Pls tell me what helicopter this is - thanks.

Pls tell me what helicopter this is - thanks.

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Discussion

Ken Figenus

Original Poster:

5,706 posts

117 months

Tuesday 25th February 2020
quotequote all

enginearin

228 posts

252 months

Tuesday 25th February 2020
quotequote all
Ken Figenus said:
Looks like a Merlin to me

MKnight702

3,108 posts

214 months

Tuesday 25th February 2020
quotequote all
enginearin said:
Looks like a Merlin to me
Rubbish, where's its pointy hat.

Olas

911 posts

57 months

Tuesday 25th February 2020
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MKnight702 said:
Rubbish, where's its pointy hat.
The pointy hat is in the hedge to the left of the image - the downdraft put it there.

IanH755

1,858 posts

120 months

Tuesday 25th February 2020
quotequote all
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.

Ken Figenus

Original Poster:

5,706 posts

117 months

Tuesday 25th February 2020
quotequote all
Thanks guys - appreciated.

It wasn't Yeoville though - bit lower down smile



This was funny when those more used to doing the filming realised they were being filmed. He did such a double take biggrin



I blo0dy love choppers!

mikal83

5,340 posts

252 months

Tuesday 25th February 2020
quotequote all



I blo0dy love choppers!
[/quote]

1 million rivets flying in close conformation.

take-good-care-of-the-forest-dewey

5,117 posts

55 months

Tuesday 25th February 2020
quotequote all
mikal83 said:


I blo0dy love choppers!
1 million rivets flying in close conformation.
More of a very slow motion crash - can take years.

wolfracesonic

6,973 posts

127 months

Tuesday 25th February 2020
quotequote all
Ken Figenus said:
This was funny when those more used to doing the filming realised they were being filmed. He did such a double take biggrin

Did the filming helicopter overtake the Police helicopter really, really slowly then floor it when they were out of sight?

Brink

1,505 posts

208 months

Tuesday 25th February 2020
quotequote all
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
In that case, what's with the canting of the tale rotor/fan? Does it increase tail lift? And what effect does that have on rudder control at hover and above say 100Kn. Are additional cyclic inputs required?

Steve vRS

4,845 posts

241 months

Tuesday 25th February 2020
quotequote all
mikal83 said:


I blo0dy love choppers!
1 million rivets flying in close conformation.
I saw on here them described as metal fatigue surrounded by an oil leak.

I think of that every time I board one.

lufbramatt

5,338 posts

134 months

Tuesday 25th February 2020
quotequote all
Brink said:
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
In that case, what's with the canting of the tale rotor/fan? Does it increase tail lift? And what effect does that have on rudder control at hover and above say 100Kn. Are additional cyclic inputs required?
They use the tail boom as a kind of vertical wing to help counter the torque from the rotor and relieve the load on the tail rotor. That’s why they have those huge “spoilers” along the port side of the tail boom

J3JCV

1,248 posts

155 months

Tuesday 25th February 2020
quotequote all
Ken Figenus said:
Thanks guys - appreciated.

It wasn't Yeoville though - bit lower down smile



This was funny when those more used to doing the filming realised they were being filmed. He did such a double take biggrin



I blo0dy love choppers!
Is that Culdrose?

miniman

24,912 posts

262 months

Tuesday 25th February 2020
quotequote all
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
I drew a lot of the wiring diagrams for the EH101 nerd

mikal83

5,340 posts

252 months

Tuesday 25th February 2020
quotequote all
J3JCV said:
Ken Figenus said:
Thanks guys - appreciated.

It wasn't Yeoville though - bit lower down smile



This was funny when those more used to doing the filming realised they were being filmed. He did such a double take biggrin



I blo0dy love choppers!
Is that Culdrose?
No

Brink

1,505 posts

208 months

Tuesday 25th February 2020
quotequote all
lufbramatt said:
Brink said:
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
In that case, what's with the canting of the tale rotor/fan? Does it increase tail lift? And what effect does that have on rudder control at hover and above say 100Kn. Are additional cyclic inputs required?
They use the tail boom as a kind of vertical wing to help counter the torque from the rotor and relieve the load on the tail rotor. That’s why they have those huge “spoilers” along the port side of the tail boom
Thanks, but I know that already. My question was about the canting of the anti-torque system, whether it's a open rotor or a fenistron. Even the NOTAR system appear have an cant angle, but its subtle. Earlier helicopters have a vertically aligned tail rotor.

Boatbuoy

1,941 posts

162 months

Wednesday 26th February 2020
quotequote all
Brink said:
lufbramatt said:
Brink said:
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
In that case, what's with the canting of the tale rotor/fan? Does it increase tail lift? And what effect does that have on rudder control at hover and above say 100Kn. Are additional cyclic inputs required?
They use the tail boom as a kind of vertical wing to help counter the torque from the rotor and relieve the load on the tail rotor. That’s why they have those huge “spoilers” along the port side of the tail boom
Thanks, but I know that already. My question was about the canting of the anti-torque system, whether it's a open rotor or a fenistron. Even the NOTAR system appear have an cant angle, but its subtle. Earlier helicopters have a vertically aligned tail rotor.
On Merlin, the tail fin is canted over, but the tail rotor disc is vertically aligned:



However, some aircraft, notably some Sikorsky's have a very definitely canted tail rotor design:



OP, looks like Newquay Airport?

mikal83

5,340 posts

252 months

Wednesday 26th February 2020
quotequote all
Boatbuoy said:
Brink said:
lufbramatt said:
Brink said:
IanH755 said:
It's a new build Merlin EH101 out of AW Yeovilton but I don't it's one built for the UK military (wrong DAS sensors on the nose). I worked on Merlin Mk3/MK3A's for 5 years at Benson so know them well.
In that case, what's with the canting of the tale rotor/fan? Does it increase tail lift? And what effect does that have on rudder control at hover and above say 100Kn. Are additional cyclic inputs required?
They use the tail boom as a kind of vertical wing to help counter the torque from the rotor and relieve the load on the tail rotor. That’s why they have those huge “spoilers” along the port side of the tail boom
Thanks, but I know that already. My question was about the canting of the anti-torque system, whether it's a open rotor or a fenistron. Even the NOTAR system appear have an cant angle, but its subtle. Earlier helicopters have a vertically aligned tail rotor.
On Merlin, the tail fin is canted over, but the tail rotor disc is vertically aligned:



However, some aircraft, notably some Sikorsky's have a very definitely canted tail rotor design:



OP, looks like Newquay Airport?
YES

Mave

8,208 posts

215 months

Wednesday 26th February 2020
quotequote all
Brink said:
Thanks, but I know that already. My question was about the canting of the anti-torque system, whether it's a open rotor or a fenistron. Even the NOTAR system appear have an cant angle, but its subtle. Earlier helicopters have a vertically aligned tail rotor.
IIRC it's to provide an element of lift at the rail to allow a wider range of C of Gs.

Ken Figenus

Original Poster:

5,706 posts

117 months

Wednesday 26th February 2020
quotequote all
Yes Newquay guys.

Love the canted 'positive camber' tail rotor talk - you would have thought that neutral would be more predictable in all flight conditions.

Was just amazing to be about 400m ahead of a taking off 737 and then doing a 180 degree shot around it that was so smooth and steady. Beyond loved being surrounded by all these amazing bits of kit!