Jump to content

As a result of the close-down of the UK by the British Government last night, we have made all the Buy/Sell areas read-only until we open back up again, so please have a look at the announcement linked here.

This site uses cookies! Learn More

This site uses cookies!

You can find a list of those cookies here: mysite.com/cookies

By continuing to use this site, you agree to allow us to store cookies on your computer. :)

Tweener

Tupolev I-8 / AHT-13 Conversion

Recommended Posts

Hello all

 

While reading up on the Tupolev I-4 series and planning future builds and conversion of them, I came across the AHT-13, prototype of the I-8. The aircraft was essentially a redesigned I-4 with an imported Curtiss Conqueror engine.

The aicraft did not enter production because the USSR had no plans to import or produce the Conqueror engine and no local alternative was available. In spite of that, flight tests appear to suggest that the aircraft flew well, being the

first Soviet design to pass 300 km/h in level flight. 

 

My question is, given my interest in modelling all the variants of the I-4, from AHT-5 Prototype, to Production I-4, Mid-Production I-4Z (smaller lower wing), and Late-Production I-4bis (with lower wing removed entirely), and now, the I-8, where could I find a suitable nose and set of landing gear to graft onto the I-4 fuselage?

 

 

I-4 (AHT-5)

Tupolev I-4 (AHT-5)

 

I-8

ANT-13 2

 

Thanks, Tweener

 

Share this post


Link to post
Share on other sites

Wow, that's quite a challenge, especially taking into account that not much is known about I-8, just a couple of photos and primitive plans.

I know one guy who tried to do the conversion from I-4 using Frog Miles Magister as a donor for the nose, I don't know if it was successful or not

 

6643413.jpg

 

I-4Z, do you mean the plases that were used with "Zveno" compound system? 

 

Good luck, watching with interest

 

Share this post


Link to post
Share on other sites
10 hours ago, Pin said:

Wow, that's quite a challenge, especially taking into account that not much is known about I-8, just a couple of photos and primitive plans.

I know one guy who tried to do the conversion from I-4 using Frog Miles Magister as a donor for the nose, I don't know if it was successful or not

 

6643413.jpg

 

I-4Z, do you mean the plases that were used with "Zveno" compound system? 

 

Good luck, watching with interest

 

I was thinking the old Monogram P-6 E might work well, but I will give the Magister a look as well. Thanks for the plan comparison too, that will prove invaluable - I had not realized the difference in head rest shape or rudder yet, somehow. One thing is for sure, I want to finish at least one normal I-4 before I go too crazy. By the time I do the kit twice I should have a pretty good idea of how it works.

 

By I-4Z, I do mean the Zveno fighters. I doubt I will make the TB-1 to carry them, but who knows what the future holds. It would certainly be a fun project, and I do have my eyes on the Mikro-Mir kit.

 

Thanks, Tweener

Edited by Tweener

Share this post


Link to post
Share on other sites

I would suggest to do scratch work on this fuselage. It would be better than adopt any non-related one. BTW - this is Andrej Nikolayevich Tupolev, so ANT (cyrylic "H" is "N" ) :)

Cheers

J-W

 

 

Share this post


Link to post
Share on other sites
3 hours ago, JWM said:

I would suggest to do scratch work on this fuselage. It would be better than adopt any non-related one. BTW - this is Andrej Nikolayevich Tupolev, so ANT (cyrylic "H" is "N" ) :)

Cheers

J-W

 

 

Unfortunately a conversion using other parts is really my best option having never scrapped anything similar before, and being unable to make use of a vac machine or anything of the like. My plan is to ask for measurements of the nose of the monogram and olimp P-6 kits and go from there.

Share this post


Link to post
Share on other sites

There are only two photos known of I-8, the other being

i8-1.jpg

 

And the scheme

 

i8-1.gif

 

 

The plane was powered by  Curtiss V-1570 Conqueror, so P-6 may be right choice if you want to kitbash although I would not choose this path and rather use the scheme above scaled to dimensions:

 

Wingspan 9.00m

Length 12.78m

Height 3.34m

Wing area 20.00m

 

Share this post


Link to post
Share on other sites
10 hours ago, Pin said:

There are only two photos known of I-8, the other being

i8-1.jpg

 

And the scheme

 

i8-1.gif

 

 

The plane was powered by  Curtiss V-1570 Conqueror, so P-6 may be right choice if you want to kitbash although I would not choose this path and rather use the scheme above scaled to dimensions:

 

Wingspan 9.00m

Length 12.78m

Height 3.34m

Wing area 20.00m

 

I am starting to think it may just be easier to convert a P-6 kit than an I-4 kit now that I really look it over again. Guess I will have to buy one and go from there...

 

Share this post


Link to post
Share on other sites
On 9/30/2018 at 8:12 PM, Tweener said:

By I-4Z, I do mean the Zveno fighters. I doubt I will make the TB-1 to carry them, but who knows what the future holds. It would certainly be a fun project, and I do have my eyes on the Mikro-Mir kit.

I did a Zveno-1 some years ago - using a vacform TB-1 with two Nakotnes I-4's....

 

szveno02.jpg

 

I also did an 'Aviamatka' (Zveno-6) - with FIVE fighters attached to an ICM TB-3 :-

 

Zveno_31B.jpg

 

Have fun....

 

Ken

 

Share this post


Link to post
Share on other sites

AirKits makes resin I-4Z ( 049 )

1162369-15048-36-720.jpg

 

but Alexander temporarily does not take new orders

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...