Jump to content
dog1

JU88 cruising temperatures

Recommended Posts

some questions i need help with 

1) if the engines are too cold will they seize in flight ?

2) what is the optimum cruising speed to avoid  damage .

3) climbing takes time  , what is the best speed for climbing and for how long before leveling . 

4) cowl flaps opened at 100 % at take off , reduced to 50 in flight in warm weather . still  the engines get damaged .

5) in winter the temperature of the engine goes below 60 dgrs  , will this cause damage ?  

Edited by dog1

Share this post


Link to post
Share on other sites

1) I cannot see this to happen in cruise any more; you should keep those cowl flaps so closed as possible to keep the speed up anyway.

2) I run ~78% both RPM & Throttle which gives you the maximum continuous power.

3) You can run 30 mins climb power (~87% both). I try to keep the speed around 260-270 during the climb.

Edited by Hanu

Share this post


Link to post
Share on other sites

both my engines are damaged 3-4 mn after take off  , height 300 mt , cowl flaps full open temperature below 60 dgrs , acceleration below 65 %  speed 200 kmhr . and still both engines  get damaged . i am not reducing prop speed . pitch zero . i am hardly 3-4 km away from my airfield and kaput . do the engines get damaged if below 60 dgrs for 2-3 mn ? i am not lasting 5mn in the air at 65 % acceleration 200 km hr  . If i dare to climb i have to increase the speed for 2-3mn then i level again because i'm worried the engines will seize and then  they seize anyway  !!

Edited by dog1

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...