Welcome, Guest
Username: Password: Secret Key Remember me

TOPIC: Models for 2017 Flying Season

Models for 2017 Flying Season 1 year 6 months ago #594

  • rogersimmonds
  • rogersimmonds's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
  • Posts: 169
  • Karma: 3
  • Thank you received: 16
Hi guys,

now that the short days are with us, it's time to hunker down in the workshop and plan for the lovely flying days (i wish) next year.

Howard Metcalfe is busy with a hemi-demi-semi profile F-4 Phantom:



Chris Richard is planning a replica Jetex Interceptor:



other contacts have talked about Viggens:




Drakens:


and Simon Milan has moved on from the Opel Rak to a MiG 9 with enclosed Rapier:






This is all very encouraging.

I've got a rather larger hemi semi (you get the idea) Red arrows Hawk on the go. After this years rather smooth flights with a genuine Jetex, this will be for a Jetex 50C, or if this doesn't provide enough oomph, a PAA loader.

I've also been designing a Hawker P.1081. This was the precursor of the famous Hunter:



and will be most attractive in the prototype's 'eu de nil' decoertion:



I've already made a profile version:




but this time I fancied something built up. Here is the draft plan ready for 'beta testing':




Note the trough is large enough to take a Jetex 50. All the bits seem to fit together OK, so if anyone fancies making a slice of British aeronautical history, please ask for the templates for the profile version, or if you are brave enough I can provide a 'hi-res' jpeg of the 'superscale' built up version..

Now I just have to build it! B)

Anybody else out there with winter projects? - we have stocks of Rapiers - so there is no excuse not to get busy!

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.

Models for 2017 Flying Season 1 year 6 months ago #595

  • rogersimmonds
  • rogersimmonds's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
  • Posts: 169
  • Karma: 3
  • Thank you received: 16
Howard is making good progress with his F-4 Phantom:








Howard writes:

"I hope this thing flies after all the time I have squandered on finishing it, if it doesn't it will become a hangar queen and don't want that!!!! I have enjoyed dirtying up the undersides though as apparently the Phantom leaked like a sieve. Just the fin to paint now, a few warning signs and the trough to line and it is done, weight as you see here is 33g (for comparison the finished Viggen with used Rapier is 32g). I'll get there eventually!" B)

This looks to be good progress - I particularly like the idea of putting the Rapier motor in the scale-like pod. And I'm sure it will fly with enough oomph behind it.

Progress with my Hawker P.1081 has been very slow. My first attempt at the fuselage showed the positions of the stringers were nowhere near OK, so I redrew the plan taking them out:




And here are the keels with the formers attached:



the stringers and sheeting around the nose and wing root are then attached ad hoc, making sure everything is more or less straight:










Having done the port side the starboard side should be easier as the dimensions have now been worked out.

Note the sheeting around the wing roots, trough, nose, and where the fin will be slotted in.

Not too bad, but I always 'over engineer' these things . Nevertheless it weighs a reasonable 13g so far.

Anyone else out there building anything?

Onwards and upwards! :unsure:

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.

Models for 2017 Flying Season 1 year 5 months ago #596

  • rogersimmonds
  • rogersimmonds's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
  • Posts: 169
  • Karma: 3
  • Thank you received: 16
Hi Guys,

not all of us have been slumped in front of the idiot box this Christmas. :S I received this welcome info from Howard Metcalfe;
"Hope you all had a good Xmas and still are still enjoying the break, here is what I have been up to over Boxing Day and Tuesday and few hours here and there since.
At the moment I am waiting until I get the chance to replace my printer before I can finish my Phantom F4 and with time on my hands and feeling the need to build something over those two days (i.e. get my hands on some balsa rather than more painting and decorating even if it is a model) I luckily spied the tail end of my Mig 15 sticking out of box in what will be the new utility room. I first built it around 1999 I think and it has been well flown and crashed many times.
This is how it used to look even after the right hand wing had been patched up somewhat.



But have been repairing it (the model) bit by bit over the last few years and it only needed a new tailplane and finishing off a few details like a new nose intake splitter etc to get it ready for covering again. It was badly beaten up everywhere except one wing, I think I had to patch up every former in the fus. and rebuilt the tail and nose ends extensively and I also took the opportunity to change the sheet balsa tailplane and fin to more scale section built versions, just me letting my OCD out of the box. The light is very poor today hence it is a bit of a crap pic (my excuse):



Making and fitting the nose splitter after the fus. is completed built was fun, I will need to remove it again for painting and then glue it in permanently. Now I have to decide on the new colour scheme before I set to covering it, the same as before or something new, that is the question.

Best regards and have a fun time over the New Year, Howard" :)

Howard is an example to us all - I hope to return to my P 1081 when the house is empty. :S

Is anybody else out there building anything ... please let us know - it's getting quite lonely here! :unsure:
Attachments:

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.

Models for 2017 Flying Season 1 year 5 months ago #597

  • andyblackwell
  • andyblackwell's Avatar
  • Offline
  • Senior Member
  • Senior Member
  • Posts: 64
  • Karma: 2
  • Thank you received: 18
Greetings and a happy new year,
Now I'm not going to make any promises I can't keep but the MiG 15 is a subject I've never built. From what we see here and what I know of Roger's example, it flies as well as it is possible for a model to fly. However, the model railway is going to take priority as it's already been on the back burner for over a decade. :ohmy: It's true I put in a lot of occupational grunt which often leaves me spent, but I'll have to work smarter not harder.
Cheers all,
Andy.

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.

Models for 2017 Flying Season 1 year 5 months ago #600

  • rogersimmonds
  • rogersimmonds's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
  • Posts: 169
  • Karma: 3
  • Thank you received: 16
Hi Guys,

first, confession time. The stringered fuselage for the Hawker P 1081 didn't work out :( . The stringers were not as regular as I wold have liked and the whole thing was, at 15g, getting quite heavy. In frustration I decided to start again, with a moulded fuselage, that is, one without any stringers but an all-balsa shell like the Jetex Tailored models of yore. I have described the technique before (for a Draken) but here below is what I did for the P 1081.

First, 1/32" plywood templates are made of the fuselage cross sections at regular (2-3" ) intervals and sandwiched between block balsa,

This is carved and sanded to shape and given two coats of epoxy resin. A really smooth finish is obtained with various grades of 'wet or dry' paper.:



The moulds are 'tack-glued' to 1/2" balsa before the nect step.

next, very soft 1/16" balsa is soaked in hot water for 2-3 hours:



The still wet balsa sheet is then wrapped around the mould and quite tightly bound with flat rubber strip"



Above: not a mummy taken from an ancient Egyptian tomb but the 1/16" balsa sheet tightly bound to the mould.

It is then left to dry for 12 hours (or so) in a warm place - say a radiator top.

When completely dry the rubber is unwound and the shell carefully taken off the mould. The next bit is tricky: the shell is trimmed and pinned around the edges back on the mould and the surface wetted (hot water). Any slack in the shell is taken out by stretching over the mould and repinning. Hopefully, wetting the outer surface of the shell will remove the marks made by the rubber strip.
The whole is then left to dry completely. The near-perfect shell can then be taken off the mould and trimmed to shape:



Above: shells for the P 1081 fuselage. Some of the compound curves in the prototype are quite large, so the balsa did 'pinch' in places. Hopefully these can be sanded out later. The worst of these ( I should have cut in darts) are fortunately on the underside and will be cut away later for the motor trough :) The shells weigh about 3.6g each - quite pleasing.

So this is some progress - next, making a fuselage frame the shells can be glued on to.
Attachments:

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.

Models for 2017 Flying Season 1 year 4 months ago #601

  • rogersimmonds
  • rogersimmonds's Avatar Topic Author
  • Offline
  • Administrator
  • Administrator
  • Posts: 169
  • Karma: 3
  • Thank you received: 16
Progress with the P.1081 has been slow but steady. :unsure:

I know from experience that unsupported shells can warp, so the next step was to cut out some light 1/16" balsa formers and glue in place, followed by 'tabs' at the fuselage join:


Above: formers at front and rear and in strategic places, eg, wing leading edge. Note the balsa strip to support the motor mount and the outline of the trough and the cut out for the fin. At this point the shells weigh 11g in total - not too bad. :)

Next, the outline of the wing fairing is drawn on accurately, making sure the two halves match:



Above: the fairings will be cut out later (saving more weight).

The two halves were then, with some trepidation glued together using PVA glue and bound (lightly) with rubber:



Next job is to make the wing fairings - an easy task (I hope) compared to the fuselage!

Watch this space ... ;)
Attachments:

Please Log in or Create an account to join the conversation.

Last Edit: by rogersimmonds.
Time to create page: 0.233 seconds
Powered by Kunena Forum