What if

Picture Post => Current and Finished Projects => Aircraft => Topic started by: The Rat on March 07, 2020, 05:09:57 PM

Title: PZL RT-1 Iskra
Post by: The Rat on March 07, 2020, 05:09:57 PM
Okay, so this collection of plastic lumps I bagged last week will hopefully be turned into a high-altitude reconnaissance aircraft, the TR-1. This will happen after the fall of the Warsaw Pact, and the resulting removal of Russian control.

Wings will be lengthened, much swearing will be involved. Intakes will probably need to be enlarged, which will involve more swearing. (In the interests of friendship, I waive copyright on any new words that may be invented.) It will have a single seat, because the canopy is terrible.

The engines will be changed from the WSK SO-3. Looking around Wikipedia tells me that the GE J85 would be a good choice, being much lighter, much smaller, and with higher thrust, and with the ability to have an afterburner. Which may or may not be part of this concept.

Here's the comparative specs:

WSK SO-3

Length: 84.7 in
Diameter: 27.8 in width, 30.1 in height
Dry weight: 708 lb
Maximum thrust: 2,425 lbf take-off, 2,205 lbf continuous

General Electric J85

Length: 45.4–51.1 in without afterburner (depending on accessory equipment installed)
Diameter: 17.7 in
Dry weight: 396–421 lb  (depending on accessory equipment installed)
Maximum thrust: 2,850–3,100 lbf (dry)

Smaller size and lower weight will allow for the installation of more recce equipment, such as cameras, electronics, ECM, air sampling, etc. Name might be changed to reflect the new role. Research...
Title: Re: PZL TR-1 Iskra
Post by: Tophe on March 08, 2020, 12:07:01 AM
Quote from: The Rat on March 07, 2020, 05:09:57 PM
Wings will be lengthened
Our friend PR19_Kit will love this! <_<
Title: Re: PZL TR-1 Iskra
Post by: PR19_Kit on March 08, 2020, 04:42:02 AM
Quote from: Tophe on March 08, 2020, 12:07:01 AM
Quote from: The Rat on March 07, 2020, 05:09:57 PM

Wings will be lengthened
Our friend PR19_Kit will love this! <_<


You're not wrong Tophe. ALL aeroplanes should be built that way.  ;D
Title: Re: PZL TR-1 Iskra
Post by: The Rat on March 12, 2020, 05:30:55 PM
Preliminary work indicates that this will definitely NOT be a 'silk purse from a sow's ear'. I don't think one could even make a sow's ear from it.  :banghead:

(https://scontent-ort2-1.xx.fbcdn.net/v/t1.0-9/88993341_10159126735483132_629670711291543552_n.jpg?_nc_cat=111&_nc_sid=730e14&_nc_ohc=wk76qFhoCskAX_1D02u&_nc_ht=scontent-ort2-1.xx&oh=9c84811b67048a4e2cc500bd3ff91e0f&oe=5F141402)

(https://scontent.fybz2-1.fna.fbcdn.net/v/t1.0-9/89029688_10159126736328132_8069173655650697216_n.jpg?_nc_cat=100&_nc_sid=730e14&_nc_ohc=OzzKjvX9BEEAX9uebQ7&_nc_ht=scontent.fybz2-1.fna&oh=0ddca7e6d521fa6f9be0a7285170a9ec&oe=5F1471A9)

Title: Re: PZL RT-1 Iskra
Post by: The Rat on March 12, 2020, 05:35:12 PM
Designation has also changed fro TR to RT, to reflect the Polish translation of Tactical Reconnaissance to Rozpoznanie Taktyczne. According to Google Translate, so blame them if I'm wrong.
Title: Re: PZL RT-1 Iskra
Post by: The Rat on March 21, 2020, 04:10:32 PM
Hacked apart a spare horizontal stabiliser from a CF-100, one wing extension done.

(https://scontent-ort2-1.xx.fbcdn.net/v/t1.0-9/90509628_10159209086318132_8444807256226136064_n.jpg?_nc_cat=111&_nc_sid=730e14&_nc_ohc=Cx6bWqt2hgQAX_zqwYE&_nc_ht=scontent-ort2-1.xx&oh=bd33a5ba719230f9ce7895cd4ec35bd5&oe=5F16DC9D)
Title: Re: PZL RT-1 Iskra
Post by: PR19_Kit on March 21, 2020, 05:32:31 PM
 :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup:
Title: Re: PZL RT-1 Iskra
Post by: Old Wombat on March 22, 2020, 03:54:38 AM
Quote from: PR19_Kit on March 21, 2020, 05:32:31 PM
:thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup:

Now, why doesn't that response surprise me? :rolleyes: ;)
Title: Re: PZL RT-1 Iskra
Post by: Dizzyfugu on March 22, 2020, 03:56:26 AM
Nice!  :thumbsup:
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 02, 2020, 11:19:56 AM
Both wings now extended, test fitting shows a nice outline. Intakes are being enlarged to accommodate the increased gulping of the new engine.

(https://scontent.fybz2-1.fna.fbcdn.net/v/t1.0-9/91973539_10159264808058132_137900671046254592_n.jpg?_nc_cat=108&_nc_sid=730e14&_nc_ohc=nmhZZNKtqHEAX8P8tti&_nc_ht=scontent.fybz2-1.fna&oh=b842ef28fe1fd6537e14fbb284fd5bfd&oe=5F1664B4)
Title: Re: PZL RT-1 Iskra
Post by: JayBee on April 02, 2020, 11:22:03 AM
This is just getting better and better.  :thumbsup:
Title: Re: PZL RT-1 Iskra
Post by: PR19_Kit on April 02, 2020, 11:35:19 AM
Two extended wings are always better than one, except in Tophe's world.  ;D
Title: Re: PZL RT-1 Iskra
Post by: chrisonord on April 02, 2020, 01:39:00 PM
Looking good  :thumbsup:
Chris
Title: Re: PZL RT-1 Iskra
Post by: Dizzyfugu on April 02, 2020, 11:30:28 PM
That's looking really good.  :thumbsup:
Title: Re: PZL RT-1 Iskra
Post by: Tophe on April 03, 2020, 02:22:21 AM
Quote from: PR19_Kit on April 02, 2020, 11:35:19 AM
Two extended wings are always better than one, except in Tophe's world.  ;D
I agree this model (so different with my ones) is elegant! :thumbsup:
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 05, 2020, 02:17:05 PM
Enlarged intakes are coming along. The parts that originally went under the wing are now on top, and a drop tank has been sacrificed to make the bottom. Wings are not actually glued on yet, but this gives an idea of the general look once they are. Still need to fair them in top and bottom. Puttying begins soon.

(https://scontent.fybz2-2.fna.fbcdn.net/v/t1.0-9/92446131_10159278982763132_2899970306330329088_n.jpg?_nc_cat=103&_nc_sid=730e14&_nc_ohc=Jyk-x8YfoHUAX-0ZvSY&_nc_ht=scontent.fybz2-2.fna&oh=739de9c31d628c2f2fea2a68d0b3e0da&oe=5F15AE2C)
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 21, 2020, 03:47:47 PM
Drop tank from the Airfix Seahawk is getting its mounts trimmed and becomes two conformal tanks. Rear seat is being deleted, so I can mount it in the middle without altering the C of G.

(https://scontent.fybz2-1.fna.fbcdn.net/v/t1.0-9/94127690_10159354614693132_416345436660432896_n.jpg?_nc_cat=101&_nc_sid=730e14&_nc_ohc=eEl8IRwVo_wAX9dgI7p&_nc_ht=scontent.fybz2-1.fna&oh=054e553ad26ce789121953543c899fdc&oe=5F160159)

(https://scontent.fybz2-2.fna.fbcdn.net/v/t1.0-9/94143723_10159354614828132_5629512943101018112_n.jpg?_nc_cat=104&_nc_sid=730e14&_nc_ohc=c0bkkrKhiakAX-PLQ0Z&_nc_ht=scontent.fybz2-2.fna&oh=823026bfc4065704f316e2bcbe76a805&oe=5F174D23)
Title: Re: PZL RT-1 Iskra
Post by: comrade harps on April 22, 2020, 12:04:22 AM
I've never been sure about whiffing conformal fuel tanks. The real ones (F-16 and Super Hornet Block  III) always seem to be shaped different to what you might expect. Still, proposed Eurofighter CFTs do look like halfed drop tanks, so I'm probably being too squeamish. I'm interested to see how these turn out.
Title: Re: PZL RT-1 Iskra
Post by: Dizzyfugu on April 22, 2020, 12:11:45 AM
Personally, I'd rather go with underwing (slipper) tanks - I am afraid that those fuselage tanks will destroy the Iskra's slender and clean lines that go so well with the long wings!  :-\
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 22, 2020, 09:12:24 AM
Quote from: Dizzyfugu on April 22, 2020, 12:11:45 AM
Personally, I'd rather go with underwing (slipper) tanks - I am afraid that those fuselage tanks will destroy the Iskra's slender and clean lines that go so well with the long wings!  :-\

That's what I was originally going with, but this struck me as a little more off-beat, plus it's easier than carving tanks to fit over a wing leading edge.
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 22, 2020, 05:58:39 PM
Major components now glued.

(https://scontent.fybz2-2.fna.fbcdn.net/v/t1.0-9/94521486_10159360418498132_1775297523183779840_n.jpg?_nc_cat=103&_nc_sid=730e14&_nc_ohc=mJjzebgh_AEAX9iIvga&_nc_ht=scontent.fybz2-2.fna&oh=f730266cd2791f8cb6bce6bbd900b1f2&oe=5F162940)
Title: Re: PZL RT-1 Iskra
Post by: The Rat on April 26, 2020, 04:00:33 PM
Okay, start the age-old U-2 fight; is it black, or very very very dark blue?

(https://scontent-ort2-1.xx.fbcdn.net/v/t1.0-0/p180x540/95099786_10159380081733132_3239176841864413184_o.jpg?_nc_cat=110&_nc_sid=8024bb&_nc_ohc=sGcPkQmdaksAX_T2F2t&_nc_ht=scontent-ort2-1.xx&_nc_tp=6&oh=4ee7962b99bdfb67e91eee9682a4bc4c&oe=5ECC1542)
Title: Re: PZL RT-1 Iskra
Post by: PR19_Kit on April 27, 2020, 03:52:34 AM
It's extra dark grey....................  ;D