Welcome to Multi-Rotor UK. Please login or sign up.

Wednesday,April 24, 2024, 00:25:42

Login with username, password and session length

Shoutbox

Gaza07:
23 Apr 2024 08:09:45
The Domain expires for the forum in 60 days, I'm not going to renew it this time unless I see any activity  :beer2:
Gaza07:
20 Apr 2024 18:02:50
Is there anyone who would like to see this forum stay open ? :shrug:
hoverfly:
17 Apr 2024 17:15:13
 :rolleyes:
Bad Raven:
26 Mar 2024 08:41:05
 :(
Andy7:
25 Mar 2024 14:49:21
An excess of work and rain.  :thumbdown:
Bad Raven:
23 Mar 2024 18:12:38
Almost a personal Blog, it would seem. LOTS of members, but NO posts.  :-/   :shrug:
Gaza07:
06 Mar 2024 16:59:49
Anyone still here  :shrug:
ched:
24 Dec 2023 11:48:48
Hope you all have a Great Christmas and a happy New Year.
Bad Raven:
20 Dec 2023 06:17:47
 ~~   :beer2: 
Gaza07:
19 Dec 2023 22:20:27
Merry Christmas All  :beer2:
Members
  • Total Members: 8,195
  • Latest: lokloks
Stats
  • Total Posts: 201,426
  • Total Topics: 20,261
  • Online today: 36
  • Online ever: 530
  • (Tuesday,June 26, 2012, 08:34:46 )
Users Online
Users: 0
Guests: 18
Total: 18

Theme Changer





3d - Printworx

OK, it's a Plane but what a fantastic piece of engineering!

Started by guest325, Thursday,December 26, 2013, 09:21:38

Previous topic - Next topic

fruitsalad

dont grow up,just buy bigger toys!!!!

Jumpy07

unbelievably amazing..  but cant help thinking the guy needs to get out more :-)
BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"

XH558

Nice though it is there seems to be a group of engineers working with complex electronic equipment to achieve it ...

So compare that to the chaps working on their own in sheds who knock out equally complex models to the same exacting scales ...

Barrington Hares 1/5 scale Merlin - a fully running V12 all made by him ... he even displays his scrap box so you can see the size of things like piston rings and bearings - all hand made by him...

Rolls Royce Merlin 1/5 scale model by Barrington Hares

Ferrari 312 PB replica scale model. Must Watch!!!




Then there';s the little french postman and his scale Ferrari 312 PB - so detailed that if you were small enough you could drive it ....



All equally precision made and all as astounding  ~~
David :)
[url="//www.mh434.com"]www.mh434.com[/url]
[url="//www.lincsaviation.co.uk/news/lancaster-nx611-return-to-flight/"]www.lincsaviation.co.uk/news/lancaster-nx611-return-to-flight/[/url]



guest325

Thanks, seen the Ferrari before but not the Rolls merlin very nice both of them.

XH558

Barrington Hares said that although you can scale down metal you can';t scale down oil ...  it';s either too thin or too thick for the pipes - so he can only run it for very short periods or it overheats  :rolleyes: :azn
David :)
[url="//www.mh434.com"]www.mh434.com[/url]
[url="//www.lincsaviation.co.uk/news/lancaster-nx611-return-to-flight/"]www.lincsaviation.co.uk/news/lancaster-nx611-return-to-flight/[/url]

Gav

Nice jet. Yeah that little Ferrari is something else.   Amazing

teslahed

Quote from: XH558 on Thursday,December 26, 2013, 15:39:38
Barrington Hares said that although you can scale down metal you can';t scale down oil ...  it';s either too thin or too thick for the pipes - so he can only run it for very short periods or it overheats  :rolleyes: :azn

Interesting that. With aircraft you can scale down the physical structure but you destroy the surface area to internal volume ratio when you reduce the size of the model which means that it will never fly like a perfect scale replica, if you make it as a perfect scale replica.

Similar to how you can throw an ant of the empire states building and it will be fine, but try that with a person...

I wonder if you could replace the oil with something with a higher specific heat capacity and lower viscocity? Mercury or Gallium perhaps?
One circlip short of a quadcopter.
 1 lobe short of an antenna.

guest325

This is where scale has become more important than functionality, as an engineer I regularly have these issues to resolve - alternative coolants is an idea but are too limited in their practicality; to me something I';ve designed must work, if scale accuracy is important then I will try to find the most sympathetic solution.