Calculating the best angle of climb speed
Thread Starter
Join Date: Mar 2007
Location: Pakistan
Age: 61
Posts: 127
Likes: 0
Received 0 Likes
on
0 Posts
Calculating the best angle of climb speed
Hi,
I fly the Grob G115 TA. I am looking for help to calculate the best angle of climb speed for a short field take-off. There is nothing given in the POH. Thanks.
I fly the Grob G115 TA. I am looking for help to calculate the best angle of climb speed for a short field take-off. There is nothing given in the POH. Thanks.
Join Date: Feb 2005
Location: flyover country USA
Age: 82
Posts: 4,579
Likes: 0
Received 0 Likes
on
0 Posts
Do your own tests. Fly a series of climbs at different IAS; note the ROC for each climb. To be all pure, make note of OAT, pressure altitude etc. as well.
Enter IAS and ROC points as x-y pairs in a spreadsheet.
Then convert each IAS to ft./min. so speed units are the same as ROC.
Then divide each ROC by its associated IAS; you get a series of climb gradients. find the most favorable one, and the associated IAS is the one you want.
You can even plot the points (gradient vs IAS) to make a pretty graph.
Enter IAS and ROC points as x-y pairs in a spreadsheet.
Then convert each IAS to ft./min. so speed units are the same as ROC.
Then divide each ROC by its associated IAS; you get a series of climb gradients. find the most favorable one, and the associated IAS is the one you want.
You can even plot the points (gradient vs IAS) to make a pretty graph.
Join Date: May 2003
Posts: 409
Likes: 0
Received 0 Likes
on
0 Posts
Here's a great article on how to do it, this gentleman John Lowry knows his physics and his English.
The Bootstrap Approach to Aircraft Performance<br>(Part One Fixed-Pitch Propeller Airplanes)
I read it 10 years ago and was very impressed. Hawk
The Bootstrap Approach to Aircraft Performance<br>(Part One Fixed-Pitch Propeller Airplanes)
I read it 10 years ago and was very impressed. Hawk