The section of the notes on jack stall was very interesting. The reference to large cyclic inputs during the recovery might explain how an army Gazelle got into an irrecoverable dive that ended up with three dead and two injured. For years I've wondered why the pilot would make large cyclic movements and maybe this is a clue.

Not unique to fenestrons - the point is that although the TR rpm decays linearly with the Nr decay, the actual thrust decay is following a 'square law'.

Eric - the notes rather over-egg the jackstall recovery - you have to pull quite hard to get it into jackstall and then only a slight relaxation of that pull is required to let it recover.

You have to keep pulling hard to keep it in jackstall which is a very un-natural thing to do.

The danger is getting it in a right hand turn, especially at low level as it rolls you further right as it enters jackstall.

We used to demonstrate entry and recovery either in a left hand turn at IPS or in a dive to VL at MPS.

212 - agreed, but that funny (peculiar not ha ha) loss of 'lip-lift' can give you a slightly more binary effect as Nr decays.

One of the joys of being the Theatre Ground Runner (or MTP if you like) was having to test the Jack stall entry and recovery characteristics on every Gazelle MR Handling Check. Suffice to say, having got several dozen under my belt, it rarely surprised me but I also discovered many line pilots were often surprised and unaware of the correct technique. Just like Fenestron Stall in fact, which is simply a French phrase meaning "Lead-Footed".

:ok: Excellent, I'll pass that one on to my Gazelle chums.

Not only GZL, lot of accident occurs with the EC 130 for same raison : lack of instruction about the fenestron and big tail effect crosswind. specially in final approach.

Seem to remember in the 'notes' - avoid winds from the right/turning left at low speed?
Current Bell I operate-avoid low speed turns right/wind from the left.....possible LTE.

Bringing this back to the original (17 year old!) thread.

Considering buying a 100% civil machine on the N register - but price is $450K. Nearly all components have 1000hrs or more remaining and it's in great condition.

So...?

Too expensive from my experience....


Some of the old military ones go for 100-150k....

Understood, but there is a very big difference in usability and value between the ex-mil machines and the 100% civil versions.

I must admit-never flew either of them.....


Whats the difference?
Just asking out of curiosity....

Main one is legal use - fully legal, even IFR (dependent fit) for the civil version. Permit to fly only for the ex-mil versions.

The 'secondary' is that the civilian ones tend to have had an easier life, much fewer hours etc.

Sam huey

I think you will find that the civil gazelle and the military gazelle are similar prices. And Huey the prices you mentioned are possiblby 20 years old you proberbly would double that in the uk
That's if you could find a flying ex mil gazelle for sale in the uk I know companies with waiting lists for gazelles as they are very sort after steve

Go for it fantastic helicopter and very contrary to what the gazelle detractors say if you need to know about gazelles ask a gazelle owner for feed back on prices and serviceability. Not a dreamer

I have almost 1500h on gazelle, so that's why I'm interested. Just trying to make the price tag fit an almost 50 year old machine...

CRAB - my instructor on QHI course decided to do the demo in a 60 deg RIGHT hand turn - saw Newport past over my head as we flipped all the way under. Asked for an instructor change!

Guys,

Does anybody have any experience of the UK Gazelle AH1, with the upward pointing exhaust, as shown below?

https://cimg2.ibsrv.net/gimg/pprune....7b4b6ed31a.jpg
Were there any drains in place to prevent the engine from filling with water in the case of shutting down in the rain?

Many thanks,
CRAN

No, we kept goldfish in ours - they loved the warm water...

I'll get my coat!

Ah, just seen it's a bootneck machine - don't know what they kept in theirs - presumably saltwater though.

Okay, really must do something else now!