_THE_BLOCKS.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/WINDING_THE_CYLINDERS_WITH_WIRE.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/CRANKCASE_FOR_THE_RADIAL_ENGINE.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/CUTTING_CYLINDERS_TO_SIZE_NEEDED.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/LAYING_OUT_THE_CYLINDERS_AROUND_THE_CRANKCASE.JPG)
:o Wow.
I look forward to seeing what you'll build and what I can learn from you. You work fast!
The pushrods were made from bamboo obtained from one of those Chinese pictures you get in a dime/pound shop,there is enough material on them to last you for years,the rocker covers are made from cocktail sticks with one side sanded flat.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/RADIAL_ENGINE.JPG)
Started to make the propeller,here is the first stage in making the blank,keep the propeller on the membrane until the very last minute that way it is easier to handle such small items.
Barry.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/PROP_FARMAN_F250.JPG)
Love that engine.
Lou
Quote from: Balsabasher on November 05, 2013, 11:26:43 PM
The pushrods were made from bamboo obtained from one of those Chinese pictures you get in a dime/pound shop,there is enough material on them to last you for years,the rocker covers are made from cocktail sticks with one side sanded flat.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/RADIAL_ENGINE.JPG)
That's a really great engine, Barry, and I love the clever way you scratchbuilt it. I'll have to see how to adapt your technique to 1/144.
Thanks Highplanes,just adapt the material sizes to suit your scale,by using thinner wire say fuse wire which wraps readily you can achieve the same results on the cylinders,by breaking down the complexities of these radial engines you can work out the best way to build them,I always think centre crankcase first,then build the cylinders around that and adding the embellishments as you go along,for spark plugs a dab of PVA glue looks most effective when painted,also you can place dabs of PVA on the crankcase to represent the bolts around it,once painted with a mix of silver and black,with some dry brushed highlights to bring out the detail you would never know it was built from scrap bits and pieces.
Barry.
After Lous video uploads today I recorded some experimental ones on carving small propellers,let me know if they work from the links here connected to Photobucket.
I realise they are by no means perfect and I need to get my camera placed so that it is accessible and at a better height as I do not have a tripod or can see any connector for one on my camera ? in the old days all cameras had tripod threads but it appears not now,anyway working on more video demonstrations soon,let me know what you think so far ? here are four short clips demonstrating the carving of the propeller on the Farman F250.
http://s180.photobucket.com/user/UDAZONE/media/SANDINGPROPELLERWITHPERMAGRITTOOL.mp4.html?sort=3&o=0
http://s180.photobucket.com/user/UDAZONE/media/PROPELLEROFFEREDUPTOTHEFARMANF250.mp4.html?sort=3&o=1
http://s180.photobucket.com/user/UDAZONE/media/CARVINGTHEREAROFTHEPROPELLER.mp4.html?sort=3&o=2
http://s180.photobucket.com/user/UDAZONE/media/CARVINGPROPELLRS.mp4.html?sort=3&o=3
Barry.
Well Done Barry! I heard the classical music in the background as well. I usually have music playing or old radio shows. Keep the videos coming.
Peter
Tuned to Class FM all of the time Peter,would not work without it,yes there will be more video's as I learn more about how to do them and the best way possible.
Barry.
Nice work Barry. May I suggest that we also place these in the tip section.
Lou
Yes please do so Lou,next time I make another propeller I will do another better improved video,transfer them please I do not know how to do that ?
Barry.
I will do so. I want to sort out how I will lay them out.
Lou
Time to carve the big wing on the Farman F250,the distinctive aerofoil was first marked out where the centre of pressure finishes then a line marked the full length of the wingspan,another line denoted where the wings section flattens out and then onto the carving.
If ever there was a boxy aeroplane then this is the one,it looks as if the designers just wanted to use as little curved lines as possible and get on with the building ! Farman designs were quite distinctive beasts at the best of times and this one is no exception,its certainly belt and braces.
Barry.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/DSCF4842.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/DSCF4843.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/DSCF4844.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/DSCF4845.JPG)
The wheel legs are very substantial as are the wheels,everything on this aeroplane is belt and braces,fairings were fashioned and angled then glued into place,main undercarriage legs were made from brass tube sunk into the wings then joined to the fairings,finally the wheels were fitted onto the pre bent axles.
Barry.
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FARMAN_F250_UNDERCARRIAGE.JPG)
(http://smm.solidmodelmemories.net/Gallery/albums/userpics/10005/FARMAN_F250_UC_LOWER.JPG)
Everything you do is wonderful and this Farman is of the same quality. You have how many models on the go right now?
Lou
Lou I have 10 models currently coming together,I find that way then I can do a bit on one,let the glue dry and onto the next then do some sanding,looks like a lot of final finishing so these may be shelved until its more suitable to dope and paint,I want to finish the Pawnee to save holding up the other entries so may finish it in enamel or even acrylic hand painted.
Barry.
I only have 6 currently being worked on. I feel so under employed compared to you.
Lou
Lou I do not think our aircraft factories will ever be short of work with the projects we want to make.
Barry.
Quote from: Balsabasher on November 17, 2013, 10:01:06 PM
Time to carve the big wing on the Farman F250,the distinctive aerofoil was first marked out where the centre of pressure finishes then a line marked the full length of the wingspan,another line denoted where the wings section flattens out and then onto the carving.
Very nice work Barry. How did you figure out the shape of the aerofoil?
Jeremy
Jeremy its a typical early French aerofoil shape with the tip being almost flat section going either way mid aerofoil,this progresses towards a more conventional wing section towards the root,basically Clark-Y modified a bit flatter,I worked it out from that one actual photograph,at least it captures the character.
Barry.
Quote from: Balsabasher on November 25, 2013, 11:38:37 PM
Jeremy its a typical early French aerofoil shape with the tip being almost flat section going either way mid aerofoil,this progresses towards a more conventional wing section towards the root,basically Clark-Y modified a bit flatter,I worked it out from that one actual photograph,at least it captures the character.
Barry.
It looks really good/ When I get around to building my own, may I be bug you for guidance?
Sure Jeremy,it would be easy enough to sketch the shapes of the aerofoil to assist you with your very own model.
Got any more rare birds on your list of 'Want to build' for the future ? it was fun and a challenge in doing this one with added inspiration for others who may wish to build one.
Barry.
Quote from: Balsabasher on November 26, 2013, 11:49:07 AMGot any more rare birds on your list of 'Want to build' for the future ? it was fun and a challenge in doing this one with added inspiration for others who may wish to build one.
Well, I do have a list...
- Fokker F.II
- Fokker Universal
- Fokker T2
- Farman F.190
- Farman F.60
- Farman F.170 Jabiru
- Boeing 40
- Wright-VinFiz
- Handley Page W.8b i
- Vickers Vimy
- Mitsubishi Ki-57
- Junkers F.13
- Junkers G 24
- Junkers G 31
- Junkers Ju86Z
- Tupolev ANT-14 Pravda
- Plage & Laskiewicz Lubin R-XVIb
I'm sure there are more...but first, I have a DC-3 to finish :)
I will take a look at some of these as potential solid models,I once built the Kanalin bomber with its eliptical wings,it was mounted on a pole above my workshop and one evening the winds lifted it straight upwards and it was never seen again ? someone would have a Kanalin bomber in their garden ! see http://www.hoax-slayer.com/russian-K7-heavy-bomber.shtml for this impressive piece of aviation history.
Barry.