By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

Comper CLA-7 Swift

All Topics | Latest Posts

Search for:  in Thread Title in  
Bernd Lewerenz12/01/2019 14:50:27
234 forum posts
140 photos

20190109_163249.jpg

Bernd Lewerenz12/01/2019 14:50:57
234 forum posts
140 photos

20190109_163152.jpg

Bernd Lewerenz12/01/2019 14:53:38
234 forum posts
140 photos

Very simple solution.The front is removable

Bernd Lewerenz13/01/2019 14:23:58
234 forum posts
140 photos

20190113_094009.jpg

Bernd Lewerenz13/01/2019 14:36:30
234 forum posts
140 photos

The Comper is ready to cover. I start with the wing.For the first time I use Sig Koverall.The procedure is the same like cover with silk. the difference is, you can tighten it with the iron. I hope so.

Bernd Lewerenz16/01/2019 11:45:46
234 forum posts
140 photos

20190116_122322.jpg

Bernd Lewerenz16/01/2019 11:46:58
234 forum posts
140 photos

The wing is covered with Koverall. It works

Bernd Lewerenz27/01/2019 12:25:18
234 forum posts
140 photos

20190127_085450.jpg

Bernd Lewerenz27/01/2019 12:27:17
234 forum posts
140 photos

Before the elevator is glued in position, a final control is carried out

kc27/01/2019 14:37:28
5871 forum posts
168 photos

Bernd, an excellent thread and almost 4000 views but not many comments. But I am going to ask an awkward question before it's too late.........is your tailplane sanded to section? And could that be the reason why the tailplane incidence differs from the plan? Somebody asked a question yesterday on a completely different design but one that used the same method of tailplane construction. The reply stated that it was sanded to an airfoil shape after construction- details are here with a further link to some photos of this type of tailplane.

If you have any doubts on this aspect of the Comper it might be worthwhile contacting the designer - Philip Kent has his phone number and e-mail contact details on his club website where he sells his other plans.

Edited By kc on 27/01/2019 14:40:54

Bernd Lewerenz28/01/2019 09:48:52
234 forum posts
140 photos

20190128_101627.jpg

Bernd Lewerenz28/01/2019 09:49:35
234 forum posts
140 photos

20190128_101422.jpg

Bernd Lewerenz28/01/2019 10:33:41
234 forum posts
140 photos

Hello and thanks" for your mail.Your question is not awkward at all.I like comments although I was a bit surprised.

Plese compare plan and tailplane section in the two pictures above.There is only a small change in my method of construction.According to the plan the elevator(not elevator area) is one part.But then you can not install the rudder.

So I have devided the elevator in two parts.That"s all.I have described this in the pictures in Prev 4.

Either I did not understand the plan or your questionthinking

By the way, I"m looking forward to any comment

kc28/01/2019 17:37:32
5871 forum posts
168 photos

Bernd, on your photo January 3rd The plan in the background seems to show the elevator sectional view marked " typical tailplane section" which appears to be airfoil shaped. Therefore I expected the tailplane to have been sanded to that section. That is to say the plan shows a lifting section but your tailplane seems flat. Perhaps i am wrong as I do not have the plan to see clearly. Maybe it won't make any difference if the incidence is adjusted. But I thought I would mention it before you glued on the tailplane.

kc28/01/2019 17:51:37
5871 forum posts
168 photos

For clarity - what I call the tailplane is the fixed part not the elevator. Some people refer to that as the stabiliser. ( stabilizer in USA )

kc28/01/2019 19:58:50
5871 forum posts
168 photos

Sorry Bernd I mistyped earlier and it's confused the situation! I should have typed

" on your photo January 3rd The plan in the background seems to show the TAILPLANE sectional view marked " typical tailplane section" which appears to be airfoil shaped. "

My reasoning is that the original design seems to show a lifting tailplane section and this needed a curved cutout in the fin and a curved shape piece underneath. Viewing the small part of the plan in your photos it looks as though the chord line of the tailplane airfoil would have been parallel to the fuselage longeron. Yet as you have made a flat tailplane section ( I think ) this should also be parallel ( flat ) on the fuselage longeron in my view. Putting a wedge under the flat tailplane would alter the incidence from that shown on the plan.

Just my view and without a proper copy of the plan I may be wrong!

Andrew Calcutt28/01/2019 20:43:13
3 forum posts

Looking at some of photos of the plan it looks like the tail plane is sectioned,I would check before you go any further better safe than sorry.

Gothiquity28/01/2019 20:54:16
25 forum posts
27 photos

All, if you look at page two of the posts, you see I asked Berndt about the section of the stabilizer/elevator and asked Berndt to take a side on, which he did. The photo provides a good idea of the section that was sanded to, before covering etc.

Bernd Lewerenz29/01/2019 09:14:18
234 forum posts
140 photos

Hello Andrew,

first of all, you are right in all respects.I had a problem with some words in the translation in your text.

There are many special words in our hobby, and often there is no reasonable translation in my language.

In this case it was the word "airfoil ". The translater describes a part you need by work in garden???????

But now, I know, what you mean.And you are right.I actually built the tailplane flat. In the sideview of the plan the tailplane has an airfoil section.But the ribs are not drawn. And so I just made the tailplane flat.I also describe the Comper in our magazine FMT.There, I alsodit not mention the flat design.I can now correct that in time.

You are a good observer.Hope we can keep our comments

Bernd

Andrew Calcutt29/01/2019 09:21:17
3 forum posts

Thanks Bernd you look to have made a lovely job,plan builds are a lot of work!

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

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

Find RCM&E! 

Latest Forum Posts
Support Our Partners
electricwingman 2017
Gliders Distribution
Motion RC
Slec
Pepe Aircraft
CML
Wings & Wheels 2019
Revoc
Advertise With Us
Sarik
Does your club have a safety officer?
Q: Does your club have a safety officer, or is the emphasis on individual members to each be their own safety officer?

 Yes we have a SO
 No, it's down to everyone

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us