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-   -   Gazelle: Flying, operating, buying (https://www.pprune.org/rotorheads/160829-gazelle-flying-operating-buying.html)

ericferret 11th Apr 2011 08:55

What Limits

I think the rotorbrake mod would not close the throttle. If the brake was applied at flight idle. The mod would prevent operation of the brake.

The throttle is gated in the fully open open position and the only way to close it would be to haul on the brake with enough force to break it out of the gate.

I think the mod is to prevent operation of the brake at flight idle and to prevent throttle advance with the brake on.

However it's all a long time ago so my memory could be at fault.

Zishelix 11th Apr 2011 09:06

Not so unusual... there was also misprinted serials after the workshop.
But hey, who pay attention on such trifles anyway :)

Epiphany 11th Apr 2011 11:48


The brake: I understand where 311 is coming from - you've got this lever lowered right in front of you .. how could you miss it! But .. after the 100th time of seeing something in the same position I've heard the mind can do funny things.
Not only that Savoia but at 04:00 when you have been flying all night on single-pilot NVG Ops in NI nothing is that obvious - believe me. I was once so knackered that I thought that I was releasing the rotor brake but was actually advancing the SSL (one should be moved quickly, the other very slowly!) I think the engine surge woke everyone up at Bessbrook. :uhoh:

Savoia 12th Apr 2011 08:16

.
Pray tell the purpose of the bullet-shaped attachments mounted on the for'ard landing gear of SP's 'Navvy' Gazelles!

If we're going for military pairs, then here's my contribution:

https://lh5.googleusercontent.com/__...lle%20Pair.jpg

Sav

Epiphany 12th Apr 2011 08:26

I would imagine it to be part of the smoke dispensing system for displays it being a Shark machine. But then it could be some secret Navvy bit of kit.:suspect:

My theory on the 'Navvy' origin is that it had just landed at Middle Wallop and while the crews were in the mess the REME got at it.

Fake Sealion 12th Apr 2011 08:27

Sav

Bullet shaped pods on RN Gazelles. Think they were the coloured smoke pods used by the Sharks display team- although not 100% sure.

Edited to say - I've looked at some Sharks images and now think the smoke pods were mounted on the aft skid leg, so the pods remain a mystery. Was it a pod for a distress beacon in the event of ditching...that sort of rings a bell with me?

Zishelix 12th Apr 2011 08:33

To participate and answer the question :)
https://lh6.googleusercontent.com/_H.../RN_Sharks.jpg

Savoia 12th Apr 2011 08:52

.
But I thought the Sharks used exposed cannisters as circled below:

https://lh5.googleusercontent.com/__..._formation.jpg

https://lh5.googleusercontent.com/__...dw/gazelle.jpg

Sav

Fake Sealion 12th Apr 2011 08:55

See my edited post # 750 above

Flying Bull 12th Apr 2011 15:14

Pussers Pair displaying for relatives of wingsparade


Still remember those days at culdrose, especially the tours with the sharks, as I was old enough, to drive the van with the attached caravan to the display sites, while they were flying there.
The caravan was used to give the posters and the stickers away...

Greetings Flying Bull

Savoia 12th Apr 2011 16:33

.
Great stuff FB!

I have a vast amount of Blue Eagles memorabilia from the late 70's and early 80's (most of it signed by various team members) and which I need to dig out and photograph one of these fine days!

In the meantime a small snapshot from one of their performances:


Sav

Thomas coupling 12th Apr 2011 20:34

Now you mentioned it, I don't exactly remember, but it wasn't smoke cannister shrouds or anything to do with the smoke generators. I think it was a prehistoric ELT.

Can anyone help me upload some piccies?

Tickle 13th Apr 2011 03:42

I've noticed some Gazelles have their horizontal stabiliser endplates cut down to tiny sections. Does this have an effect to reduce drag or increase tail rotor authority perhaps?

Savoia 13th Apr 2011 05:02

.
Tickle: On the stretched versions only from what I've seen.

Am also keen to discover the rationale behind this mod.

Sav

Senior Pilot 13th Apr 2011 05:34


Originally Posted by Tickle (Post 6366972)
I've noticed some Gazelles have their horizontal stabiliser endplates cut down to tiny sections. Does this have an effect to reduce drag or increase tail rotor authority perhaps?

IIRC, reduced stability requirement because of the longer fuselage on the 'stretched' Gazelles.

The attachment on the fwd stbd crosstube isn't anything to do with the smoke flares: they were on the rear crosstube, either side, with a highly technical piece of string back into the cockpit to fire the flare when needed :cool:

Another view of the pod: I've asked another Sharks driver without any luck so far :hmm:

http://www.sharksreuniondinner.co.uk...ack%20Tail.jpg

Zishelix 13th Apr 2011 09:50

Definitely not related with a smoke cannisters
https://lh4.googleusercontent.com/_H...1RzE/XX391.jpg

... but what it is :confused:

peterperfect 13th Apr 2011 10:27

It was an underwater sonar beacon (prob Dukane) to assist in locating wreckage should one ditch, I suspect the mod was installed after The Sharks Display Team tragedy in 1977 during a practice serial over Mounts Bay. I recall a later mod put it in the tail boom.

Zishelix 13th Apr 2011 11:33

Peterperfect, thanks for your kind explanation :ok:

Zishelix 14th Apr 2011 13:03

A spectacular 360° ALAT Gazelle cockpit view!

Press left button on the mouse and go any direction Helicomontagne.fr ... enjoy! :)

311kph 14th Apr 2011 17:22

what's with the shovel?!


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