Some years ago I sent them a sketch of a 20m two
seater which had a JS1 wing with an additional meter on each wing root.
Doesn't quite work for a motorglider SL version
though as the minimum wing loading is too high.
if they do builsd a 2 seater I hope they avoid
the Moby Dick type fuselage that Schempp use.
Schleichers are much better and after a couple of
rides in the ASH25 I'm VERY impressed by that
aircraft both in handling and performance.
Rigging and de rigging weren't too bad either.
Schleichers got the wing break out right too in
that no part is ridiculously heavy.
The Arcus wing inner panels are 107 kg each according to one owner.
Mike
,At 11:32 AM 12/13/2016, you wrote:
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_035C_01D25534.9280CA60"
Content-Language: en-au
So we are thinking the JS2 will be the 20m 2
seat flapped glider to rival the Arcus?
_________________________________________________________________________________________
Ross McLean
Mobile: + 61 488 270 105
Telephone: + 61 7 4325 4771
From: Aus-soaring
[mailto:aus-soaring-boun...@lists.base64.com.au] On Behalf Of Mike Borgelt
Sent: Tuesday, 13 December 2016 10:08 AM
To: Discussion of issues relating to Soaring in Australia.
Subject: Re: [Aus-soaring] JS3
From the South African chat group site I linked to
<http://www.avcom.co.za/phpBB3/memberlist.php?mode=viewprofile&u=42546&sid=de7b5ced5fa8b84951066ac029b5879f>Fransw
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Posts:
<http://www.avcom.co.za/phpBB3/search.php?author_id=42546&sr=posts&sid=de7b5ced5fa8b84951066ac029b5879f>1076
Joined: Tue Jun 02, 2015 3:22 pm
Closest Airfield: Pretoria
Location: Pretoria
<http://www.avcom.co.za/phpBB3/viewtopic.php?t=183997#p1789823>Re:
JS3 - New 15m glider from Jonker Sailplanes
*
<http://www.avcom.co.za/phpBB3/posting.php?mode=quote&f=1&p=1789823&sid=de7b5ced5fa8b84951066ac029b5879f>Quote
<http://www.avcom.co.za/phpBB3/viewtopic.php?p=1789823&sid=de7b5ced5fa8b84951066ac029b5879f#p1789823>Unread
postby
<http://www.avcom.co.za/phpBB3/memberlist.php?mode=viewprofile&u=42546&sid=de7b5ced5fa8b84951066ac029b5879f>Fransw
» Mon Dec 12, 2016 9:22 pm
Fransw wrote:
Bearcat wrote:What are the key differences to a
JS1 ... and what happened to the JS2 ?
I'm taking a big guess here, but isnt the JS2
their new self launcher ? Not yet released as far as I know..
No, sorry the new self launcher is called the JS1 Self Launcher not the JS2
:oops:
Maybe the JS2 is still a secret..
---------------------------
Which is what the Jonker website calls the JS
self launcher --- JS 1 self launch. The link may
be tagged JS2 but they clearly call it a JS 1 self launcher
Mike
At 09:36 AM 12/13/2016, you wrote:
JS2 seems to have become the JS1 self launcher,
they give it away in their early promo material / website URL's
I.e.Â
<http://www.jonkersailplanes.co.za/js2selflaun.htm>http://www.jonkersailplanes.co.za/js2selflaun.htm
On Tue, Dec 13, 2016 at 9:44 AM, Mike Borgelt
<<mailto:mborg...@borgeltinstruments.com>
mborg...@borgeltinstruments.com> wrote:
Thanks Richard,
Here's another link to another image.
<http://www.avcom.co.za/phpBB3/viewtopic.php?t=183997>http://www.avcom.co.za/phpBB3/viewtopic.php?t=183997
Interesting. Note high location of wing and
obvious section change near the root with
drooped leading edge for better alignment with alpha flow.
Retractable tailwheel. Note also locations of
pitot static and TE probes on the tips of the
tailplane. Not bad guys. The probes can be a lot
shorter (should be a local chord ahead of the
surface to prevent interference), the flow at
the tip shouldn't be affected much and moving
the probes there prevents the disruption of
laminar flow over a substantial part of the fin.
Other than that it looks like a scaled down JS 1 wing.
Wanna bet that this will be a 15/18M glider? I
can't see a huge market for a dedicated 15m
competition glider nowadays but a 15/18M should
sell well. The JS1 seems optimised for 18/21M.
So what happened to the JS2? I'd say it is a JS1
with the JS3 tech incorporated.
Mike
At 08:05 AM 12/13/2016, you wrote:
Just in case anyone missed it, Jonkers flew a
15m prototype. No word yet on whether it will be at Benalla or not.
<http://www.jonkersailplanes.de/js3-the-second-one/>http://www.jonkersailplanes.de/js3-the-second-one/
Rich.
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