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Dick Johnson's wing flattening jig?



 
 
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  #1  
Old August 21st 10, 05:02 AM posted to rec.aviation.soaring
ryanglover1969[_2_]
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Posts: 21
Default Dick Johnson's wing flattening jig?

Has anyone heard of Dick Johnson's wing flattening jig? I'm interested
in a Discus A and the owner said that this glider has had the wings
flattened. A previous owner of this glider was Wil Schuemann so mabey
he did the work. Anyone have more information about a wing flattening
jig and if it yielded any performance increase?
  #2  
Old August 21st 10, 03:31 PM posted to rec.aviation.soaring
Morgans[_2_]
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Posts: 3,924
Default Dick Johnson's wing flattening jig?


"ryanglover1969" wrote in message
...
Has anyone heard of Dick Johnson's wing flattening jig? I'm interested
in a Discus A and the owner said that this glider has had the wings
flattened. A previous owner of this glider was Wil Schuemann so mabey
he did the work. Anyone have more information about a wing flattening
jig and if it yielded any performance increase?


Is that related to the left hand, or the right hand board stretcher?
--
Jim in NC


  #3  
Old August 21st 10, 03:52 PM posted to rec.aviation.soaring
Bob Kuykendall
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Posts: 1,345
Default Dick Johnson's wing flattening jig?

On Aug 21, 7:31*am, "Morgans" wrote:

Is that related to the left hand, or the right hand board stretcher?


Yes, probably so.
  #4  
Old August 21st 10, 04:11 PM posted to rec.aviation.soaring
Andy[_1_]
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Posts: 1,565
Default Dick Johnson's wing flattening jig?

On Aug 20, 9:02*pm, ryanglover1969 wrote:
Has anyone heard of Dick Johnson's wing flattening jig? I'm interested
in a Discus A and the owner said that this glider has had the wings
flattened. A previous owner of this glider was Wil Schuemann so mabey
he did the work. Anyone have more information about a wing flattening
jig and if it yielded any performance increase?


You may be thinking of the Johnson wing waviness measuring tool. It's
a 3 contact point base with a dial gauge in the middle.

It's one thing to measure what's there, quite another to change what's
there into what you might like.

Andy
  #5  
Old August 21st 10, 09:12 PM posted to rec.aviation.soaring
JJ Sinclair
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Posts: 388
Default Dick Johnson's wing flattening jig?

As a matter of fact I purchased the Wng Flattener from Dick just
before his untimley death. It is necessary to flatten both the top and
bottom of both wings to get maximum perormance increase. You must
carefully remove all wax and contaminates before placing your wings
into the molds. Then plug it into 220 (3-phase) current and select 75
amps to start with. If after an hour the wings arent flat then turn
the selector up to max (100 amps) and wait another hour. I charge
$1000 per side, so both sides of both wings will run you $4000 with a
10% discount for FNG's

Dick also sold me the rights to his Wing Stretcher which will run you
$1000 per meter. Expencive, but one customer is ecstatic over his 30
meter Libelle!
JJ
  #6  
Old August 21st 10, 09:21 PM posted to rec.aviation.soaring
Darryl Ramm
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Posts: 2,403
Default Dick Johnson's wing flattening jig?

On Aug 21, 1:12*pm, JJ Sinclair wrote:
As a matter of fact I purchased the Wng Flattener from Dick just
before his untimley death. It is necessary to flatten both the top and
bottom of both wings to get maximum perormance increase. You must
carefully remove all wax and contaminates before placing your wings
into the molds. Then plug it into 220 (3-phase) current and select 75
amps to start with. If after an hour the wings arent flat then turn
the selector up to max (100 amps) and wait another hour. I charge
$1000 per side, so both sides of both wings will run you $4000 with a
10% discount for FNG's

Dick also sold me the rights to his Wing Stretcher which will run you
$1000 per meter. Expencive, but one customer is ecstatic over his 30
meter Libelle!
JJ


Can the wing stretcher be modified to fit a glider tail?

Darryl
  #7  
Old August 22nd 10, 02:20 PM posted to rec.aviation.soaring
Dave Nadler
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Posts: 1,610
Default Dick Johnson's wing flattening jig?

On Aug 21, 12:02*am, ryanglover1969 wrote:
Has anyone heard of Dick Johnson's wing flattening jig? I'm interested
in a Discus A and the owner said that this glider has had the wings
flattened. A previous owner of this glider was Wil Schuemann so mabey
he did the work. Anyone have more information about a wing flattening
jig and if it yielded any performance increase?


I hear that UH is in possession of the related wing-stretcher ?
  #8  
Old August 22nd 10, 03:15 PM posted to rec.aviation.soaring
[email protected]
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Posts: 2,124
Default Dick Johnson's wing flattening jig?

On Aug 21, 4:12*pm, JJ Sinclair wrote:
As a matter of fact I purchased the Wng Flattener from Dick just
before his untimley death. It is necessary to flatten both the top and
bottom of both wings to get maximum perormance increase. You must
carefully remove all wax and contaminates before placing your wings
into the molds. Then plug it into 220 (3-phase) current and select 75
amps to start with. If after an hour the wings arent flat then turn
the selector up to max (100 amps) and wait another hour. I charge
$1000 per side, so both sides of both wings will run you $4000 with a
10% discount for FNG's

Dick also sold me the rights to his Wing Stretcher which will run you
$1000 per meter. Expencive, but one customer is ecstatic over his 30
meter Libelle!
JJ


JJ- You're not spillin' the beans on th Mark IV version with the 4th
order reflex compensation are you? I thought we agreed to keep it to
ourselves till 2015.
Are you selling out on me?
UH
  #9  
Old August 22nd 10, 03:42 PM posted to rec.aviation.soaring
T8
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Posts: 429
Default Dick Johnson's wing flattening jig?

On Aug 21, 4:12*pm, JJ Sinclair wrote:
As a matter of fact I purchased the Wng Flattener from Dick just
before his untimley death. It is necessary to flatten both the top and
bottom of both wings to get maximum perormance increase. You must
carefully remove all wax and contaminates before placing your wings
into the molds. Then plug it into 220 (3-phase) current and select 75
amps to start with. If after an hour the wings arent flat then turn
the selector up to max (100 amps) and wait another hour. I charge
$1000 per side, so both sides of both wings will run you $4000 with a
10% discount for FNG's

Dick also sold me the rights to his Wing Stretcher which will run you
$1000 per meter. Expencive, but one customer is ecstatic over his 30
meter Libelle!
JJ


Dang. My three phase is either 208 or 480. I'm outta luck.

-T8
  #10  
Old August 22nd 10, 03:43 PM posted to rec.aviation.soaring
JJ Sinclair
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Posts: 388
Default Dick Johnson's wing flattening jig?


JJ- You're not spillin' the beans on th Mark IV version with the 4th
order reflex compensation are you? I thought we agreed to keep it to
ourselves till 2015.
Are you selling out on me?
UH


At the time of his death, Dick Johnson was also working on a ground-
loop prevent'er and I have his concept drawings. The heart of the
system is a gyro that instantly detects lateral motion while on the
ground. The unit is armed via an oleo-strut micro switch and directs
high pressure air to the opposite wing (ground-loop detected to left =
air directed to right wing). A 2 inch plastic sleeve is mounted inside
both wings with a 10 pound sliding slug that will instantly fly from
the root rib to the wing tip just as soon as the gyro detects a ground-
loop developing. I believe the concept to be sound and I am presently
working on a method of stopping the slug when it reaches the wing tip.
Stat tuned,
JJ
 




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