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Search: Posts Made By: alex5
Showing results 1 to 25 of 49
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Forum: Scratch Building, Aircraft Design, 3D/CAD
11-03-2018, 05:14 PM
Replies: 85
Views: 35,060
Posted By alex5

what I am seeing,is that the outboard aileron...

what I am seeing,is that the outboard aileron acts as a flap,in full down forflap, with the trim tab acting as aileron modifier,used to level the descent or ascent from right to left.We need a...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 04:29 PM
Replies: 85
Views: 35,060
Posted By alex5

Charles,that is an excellent summation by drawing...

Charles,that is an excellent summation by drawing views,of the control surface movements.Keep in mind that there are TWO sets of trim tabs,operating in concert with the rudder( omg what rudder servo...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 01:35 PM
Replies: 85
Views: 35,060
Posted By alex5

the ailerons are small in comparison,and used in...

the ailerons are small in comparison,and used in conjunction with the inner split of the outer wing flap..so in a normal turn, the inner split on the outside wing panel is flat,and the aileron up???
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 05:18 AM
Replies: 85
Views: 35,060
Posted By alex5

The link to the other build is this..funny how a...

The link to the other build is this..funny how a common goal usually creates similar approaches...I had never seen this build,and yet it is virtually identical to my intentions and plan....
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 04:36 AM
Replies: 85
Views: 35,060
Posted By alex5

P61...one of my favorites.radial as well.The...

P61...one of my favorites.radial as well.The Caribou used the Pratt & Whitney R-2000-7M2 Twin Wasp...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 04:25 AM
Replies: 85
Views: 35,060
Posted By alex5

flaps

I hadn't seen this,from another discussion, until today but the inboard flaps are the easiest and this is do-able.The outboard flaps are linked to the ailerons,so probably use a separate set of...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-20-2018, 03:45 AM
Replies: 85
Views: 35,060
Posted By alex5

The flaps are quite tricky,but,if you have the...

The flaps are quite tricky,but,if you have the time,they can be very rewarding.I have them modeled in 3d,but I haven't come up with a great mechanism.
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 05:02 PM
Replies: 85
Views: 35,060
Posted By alex5

The engine pod is fairly large,and...

The engine pod is fairly large,and symmetrical,then rotated to suit the inner...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 02:28 PM
Replies: 85
Views: 35,060
Posted By alex5

The wing isnt small,with a lot of flap.

https://cimg2.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/921x615/wing_caribou_112782cec1d8223dba6150e732df6c2ead5c245f.jpg
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 02:02 PM
Replies: 85
Views: 35,060
Posted By alex5

The actual had radial engines.In my model,it was...

The actual had radial engines.In my model,it was Turnigy G60's electric,but,my weight should be about 7 kg,so in your case10-12 kg.maybe more.So,in scale flying,probably DLE 20's. or four stroke...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 01:42 PM
Replies: 85
Views: 35,060
Posted By alex5

this might help you to visualize the formers involved

https://cimg9.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1088x652/cariboo_formers_60526269efaf831536d13ac7ed0cb7b07ec2a196.jpg
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 12:55 PM
Replies: 85
Views: 35,060
Posted By alex5

if you have cad skills,you Can modify the formers...

if you have cad skills,you Can modify the formers and rib notchings to suit your choice of dimensional stock.
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 12:47 PM
Replies: 85
Views: 35,060
Posted By alex5

Caribou simplified

https://cimg3.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/597x480/isometric_image_1bceee62cbc700841daba7b4dd3201b9ddcfe38c.jpg

this gives you a general view of the build
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 12:42 PM
Replies: 85
Views: 35,060
Posted By alex5

it is,but the notches for 1/4" furring and 1/2 x...

it is,but the notches for 1/4" furring and 1/2 x 1/8 would scale up to something 3/8,and 7/8x5/16 respectively, or,you could adapt the fuse formers on the fly,(dont print by laser).You see,notches...
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 09:19 AM
Replies: 85
Views: 35,060
Posted By alex5

Mine is 96" ws. $50 for the cad file,easy...

Mine is 96" ws. $50 for the cad file,easy traditional balsa construction,all formers should be cut with a scroll,or laser.
Forum: Scratch Building, Aircraft Design, 3D/CAD
07-19-2018, 08:11 AM
Replies: 85
Views: 35,060
Posted By alex5

Charles has one,and I have one(cad modelled)

Charles has one,and I have one(cad modelled)
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-28-2018, 05:18 PM
Replies: 85
Views: 35,060
Posted By alex5

what it does is allow a steeper angle of...

what it does is allow a steeper angle of approach,and take off(it really creates the STOL effect) as when the hStab is rotated upward,it brings the nose down,along with the leading edge of the...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-28-2018, 08:17 AM
Replies: 85
Views: 35,060
Posted By alex5

that aileron portion is probably where it goes to...

that aileron portion is probably where it goes to "h in a handcart",as what is giving the aileron independent movement from the flap,and yet still droops by a percentile value in the mid slat,as the...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-26-2018, 07:44 PM
Replies: 85
Views: 35,060
Posted By alex5

Charles,I was thinking to myself,the middle slat...

Charles,I was thinking to myself,the middle slat is pretty much constant in it's rotation,why not lay up carbon fiber cloth on a form,and use that as the rigid shape to stabilize the hinge locations?
Forum: Scratch Building, Aircraft Design, 3D/CAD
04-12-2018, 06:50 PM
Replies: 85
Views: 35,060
Posted By alex5

3d printing comes out at about $3 per hinge,give...

3d printing comes out at about $3 per hinge,give or take,and numbers make that price come down a lot.
Forum: Scratch Building, Aircraft Design, 3D/CAD
04-12-2018, 02:16 PM
Replies: 85
Views: 35,060
Posted By alex5

Have you considered 3d printing the...

Have you considered 3d printing the attachments,using a service like 3dHubs.com?
Forum: Scratch Building, Aircraft Design, 3D/CAD
10-28-2015, 09:23 AM
Replies: 85
Views: 35,060
Posted By alex5

Flap and aileron Hinging

Charles: Did you ever manage to sort out the flaps ,and aileron connections?I have the line drawings that seem to indicate that the outer section is essentially connected by a storm door vacuum...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-25-2015, 06:04 PM
Replies: 85
Views: 35,060
Posted By alex5

here is a composite screen capture of the general...

here is a composite screen capture of the general process I use,after creating reference lines from a 3 view.I collect many stills,and snaps,putting them in various planar views,and build my cad...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-06-2015, 07:25 AM
Replies: 85
Views: 35,060
Posted By alex5

Discovery.ca,mighty planes video,c115 .Excellent...

Discovery.ca,mighty planes video,c115 .Excellent video of the buffalo,which uses almost the same fuselage,in a T tail,and turboprop PW6 engines.Gives good close up of the flaps operating.
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-30-2015, 01:34 PM
Replies: 85
Views: 35,060
Posted By alex5

Not trying to get anal about it,when you rotate...

Not trying to get anal about it,when you rotate two curves a minor 10-20 degrees that are symmetrical along an axis,as you rotate them,one curve becomes more resembling a straight line,and one...
Showing results 1 to 25 of 49
 
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