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Nimbus 2 load factor limits?



 
 
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  #1  
Old December 15th 15, 06:36 AM posted to rec.aviation.soaring
Surge
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Posts: 150
Default Nimbus 2 load factor limits?

Does anyone know what the load factor limits are for the Nimbus 2?
It's not stated in the manufacturer's manual which I find rather strange. Surely these limits would have been measured and verified during type certification?

Searching the Internet didn't reveal anything either and it seems that there are other owners who don't know those figures either.
e.g. http://www.glidingwa.com.au/Private%...2/Page%20X.htm
  #2  
Old December 15th 15, 09:10 AM posted to rec.aviation.soaring
Jock Proudfoot
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Posts: 91
Default Nimbus 2 load factor limits?

At 05:36 15 December 2015, Surge wrote:
Does anyone know what the load factor limits are for the Nimbus

2?

+5.3g and -2.65g at VA
+4.0g and -1.5g at VNE

http://wwwapps.tc.gc.ca/saf-sec-sur/...celn/c_d.aspx?
lang=eng&amp%3baprv_num=G-
113&amp%3bISU_NUM=3&amp%3bSTART_DATE=2003-04-
14&amp%3bAUTH_DESC=&amp%3bDESC=&amp%3bFRGN_NUM=&
amp%3baprv_type=TA&amp%3bPARTS_NUM=&amp%3bid_num=8
86

Cheers ...Jock

  #3  
Old December 15th 15, 09:27 AM posted to rec.aviation.soaring
Bengt Aronsson[_3_]
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Posts: 3
Default Nimbus 2 load factor limits?

Well, according to the tcds linked from german CAA website (
https://www2.lba.de/data/bb/Segelflug/sp_0286_01.pdf ) its certified to
german LFS requirements without deviations. The min required load factors
then is +5.3 / -2.65g at max maneuvering speed, lineary decreasing to +4.0
/ -1.5g at Vne.
Airbrakes out requirements are +3.5 / -0g.

At 05:36 15 December 2015, Surge wrote:
Does anyone know what the load factor limits are for the Nimbus 2?
It's not stated in the manufacturer's manual which I find rather strange.
Surely these limits would have been measured and verified during type
certification?

Searching the Internet didn't reveal anything either and it seems that
there are other owners who don't know those figures either.
e.g. http://www.glidingwa.com.au/Private%...2/Page%20X.htm


  #4  
Old December 15th 15, 12:21 PM posted to rec.aviation.soaring
Surge
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Posts: 150
Default Nimbus 2 load factor limits?

On Tuesday, 15 December 2015 10:30:11 UTC+2, Bengt Aronsson wrote:
Well, according to the tcds linked from german CAA website (
https://www2.lba.de/data/bb/Segelflug/sp_0286_01.pdf ) its certified to
german LFS requirements without deviations. The min required load factors
then is +5.3 / -2.65g at max maneuvering speed, lineary decreasing to +4.0
/ -1.5g at Vne.
Airbrakes out requirements are +3.5 / -0g.



Thank you very much.
That railway line, main spar looks like it could take a lot more abuse than the certified limits.
  #5  
Old December 15th 15, 01:09 PM posted to rec.aviation.soaring
Bruce Hoult
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Posts: 961
Default Nimbus 2 load factor limits?

On Tuesday, December 15, 2015 at 2:21:45 PM UTC+3, Surge wrote:
On Tuesday, 15 December 2015 10:30:11 UTC+2, Bengt Aronsson wrote:
Well, according to the tcds linked from german CAA website (
https://www2.lba.de/data/bb/Segelflug/sp_0286_01.pdf ) its certified to
german LFS requirements without deviations. The min required load factors
then is +5.3 / -2.65g at max maneuvering speed, lineary decreasing to +4.0
/ -1.5g at Vne.
Airbrakes out requirements are +3.5 / -0g.



Thank you very much.
That railway line, main spar looks like it could take a lot more abuse than the certified limits.


I'm sure Ray Lynskey's N2 got an awful lot of high speed (and often high altitude) abuse on mountain ridges and in rotor. It survived it.
  #6  
Old December 15th 15, 02:46 PM posted to rec.aviation.soaring
Chris Rollings[_2_]
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Posts: 133
Default Nimbus 2 load factor limits?

The figures quoted are the JAR22 Certification requirements of that era.
It was necessary to demonstrate that, at least in theory, it could take 50%
in excess of that, and in practice most types even exceeded that. However
that was when they were new.

At 12:09 15 December 2015, Bruce Hoult wrote:
On Tuesday, December 15, 2015 at 2:21:45 PM UTC+3, Surge wrote:
On Tuesday, 15 December 2015 10:30:11 UTC+2, Bengt Aronsson wrote:
Well, according to the tcds linked from german CAA website (
https://www2.lba.de/data/bb/Segelflug/sp_0286_01.pdf ) its certified

to
german LFS requirements without deviations. The min required load

factors
then is +5.3 / -2.65g at max maneuvering speed, lineary decreasing to

+4.0
/ -1.5g at Vne.
Airbrakes out requirements are +3.5 / -0g.



Thank you very much.
That railway line, main spar looks like it could take a lot more abuse

than the certified limits.

I'm sure Ray Lynskey's N2 got an awful lot of high speed (and often high
altitude) abuse on mountain ridges and in rotor. It survived it.


  #7  
Old December 15th 15, 03:29 PM posted to rec.aviation.soaring
WAVEGURU
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Posts: 290
Default Nimbus 2 load factor limits?

Does the aging of fiberglass weaken it? Learn something new every day here on RAS.

Boggs
  #8  
Old December 15th 15, 08:16 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 463
Default Nimbus 2 load factor limits?

On Tuesday, December 15, 2015 at 8:29:56 AM UTC-6, Waveguru wrote:
Does the aging of fiberglass weaken it? Learn something new every day here on RAS.

Boggs


Looking at the chemistry, polymerization should continue as the glider ages. With more cross-links, the structure should be getting stronger with age (unlike you and I, Gary).
 




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