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F17 vs NACRA 5.0 vs NACRA 4.5

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Learning to Fly...
(@nacrajon)
Posts: 43
Lubber Registered
Topic starter
 
[#24264]

Boat | NACRA 4.5 | NACRA 5 | NACRA F17
Length | 4.50m | 5.0m | 5.2
Width | 2.44m | 2.44m | 2.44
Weight | 120kg | 130kg | 1.56 kg
Sail area | 17.5m^2 | 19m^2 | 15.25m^2
Spinnaker | Option | No | 17/19m^2
People | 1-2 | 2 | 1
Design | Skeg | Skeg | Dagger
VYC Yardstick| 88(no spin) |81 |72.5

What's the primary reason the F17 is 15.5 minutes faster around the buoys than a NACRA 4.5 in 100 minute race?

1. Waterline length
2. Only 15% heavier with both having one crew, but spinnaker makes up for it
3. Much faster to tack due to daggerboards
4. Dagger boards allow it to point higher
5. Higher aspect ratio sail


 
Posted : January 10, 2009 6:52 am
TEAMVMG
(@TEAMVMG)
Posts: 1188
Master Chief Registered
 

What time is it?

half past twelve


 
Posted : January 10, 2009 7:30 am
TEAMVMG
(@TEAMVMG)
Posts: 1188
Master Chief Registered
 

Whats the capital of France?

Paris


 
Posted : January 10, 2009 7:31 am
(@Anonymous 6548)
Posts: 1652
 
Originally Posted by nacrajon
Boat | NACRA 4.5 | NACRA 5 | NACRA F17
Weight | 120kg | 130kg | 1.56 kg

What's the primary reason the F17 is 15.5 minutes faster around the buoys than a NACRA 4.5 in 100 minute race?

Clearly the F17 has an advantage only being 1.56kg


 
Posted : January 10, 2009 7:55 am
(@Anonymous 38725)
Posts: 5859
 

What's the primary reason the F17 is 15.5 minutes faster around the buoys than a NACRA 4.5 in 100 minute race?

1. Waterline length
2. Only 15% heavier with both having one crew, but spinnaker makes up for it
3. Much faster to tack due to daggerboards
4. Dagger boards allow it to point higher
5. Higher aspect ratio sail

-Yes-


 
Posted : January 10, 2009 8:23 am
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