Heinkel P.1080 Eric Son in 1/48 scale

[Isaac]

The engines are side mounted and require the fuselage to be cut as shown.






Isaac

[Isaac]

The nacelles are basically are long cylinders that are shaped wide to narrow going aft.



Eric provided the cross section formers for the parts. However, since I will be using the inner flow-path, these will be difficult to use and I just omitted them.









Isaac

[Isaac]

And here is what they look like next to the fuselage




dry fit





And glued on



You can see thru the flow path.



Note,
since this is a simple model and I really did not know what is visible from the inlet side of this ram jet, all is omitted . There is an engine plate and a conical section not used.




Isaac

[Isaac]

There is a nice fairing that gives it a nice finished look that spans the interface of the fuselage to the engine nacelles.






Nice fit



Isaac

[YOAVHOZMI]

cute and nice model...well done my friend.

YOAV

[eric_son]

Actually, I'm not really sure if the lorin ramjet had an inlet cone.
So I just created an inlet cone based on the diagrams I found via Google and pushed them back a bit for aesthetic purposes.

Months after I finished the design, I found this: The ramjet, past, present or future ? and this: Ramjet

Looks much more "correct" for the vs. the cone intake.

I'll update the design when I get the time.

[Isaac]

Eric

Unless you have a cross section of the actual proposed ram jet engine, I would not rely on generic information. The cone may be a variable area intake device and its position may critical.


Another thing that I do not understand is how they planned to get this plane up to speed. The ground cart can only get you airborne , the ram jet needs about 400 mph before it can develop thrust. So either air drop or some booster rockets needed?

Anyhow, a fun project.


Isaac

[Isaac]

My only modification to the design is to use wood sticks as wing spars. Those where inserted flat side up thru to the fuselage. I then added the inner rib to the sides and card material above and below to use as an inner glove for a smooth fit. I thought it would be a sturdy wing attachment.





The fit was very good.





Isaac

[eric_son]

RE: getting airborne
I saw some "drawings" of this having detachable booster rockets much like the ones on the Natter.

[Erik Zwaan]

Hi Isaac, coming along very well. I find these experimental planes quite interesting. When I read your thread (that rimes nicely) I also wondered how they would give the plane its initial speed as it seems that the ram type jet principle requires external power to get it started.

Regards,
Erik