Doc J
Very Strong User
Friend of mine in Norway made F27. He asked me to work out the CG for him - worked fine and flew well.
I think there have been quite afew L29 made - is this right? Jet trainer - Pretty much ideal layout for PSS.
Doc.
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PSS Channel.
- Thread starter Doc J
- Start date
I think there have been quite afew L29 made - is this right? Jet trainer - Pretty much ideal layout for PSS.
Doc.
Doc J
Very Strong User
purview
Very Strong User
OT: I'll take the engine and retracts out and will use it as PSS, thanks for your directional drill to improve my sloping (w/o descend)
doable and must fix some wiring...
there are a few new jet-trainer planes that will also be nice as a PSS solution: Leonardo,Boeing or Aeralis
doable and must fix some wiring...
there are a few new jet-trainer planes that will also be nice as a PSS solution: Leonardo,Boeing or Aeralis
Doc J
Very Strong User
Nate suggested Aeralis some time ago - there are some interesting subjects there, thouh some of them need a bigger wing area
Yep Agreed.
Doc
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Doc
Doc J
Very Strong User
This is a goody - the wing fences make it a bit tricky but once the fuse mould was done then not too much trouble and its not bad for wing area either. The bulbous fuse is probably close to a lfting body shape, so (maybe) the drag from that would not be prohibitive. The wing and tail jags could be conveniently forgotten...What...? Would I...?
Yes I would!
Doc.
Yes I would!Doc.
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Doc J
Very Strong User
Like I said: "The wing and tail jags could be conveniently forgotten...What...? Would I...?
Yes I would!"Doc.
purview
Very Strong User
do it w/o dampened elevator (elevons would be super crazy)Like I said: "The wing and tail jags could be conveniently forgotten...What...? Would I...?
Doc.
Doc J
Very Strong User
????????????
purview
Very Strong User
i saw that plane on an airshow, performs well, agile and not so noisy. if it can do PSS on that size? 50-70"? maybe fun to work out.
Doc J
Very Strong User
I keep looking at this and umming and aaahhing...Love the overall looks but there does seem to be an awful lot of fuselage/engine cowling.This is a goody - the wing fences make it a bit tricky but once the fuse mould was done then not too much trouble and its not bad for wing area either. The bulbous fuse is probably close to a lfting body shape, so (maybe) the drag from that would not be prohibitive. The wing and tail jags could be conveniently forgotten...What...? Would I...?
Doc.
View attachment 18244
Makes me want to get my French curves and a marker pen out, which is not really the objective...
Umm...ahhh
Doc.
Doc J
Very Strong User
Back to props again - I did actually draw up a sketch for this aircraft - the Westland Wyvern.
In my opinion one of the most beautiful post war prop planes ever designed, and the noise they made with the contra-rotating prop just had to be heard.
There were some based at Farnborough the south of England close to my Grandfather's house during my formative years. Watching them do low passes across the airfield was amazing - I remember it well and I was only 5 years old.
Doc.
In my opinion one of the most beautiful post war prop planes ever designed, and the noise they made with the contra-rotating prop just had to be heard.
There were some based at Farnborough the south of England close to my Grandfather's house during my formative years. Watching them do low passes across the airfield was amazing - I remember it well and I was only 5 years old.
Doc.
Doc J
Very Strong User
Couple more views of the Wyvern. It would work pretty much to scale especially if it was bigger size, like 72" for example - though the same can always be said for any PSS model. The bigger they get, the better they work.
I think I might be tempted to exclude those fiddly tailplane fins though, and go for one of the engine test prototypes that didn't have them.
Food for thought.
Doc.
I think I might be tempted to exclude those fiddly tailplane fins though, and go for one of the engine test prototypes that didn't have them.
Food for thought.
Doc.
Attachments
Doc J
Very Strong User
Yohoho! Time to give an update on the Great Doc Hammond/Jure Zaninovich DH108 project.
Objective:
To produce a 2M plus span PSS model of the DeHavilland DH108 VW120 prototype experimental flyng wing:
Jure (Pronounced Yu-rey by the way - don't you just hate getting people's names wrong?) has taken some of the online drawings, and converted the scale 3-views to 3-D CAD using "Onshape" software, and with little or no prior experience, at the same time, has used the design exercise to learn to use the programme. Dayum!
Wow!!! is all I can say to that.
This will result in a 2M plus span model - which if you count the 40 degree swept back wings makes for a large plane.
The resulting Onshape CAD Rendering of the fuselage.
And now the assembly has been split into convenient "modules" in order to make a physical plug for moulding by using a 3-D printer. Each module will be printed separately and then joined when complete. Following that, and prior to making the moulds, the plug will be filled and finished after adding any reinforcement needed:
Thats 250mm wide at the wing stubs (Not visible yet).
More as it develops.
Doc.
Objective:
To produce a 2M plus span PSS model of the DeHavilland DH108 VW120 prototype experimental flyng wing:
- Fuselage = moulded
- Wings and fin = veneered foam
- Canopy clear vac formed plastic
Jure (Pronounced Yu-rey by the way - don't you just hate getting people's names wrong?) has taken some of the online drawings, and converted the scale 3-views to 3-D CAD using "Onshape" software, and with little or no prior experience, at the same time, has used the design exercise to learn to use the programme. Dayum!
Wow!!! is all I can say to that.
This will result in a 2M plus span model - which if you count the 40 degree swept back wings makes for a large plane.
The resulting Onshape CAD Rendering of the fuselage.
And now the assembly has been split into convenient "modules" in order to make a physical plug for moulding by using a 3-D printer. Each module will be printed separately and then joined when complete. Following that, and prior to making the moulds, the plug will be filled and finished after adding any reinforcement needed:
Thats 250mm wide at the wing stubs (Not visible yet).
More as it develops.
Doc.
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