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Author Topic: IAR-80s and -81 inline variant  (Read 13575 times)

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.50calBMG

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IAR-80s and -81 inline variant
« on: February 02, 2012, 03:47:03 PM »

it seems that the IAR-80 and -81 planes are pretty much ignored in 1946, so I thought of this.
these planes are really sleak and aerodynamic as they are with radial engines, which is pretty impressive, so what if there was an inline version of it. seems like the DB-601 most likely wold have been used, but it would be cool if it was fitted with a DB-603, -605, Allison V-1710, or Merlin of some model.
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Barkhorn

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Re: IAR-80s and -81 inline variant
« Reply #1 on: February 02, 2012, 04:22:27 PM »

it seems that the IAR-80 and -81 planes are pretty much ignored in 1946, so I thought of this.
these planes are really sleak and aerodynamic as they are with radial engines, which is pretty impressive, so what if there was an inline version of it. seems like the DB-601 most likely wold have been used, but it would be cool if it was fitted with a DB-603, -605, Allison V-1710, or Merlin of some model.

Actually, there was a proposal to install a BMW801 on it, but the romanians couldn't get the engines from the germans. Instead, they removed a Jumo 211 fom one of their JRS.79B (SM.79B), along with its cownling and radiator, and installed on it, but vibratiosn where so high during test flight where so high that the test was aborted, and the plane never flew again with this configuration.
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.50calBMG

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Re: IAR-80s and -81 inline variant
« Reply #2 on: February 02, 2012, 06:04:05 PM »

yeah, the 211 made some torque, but it would seem that a merlin or a 601 would be nice. afterall, both of the planes they come from had an empty weight of around 7000lbs.
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Pursuivant

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Re: IAR-80s and -81 inline variant
« Reply #3 on: February 03, 2012, 05:32:22 AM »

+1


I love the IAR-80 as an early war ride. It would be interesting to see how it would handle with a BMW801 (same engine as the FW-190), to see if it could could keep up as a late war fighter.

The only problem is that while the BMW801 was about the same diameter as the IAR K-14 engine, it was twice as heavy. Realistically, the AIR airframe would need to be redesigned to accommodate this, as well as to deal with the increased torque. Stronger engine mounts, possibly a longer nose. Possibly a bigger tail or slightly redesigned wings to counter torque. A lengthened fuselage and/or repositioned fuselage fuel tanks, etc. to get the center of gravity back to where it should be. Arguably, it would almost be an entirely new plane.

An inline engine would be even trickier to fit, since it would have a longer profile, which might cause pilot visibility problems, as well as more center of gravity issues.

All that said, a simple frankenplane could possibly be made by bolting the nose of one of the FW-190A variants onto the existing IAR model, or just tweaking FM, using data from the BMW801.
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.50calBMG

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Re: IAR-80s and -81 inline variant
« Reply #4 on: February 03, 2012, 11:46:13 AM »

yeah, true, but the fact that the IAR-80 is already so slim and streamlined with the radial it has, the 801 powered version would have been fitted with external strengtheners, therefor making it larger, heavier, and more nose heavy. to my freshman in highschool knowledge, which is good enough i think, the small width and lower weight in concert with the already twig thin main body and airfoils, just seems like a good idea
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.50calBMG

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Re: IAR-80s and -81 inline variant
« Reply #5 on: February 03, 2012, 04:51:15 PM »

maybe if someone frankened the 109 f or early g models noses or the any of the TA-152 noses into it... hmm, then add the cannon in the gap between the cylinders and had the spinnr of the 109 f. ::) ;)
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Barkhorn

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Re: IAR-80s and -81 inline variant
« Reply #6 on: February 04, 2012, 03:33:34 PM »

In the Jumo engined version, they used this cowling:





Aparently, this is what it looked like after the engine being installed:



P.S.: Doing this research, i started thinking about this JRS.79B... would be nice if someone could make both the Gnome-Rhone 14K and Jumo 211 versions, i've read once it had better performance than the standard italian version.
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HundertzehnGustav

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Re: IAR-80s and -81 inline variant
« Reply #7 on: February 04, 2012, 04:02:39 PM »

Its hard to fly worse than the standard sparviero, all right!
XD
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Pursuivant

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Re: IAR-80s and -81 inline variant
« Reply #8 on: February 05, 2012, 03:06:45 AM »

Aparently, this is what it looked like after the engine being installed:

Looks pretty, but visibility from the cockpit must be terrible.
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Barkhorn

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Re: IAR-80s and -81 inline variant
« Reply #9 on: February 05, 2012, 09:55:11 AM »

Aparently, this is what it looked like after the engine being installed:

Looks pretty, but visibility from the cockpit must be terrible.


Agreed. But we can't deny it was pretty good looking with this long cowling, like a raceing airplane :)
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.50calBMG

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Re: IAR-80s and -81 inline variant
« Reply #10 on: February 05, 2012, 08:10:03 PM »

yeah, lets go the extra mile, or kilometer, whichever your national distance measurments are (LETZ GO! USA USA! were different, go us. woo!), and give the bomb rack for the 81s a fuel tank from a skyraider, the big fueltanks on the A-1s, and have it so it looks integral, like an enlarged main fuel tank in the fuselage. maybe leave half the tank outside the planes belly. just one of my ideas that no one else is ADHD enough to think of. :D :D :D
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Dreamk

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Re: IAR-80s and -81 inline variant
« Reply #11 on: February 06, 2012, 08:54:42 AM »

There is a crazy thing with these planes in Il2 - If you pay attention to their emd files, all of them use, instead of version of the G&R K14 radial engine, various versions an inline engine that was only experiemntally developped and never entered production.
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