By continuing to use this site, you agree to our use of cookies. Find out more

Vintage Models KK Elmira

Build problems

All Topics | Latest Posts

Search for:  in Thread Title in  
Paul Ashford16/08/2020 16:29:31
avatar
26 forum posts
82 photos

Canopy framework in position, the rear former F3 had to be remade approx 3mm larger all round to cater for the original problem with F4/5 being undersize at the wing intersection. The canopy transparency will stretch to fit once this is all dry. Some adjustment was also needed at F2 to fit the profile, however, the supplied former could be used. Next step will be to trim and (trial) fit canopy transparency once all is dry I can then see how much the original F4/5 will need to be built up on the top edge.20200816_145053.jpg

Paul Ashford19/08/2020 10:04:30
avatar
26 forum posts
82 photos

And now to the canopy, I was forewarned by VMC that they had reports saying the canopy does not fit. So after making the canopy frame I then carefully cut the moulding as close as possible to the edge to leave as much material as possible. Offering up the canopy to the frame it is possible to get it to fit, JUST. However the rear of the moulding has some distortion formed during the moulding process but it is useable. For anyone else building this kit DO NOT CUT THE CANOPY MOULDING ON THE MARKED LINES, if you do it will not fit. I have emailed VMC with this information so it can be rectified when they update the kit.

20200817_113010.jpg20200817_113103.jpg

Paul Ashford19/08/2020 10:20:17
avatar
26 forum posts
82 photos

Canopy update.

Just had an email from VMC to say they are redrawing the canopy and making a new plug, new canopies will be available soon.

Paul Ashford06/09/2020 15:50:11
avatar
26 forum posts
82 photos

Whilst working on the canopy I noticed that the front lower cross-brace obscures the access to the front of the fuz. This was cut out and replaced lower to allow a 1000mah battery to be placed in the nose as forward as possible.

20200902_113521.jpg

Paul Ashford06/09/2020 15:58:40
avatar
26 forum posts
82 photos

The plan does not show in detail the fairings for fin and tailplane so this is my interpretation using soft balsa, the rear block was recessed to accept the fin post.20200904_112416.jpg20200905_090418.jpgTriangular balsa was also added at the base of the fin to increase the gluing area. This is the completed assembly, minus fin, dry fitted.

Nigel Sharp06/09/2020 16:49:57
40 forum posts
166 photos

The rear fuselage is more rounded on the original KK Elmira, Here are some photos from mine.

Also the tail is sheeted on the lower surface between the fuselage and Rib 1. I found that the covering seriously saged between the ribs on the upper surface so when I refurbished mine I also sheeted the top from leading edge to the diagonal brace.

20200906_163430.jpg

20200906_163442.jpg

20200906_163501.jpg

Paul Ashford06/09/2020 17:20:31
avatar
26 forum posts
82 photos

Nigel, thanks for the photos, I could have taken some more wood out of the back to round it off even more I guess, there is probably enough thickness in the wood there. The tailplane is sheared on the centre section at ribs 1 for support. I will be covering in solartex so hopefully it will cover ok. Time will tell.

Peter Bree26/10/2020 15:21:43
avatar
1 forum posts
10 photos

I built my Elmira around 1970. I didn't care for the rudder profile purely on aesthetic grounds and 'squared' it out to look more like the later Skylark. This vastly increased the rudder area and I never suffered from the lack of response noted in the kit review. However the control still lacked the precision for slope top landings and after about three flights I cut off the trailing edge, added a sub spar with the lower edge rotated forward and top hinged the now ailerons with monocote strips. I followed the then practice and had a single servo at the wing centre with pushrods through the wing with press stud connectors at the wing break. The ailerons were from the end of the tip root sheeting out to two rib bays short of the tip. I used little mechanical differential but the top hinging gave me a well harmonised control with no adverse yaw. The photo is cropped from a bigger original. It shows more or less how the fin and rudder looked. Hope this helps someone. If I build another one I will add top surface air brakes and wing mounted servos, but leave the rest as was.

elmira2crop.jpg

Paul Ashford13/11/2020 16:36:32
avatar
26 forum posts
82 photos

img-20201024-wa0003.jpegUpdate on the Elmira build which has taken way too long but there is no rush at the moment. Airframe is now covered in Solartex that I just happened to have the remains of a ten metre roll I bought some time ago. The bare wood was primed with dope thin 50/50 with thinners and lightly sanded to remove the roughness. Paint trim is water based acrylic airbrushed on and sealed with clear varnish. Radio fit has been completed and control throughs roughly set. All I have left to do is fit the canopy and then set the CofG which I will try and get completed this weekend.

Latest photos added to album.20201022_103809.jpg20201110_170037.jpg

Edited By Paul Ashford on 13/11/2020 16:38:38

martin collins 113/11/2020 16:49:04
avatar
475 forum posts
212 photos

Very nice, you`ve made a nice job of that.........

J D 813/11/2020 17:35:37
avatar
1655 forum posts
83 photos

Looking good. yes

kc13/11/2020 17:44:40
6777 forum posts
174 photos

Worth saying that this plan is a design by Cliff Goater - original proprietor of The Balsa Cabin.

Paul Ashford15/11/2020 14:08:51
avatar
26 forum posts
82 photos

After what feels like for ever the Elmira is finally finished! Balanced out at 55mm from leading edge and canopy fitted. The build has not been without it's problems, however, I am very pleased with the outcome. Admittedly I didn't make life easy for myself deciding to incorporate modifications along the way. There have been many reports that the model is sluggish to turn on just Rudder (even the legendary Dave Hughes reported this back in '71) so I have incorporated ailerons and spoilers to assist with the landings. I will report back on this after the first flight, whenever that may be. I am very pleased with the look of the model and can't wait to chuck it off the hill!20201115_132514.jpg20201115_132720.jpg

All Topics | Latest Posts

Please login to post a reply.

Latest Forum Posts
Support Our Partners
Subscribe now
electricwingman 2017
Slec
Sussex Model Centre
CML
Advertise With Us
Sarik
Latest "For Sale" Ads
NEW POLL - has the pandemic altered your event safety perceptions?
Q: Has the covid pandemic deterred you from attending shows and events in 2021?

 No, I'll be attending just as many as I usually do
 No, but I'll choose my event with greater care
 Yes, I'll attend fewer events going forward
 Yes, I wont attend any where previously I have

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E!