Heinkel He-111 Manual

[Anw.StG2_Tyke]

Well, I found an interesting page of the Heinkel He-111 Manual, which might somebody is interested in, i put it here because the relevant topics are already closed...

http://www.deutscheluftwaffe.de/archiv/Dokumente/ABC/h/Heinkel/He%20111/Kurzbetriebsanleitung%20He%20111%20H%20fuer%20Besatzung.pdf

 

Interesting are for me the pages 30 to 32. They are pretty strict with what the pilots were allowed to do and what not. Good data there.

[DD_bongodriver]

I can't read German, would love to read the section on the low level aerobatics limits.

[SYN_Bandy]

Yes, if not too much trouble, please provide a translation since we can't block/copy text from a pdf page image to paste in a translator.

 

Thank you.

[Anw.StG2_Tyke]

I can't read German, would love to read the section on the low level aerobatics limits.

I can try to translate it:

p. 30

5) The stress of the airplane in turning flight or recovering (for e.g. from a dive) have to be hold low, related to the approvalgroup H3. The allowed transversed gradient of 60° in a bank shouldn't be  exceeded.

6) aerobatics are prohibited

7) is in the beginning about some specifications of the gear, but there are again an interesting table.

Table c) Maximum allowed speeds for the following specific flightstates:

480 km/h in gliding flight, from 0 to 3000m height

455 km/h in gliding flight, in 4000 m height

430 km/h in gliding flight, in 5000 m height

405 km/h in gliding flight, in 6000 m height

 

Whatch the limit indicator at the airspeed indicator

250 km/h with lowered gear

240 km/h at ground level with bad weather

200 km/h at lowering or retracting the gear.

 

The given speeds are related to the speeds shown in the airspeed indicator

 

d) Common Flightbehaviour

 

The plane is in all axis stable enough and is suitable for blind flight. The control surface of all ruder is good and for every case sufficient.

While extracting the flaps, the aileronforces are increasing heavily.

 

While overpulling the plane at ~135 km/h (when the gear is retracted, flaps are in 0-position) or at 115 km/h (at idle, lowered gear and flaps for landing) the ailerons are reversed. When the ailerons aren't getting hold tight (the needed forces are pretty high), the plane does a pitch to the aileron axis.

 

As soon as the plane gets speed back, this heavy and suddenly occured state is gone and the plane is again normal to fly.

 

When you come near to the overpulled state of the plane, this state is recognized by unsettled ailerons, the plane must be instantly pushed down to recover speed. You have to push down untill the Handwheel( I think they mean the stick) of the ailerones shows again forces and moves itself to the middle. After that you have to begin slowly to recover the plane. Because from the point of bank (what is desrcibed above) until to the point to recover to horizontal flight, it is atleast 300m of height needed, so this abnormal flight state should be avoided and is not allowed in low altitudes.

 

If you hold the ailerons stiff from the begining this banking effect shouldn't appear.

 

At landing, the plane doesn't show any indications of a turning around the aileron axis.

 

 

Hope it is somewhat understandable... its interesting, how harsh for a german manual it is written what is allowed and what not.

[Lusekofte]

Thx Auva

[HeavyCavalrySgt]

Interesting about the aileron reversal/ineffectiveness going that fast.  The way this is written it sounds almost like a MiG 15 or 17, with those swept wings and ailerons that stop working if you get slow on your approach.

[LLv34_Flanker]

S!

 

 Also interesting to see that over 60deg banking was not allowed in a turn. Interesting to read that manual.

[indiaciki]

S!

 

 Also interesting to see that over 60deg banking was not allowed in a turn. Interesting to read that manual.

 

If your german is good... I have most of the german manuals 109s and ju-87s. In case you haven't read them.

[LLv34_Flanker]

S!

 

 Always interested Very good practise to keep German language in memory, not to waste 6 years I used to learn it in school