DH Heron: A question, an answer and a Christmas puzzle
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- Garry Russell
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Depends if it is un modofoed which makes it difficult
The operators list is not very clear
A quick glance
Jersey Airways should be Jersey Airlines
Morton, British Eagle, Channel, BUIA and Siver City are missing
I doubt if BA operated them I would have thought NXA and B had gone by then.
Hmmmmmmmmmm.:think:
Garry
The operators list is not very clear
A quick glance
Jersey Airways should be Jersey Airlines
Morton, British Eagle, Channel, BUIA and Siver City are missing
I doubt if BA operated them I would have thought NXA and B had gone by then.
Hmmmmmmmmmm.:think:
Garry
Garry

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"In the world of virtual reality things are not always what they seem."
- RAF_Quantum
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- Garry Russell
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They did John 'NXA then went out to New Zealand. 'NXB went into a museumRAF_Quantum wrote:Peters Aviation had NXA and NXB for a while I believe.
Rgds
John
Prinnair would have been one of the last operators but they were all Riley Herons I think
Garry
Garry

"In the world of virtual reality things are not always what they seem."

"In the world of virtual reality things are not always what they seem."
One of the Hawaii ones ended up here:
http://starbulletin.com/2005/01/10/features/story1.html
And assuming the captions are correct, all three are here.
http://www.oldprops.ukhome.net/Heron%20Photographs.htm
Edit:
And just realised OLDPROPS is BACK :dance: :yipeee:
http://www.oldprops.ukhome.net/
http://starbulletin.com/2005/01/10/features/story1.html
And assuming the captions are correct, all three are here.
http://www.oldprops.ukhome.net/Heron%20Photographs.htm
Edit:
And just realised OLDPROPS is BACK :dance: :yipeee:
http://www.oldprops.ukhome.net/
- Chris Trott
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Re: DH Heron: A question, an answer and a Christmas puzzle
Condition & RPM are roughly analogous. There are some differences in that "Condition" implies both blade angle and mixture are controlled and it is normally associated with the operation of turboprops and is used to place the engine in either the "Low-Speed Ground Idle" or "High-Speed Ground Idle" which changes not only the fuel flow into the engine but changes how the blades are controlled with movement of the "power lever" (throttle). In Low-Speed, the blades are controlled directly within a fairly small range of pitch and no additional fuel is admitted to the engine except what is required to maintain RPM. In High-Speed, the fuel is controlled directly and the blades change to maintain RPM as additional fuel is admitted into the engine.johnhinson wrote: A Question
I have been in correspondence with somebody who flew DH Herons
of various types - he says the Gipsy-powered ones had a single lever
for each engine combining Power, Mixture and Condition. Can
somebody explain "Condition"? Is it the same as RPM? (I don't want
to pester the correspondent on trivialities like that as he is an MD of
a small airline.
- DispatchDragon
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The HATS aircraft are no longer at PHNL - or at least if they were there in September they were very well hidden - Id mentioned them elsewhere and
HATS owned three Herons and half a dozen doves - the owner had a wharehouse full of parts but NO twobladed props for the Herons although he had a scad of three bladed props for the Doves. - His scandanvian solution was to get an STC from the Honolulu FSDO and hang three bladed props
on them - Source BTW is the President of NTPS at Mojave who gave me the guided tour of their Dove earlier in the year - They bought HATS collection of spares. But the aircraft were not in the package.
Leif
HATS owned three Herons and half a dozen doves - the owner had a wharehouse full of parts but NO twobladed props for the Herons although he had a scad of three bladed props for the Doves. - His scandanvian solution was to get an STC from the Honolulu FSDO and hang three bladed props
on them - Source BTW is the President of NTPS at Mojave who gave me the guided tour of their Dove earlier in the year - They bought HATS collection of spares. But the aircraft were not in the package.
Leif

- johnhinson
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An interesting list that . . . but alas it doesn't include the operator I'm thinking of.DaveB wrote: John..
A 'complete' list of operators can be found here (amongst other places) so I'd presume one of them was 'the last'..
http://en.wikipedia.org/wiki/De_Havilla ... s_of_Heron
That airline is still active, by the way, but not with Herons of course.
John
- Chris Trott
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I like that Wikipedia entry... Too bad N82D wasn't exactly "recently" restored... Bud Rude (owner of Cool Air, Inc. - CV240 operator & Flying Fireman, Inc. - PBY-5A firebomber operator for the state of Washington; and father of Noel Rude, owner of Air Tahoma, Inc. - CV580 operator) restored her in the mid-1980s to her current look and has just kept her looking that way since then. The look is accurate though and she was part of the Queen's Flight during her ownership by the Royal Navy.
- Garry Russell
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