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Performance Statistics
These results are drawn from an independent
test conducted in California by a well known chandler.
more info
It should be noted that no reflectors tested here attain the required 10m2
RCS, or sustain a level over 240o of >2.5m2 and have gaps
well in excess of 10o.
When heeled
emulating a reflector at sea, their
performance deteriorates further.
Please refer to the
Performance Charts for other reflectors
tested since, by the admiralty.
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| Table 1. Ranking of Reflectors Based on a
Minimum Return of 2.5~m2
not heeled |
X-band
|
S-band
|
| Reflector |
>2.5m2 |
RCS(m2)
|
Gap°
|
>1.0m2 |
RCS(m2)
|
Gap° |
| Davis Echo Master, Vertex Up |
**63% |
7.00 |
17 |
57% |
1.71 |
21 |
| Davis Echo Master, Double C.R. |
48% |
5.05 |
31 |
13% |
0.90 |
78 |
| Lensref (4î R)
|
30% |
2.37 |
103 |
0% |
0.44 |
--- |
| Davis Echo Master, Catch Rain |
26% |
2.00 |
54 |
0% |
0.49 |
--- |
| Blipper Model 210-7 |
11% |
1.66 |
43 |
26% |
0.74 |
66 |
| Radar Flag (Flat) |
9% |
3.89 |
157 |
11% |
3.38 |
149 |
| Blipper Model 210-5 (4î R) |
7% |
1.39 |
96 |
8% |
0.49 |
185 |
| Davis Emergency
(5.7îR), C.R. |
2% |
1.25 |
117 |
0% |
0.30 |
--- |
| Mobri
(2îR) |
**0% |
1.08 |
--- |
0% |
0.46 |
--- |
| Cyclops #1 (5.4îR) |
0% |
0.57 |
--- |
0% |
0.22 |
--- |
| HYE
(5î) Catch Rain |
0% |
0.47 |
--- |
0% |
0.12 |
--- |
| Radar Flag (Draped) |
0% |
0.40 |
--- |
6% |
0.38 |
169 |
| High Gain Rotation
(4î R) |
0% |
0.38 |
--- |
0% |
0.22 |
--- |
| Mobri (1îR) |
**0% |
0.22 |
--- |
0% |
0.16 |
--- |
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|
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| Table
2. Ranking of Reflectors Based on a
Minimum Return of 2.5~m2 heeled |
X-band
|
S-band
|
| Reflector |
>2.5m2 |
RCS(m2)
|
Gap°
|
>1.0m2 |
RCS(m2)
|
Gap° |
| Davis Echo Master, Double C.R. Heel=20∞ |
43% |
4.54 |
36 |
19% |
1.02 |
78 |
| Davis Echo Master, Vertex Up, Heel=10∞ |
**19% |
3.81 |
85 |
11% |
0.89 |
142 |
| Davis Echo Master, Vertex Up, Heel=20∞ |
**13% |
3.52 |
85 |
20% |
1.03 |
79 |
| Blipper Model 210-5 (4î
R) Heel=20∞ |
6% |
1.22 |
175 |
2% |
0.36 |
292 |
| Lensref (4î R),
Heel=20∞ |
0% |
1.32 |
--- |
0% |
0.18 |
--- |
| Cyclops #1(5.4îR),
Heel=20∞ |
0% |
0.52 |
--- |
0% |
0.24 |
--- |
| High Gain Rotation (4î R),
Heel=20∞ |
0% |
0.42 |
--- |
0% |
0.27 |
--- |
| Mobri (2îR),
Heel=20∞ |
**0% |
0.37 |
--- |
0% |
0.17 |
--- |
| Mobri (1îR),
Heel=10∞ |
**0% |
0.07 |
--- |
0% |
0.04 |
--- |
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(** Note high sensitivity to angle of heel for this
orientation and reflector)
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C.R. = catch rain |
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R = radius |
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Copyright
© 2003 Nova Marine. All Rights Reserved.
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