Old Modeller
Bronze Member
Kudos: 1
 Offline
 Australia
Posts: 26
Topic starter
|
 |
« on: May 11, 2021, 07:25:58 AM » |
|
It’s time to build something new, and hopefully aerobatic. A pencil, and ruler, and here it is.
Will it fly though?
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #1 on: May 15, 2021, 06:41:02 AM » |
|
Fuselage sides, and Formers F2,F3,F4 into the jig for gluing.
Alignment looks good.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #2 on: May 15, 2021, 10:22:46 PM » |
|
Out of the jig, with the tailplane trial fitting.
|
|
|
|
Logged
|
|
|
|
|
OZPAF
|
|
« Reply #3 on: May 16, 2021, 02:23:09 AM » |
|
It looks interesting. Is it for a 40?
Good luck with it.
John
|
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #4 on: May 16, 2021, 03:41:13 AM » |
|
Hi, it will have an OS 46 with tuned pipe. Roughly the dimensions of a Q500, but with less drag.
The fuselage outline is basically the excellent Keith Thomas, Pecker delta glider design, modified to a powered model, with a tapered conventional shoulder wing.
Thanks for your interest.
|
|
|
|
« Last Edit: May 16, 2021, 05:40:59 AM by Old Modeller »
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #5 on: May 18, 2021, 07:17:45 AM » |
|
The fin is next. Must look cool, and built up is preferred.
Something like this.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #6 on: May 20, 2021, 01:58:40 AM » |
|
Built up fin in dry fit check.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #7 on: May 20, 2021, 02:02:12 AM » |
|
The next project already being planned. Something like this probably.
|
|
|
|
Logged
|
|
|
|
|
OZPAF
|
|
« Reply #8 on: May 20, 2021, 05:59:51 AM » |
|
It's coming on well! I like your sturdy jig - nifty.
Will you be using a built up or sheeted foam wing.
have fun.
John
|
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #9 on: May 20, 2021, 06:30:01 AM » |
|
The jig is my own design which came about after some pondering when the original jig reached the end of its life. I am pleased with the result.
I am still debating the wing design. I have a set of sheeted foam wings I made some years ago, but I have recently cut a set of balsa ribs for this model. I watched full size F18 Hornets take off today and am thinking swept wings might be in order.
More progress on the fuselage tomorrow, and then I will decide on the wing configuration. Sweep back will affect the centre of gravity.
Much to consider.
|
|
|
|
« Last Edit: May 20, 2021, 07:10:47 AM by Old Modeller »
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #10 on: May 20, 2021, 06:32:56 AM » |
|
The tailplane needs a ply brace for mounting, and then hinging the aft control surfaces. Hinging is a pain!
|
|
|
« Last Edit: May 20, 2021, 08:06:19 AM by Old Modeller »
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #11 on: May 20, 2021, 08:10:42 AM » |
|
Triangular stock is excellent for bracing, and gives the fuselage a rounded shape. Also gives the bottom sheeting more bonding surface. Thanks Phil Dell for this tip so many years ago.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #12 on: May 21, 2021, 05:30:07 AM » |
|
Bottom sheeting done, and rough sanding to shape.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #13 on: May 21, 2021, 05:42:30 AM » |
|
Looking more like the plan now.
|
|
|
« Last Edit: May 21, 2021, 06:31:15 AM by Old Modeller »
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #14 on: June 08, 2021, 12:23:18 AM » |
|
More pictures soon hopefully. Work is busy at the moment.
|
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #15 on: November 27, 2021, 08:25:50 PM » |
|
Engine fit to confirm tuned pipe clearance, with the wing.
Looks good.
|
|
|
|
Logged
|
|
|
|
Old Modeller
Bronze Member
Kudos: 1
Offline
Australia
Posts: 26
Topic starter
|
|
« Reply #16 on: December 21, 2021, 02:56:57 AM » |
|
Using a router table, with cutting disk, to cut the hinge slots for the tail, and elevator.
Scrap wood used to test hinge centre position.
|
|
|
|
Logged
|
|
|
|
|
