Aircraft With Contrarotating Props

[carson1934]

Originally Posted by Waynos

You're welcome Carson.

Regarding LA610.

It was ordered as one of two Tempest prototypes that were to fly as the Tempest III, powered by the Griffon IIB engine and then be converted to the Tempest IV with the Griffon 61. In the event this requirement was dropped and all Tempest work concentrated on the Sabre and Centaurus powered models.

LA610 was then built instead as a Fury prototype (note 'built as', not 'converted into' as some would have it) and during its life it flew with Centaurus, Sabre and Griffon power leading some to call it the 'Tempest III' when pictured fitted with the Griffon 85 and contraprop, which is incorrect. Neither the Griffon 85 nor the contrprop were ever part of the Tempest III/IV effort. The Fury is substantially different, structurally, from the Tempest and when it was powered by the Griffon it was known only as the 'Griffon Fury' and then only unofficially. It was used purely as a trials aircraft with these different installations and when fitted with the Napier Sabre, as pictured below, was the fastest, and probably best looking, piston fighter Hawker ever built.

Thanks very much indeed Waynos for your informative and interesting comments.
A latin motto is in your case more than appropriate.
Tanto nomini nullum par elogium
Therefore I'm inferring that it is correct to designate the picture of the A/C of my post #71 as Hawker Fury prototype with Griffon 85 (LA/610).
In other words nothing to do with the Tempest
Cheers
carson1934

[Waynos]

That would be a 'yes' Carson

BTW are you looking only for aircraft that flew with contraprops or also projects that were meant to have them?

Would you also include the MD-90 and Yak 42 propfan testbeds as these also flew with contra rotating propellors?

[carson1934]

Originally Posted by Waynos

That would be a 'yes' Carson

BTW are you looking only for aircraft that flew with contraprops or also projects that were meant to have them?

Would you also include the MD-90 and Yak 42 propfan testbeds as these also flew with contra rotating propellors?

Hi Waynos
basically I mean to include in my listing only aircrafts that actually flew with contraprops (no unflown projects or paper planes but yes to mock-ups).
I'll google through today and investigate whether the planes you mentioned are eligible for being included.
Cheers
carson1934

[carson1934]

Originally Posted by carson1934

Hi Waynos
basically I mean to include in my listing only aircrafts that actually flew with contraprops (no unflown projects or paper planes but yes to mock-ups).
I'll google through today and investigate whether the planes you mentioned are eligible for being included.
Cheers
carson1934

Hi again Waynos,
I found on the web plenty of information about the YAK/42/LL (reg. RA42525) a flying testbed of the D-236
turboprop engine apparently mounted on the starboard side only which was shown at the air show in Paris in 1991. This one might just be eligible.
Alas I found no pics.
No information found sofar on the MD/90 with similar engine set-up.
carson1934

[Waynos]

I found one or two Carson but I only have this scan for the Yak, then their is the MD-90 and below them is the 727 with propfan too. I also believe the the Il-76 flew with it

[Waynos]

Carson, on the thread where you requested a picture of the Yak Tzaw1 posted a link to an interesting document, if you read it you will have seen this on there as well, it is a mock up of the Yak 44 and this is a slightly better quality version of the same picture in the link.

[carson1934]

Originally Posted by Waynos

Carson, on the thread where you requested a picture of the Yak Tzaw1 posted a link to an interesting document, if you read it you will have seen this on there as well, it is a mock up of the Yak 44 and this is a slightly better quality version of the same picture in the link.

I don't know how to thank you enough Waynos, this is a new world that is opening up to me.
The picture of the YAK42/LL by Tzaw1 is much better than any I found on the web so far and the mock-up of the Yak/44 is astounding after you retouched it.It will take about one year to translate approximately the russian article but I'm not in a hurry.
Cheers
carson1934

[carson1934]

Originally Posted by Waynos

Carson, on the thread where you requested a picture of the Yak Tzaw1 posted a link to an interesting document, if you read it you will have seen this on there as well, it is a mock up of the Yak 44 and this is a slightly better quality version of the same picture in the link.

Hi Waynos,
if you connect to the following link you will see the most beautiful pics of a Boeing 727 with UDF (unducted fan) as tested in the USA in 1986:
Boeing 727 Datacenter
Unfortunately being a brazilian site it's only in portuguese but if you require a short translation of some points I can help you out there.
carson1934

[Waynos]

Cheers Carson. I also very much like the look of the twinjet version, though its 787 designation looks a bit comical in retrospect. If I'm not mistaken it was getting a new wing too if the picture was anything to go by.

[carson1934]

Originally Posted by Waynos

Cheers Carson. I also very much like the look of the twinjet version, though its 787 designation looks a bit comical in retrospect. If I'm not mistaken it was getting a new wing too if the picture was anything to go by.

Yes, Waynos, I absolutely agree with you, due respect given to the designers of the DK design.
Cheers
carson1934

[AMCKen]

Are you differentiating between aircraft with contraprops driven by one engine and those with CP driven by 2 engines?
Nitpicker might say aircraft like the Macchi MC72 are actually twin-engine aircraft with counter-rotating propellors. : )

[carson1934]

Originally Posted by AMCKen

Are you differentiating between aircraft with contraprops driven by one engine and those with CP driven by 2 engines?
Nitpicker might say aircraft like the Macchi MC72 are actually twin-engine aircraft with counter-rotating propellors. : )

Hi AMCKen,
not really I am not differentiating between the two so long as they have contrarotating props, they actually flew or they advanced to at least mock-up stage (no projects, fancy projects, nightmarish projects or paper planes).
Then if anybody intends to nitpick (nice word I didn't know till you used it and I had to look on the Merriam-Webster)...well, let him nitpick.
By the way the manuscript of the listing is practically ready and I'm fine tuning it and checking a few data.
As you know my intention is not to lecture anybody or discuss a graduation thesis (too old for that) over the suject of aircrafts with CR props but merely provide a satisfactory database (as complete as possible) of the above.
If nothing happens I should be able to post it through by middle next week.
Thanks again for your continued interest and precious assistance in this task which proved to be rather difficult.
carson1934

[gumbyk]

Carson, I couldn't see any mention of the Fisher XP-75 on this post.

[carson1934]

Originally Posted by gumbyk

Carson, I couldn't see any mention of the Fisher XP-75 on this post.

Hi Gumbyk,
welcome to the contrarotating club and thanks for the wonderful pic of XP/75.
In my first list it's designated as General Motors XP/75 Eagle, that's why you couldn't find it.
In my forthcoming new list it is going to be more correctly designated Fisher/General motors...
carson1934

PS Auckland has become a very nice city I have pleasant memories of it while staying at a decent motel facing the rose gardens near Parnell!

[Waynos]

Carson, I posted in your push pull thread, you don't appear to have noticed.