B-25 Cruise Speeds
Thu Feb 14, 2008 9:07 pm
What are the current cruise speeds for B-25's? I'm assuming they are around 180-190 MPH.
Thu Feb 14, 2008 9:33 pm
185-190 mph is typical for Briefing Time
Fri Feb 15, 2008 12:03 am
"Show Me!" & "Axis Nightmare" are 170 to 180, and Jim Terry's "Pacific Prowler" is 190+ with the small bubble in place of a top turret.
Fri Feb 15, 2008 12:13 am
Old Glory will do 195 MPH at 28" 1800
Tondelayo does 185 MPH at 27" 1700
Tondelayo does 185 MPH at 27" 1700
Fri Feb 15, 2008 5:13 am
haven't you guys heard of knots???
Fri Feb 15, 2008 5:22 am
haven't you guys heard of knots???
are you referring to indicated {IAS} or true {TAS}??
are you referring to indicated {IAS} or true {TAS}??
Fri Feb 15, 2008 11:16 am
Those are IAS. They will vary with weight and drag etc. . When I test flew "Wild Cargo" we were indicating 200 MPH at 21" and 1800 RPM. No turret, paint, etc - stripped - an empty weight of 17,300 lbs. We wont see that again once its finished.
Unless the ASI's have been converted (flew one 25 that had been) they are placarded in MPH and the manuals and limitations are in MPH. However, Navy aircraft of the era were in referenced in KTS.
For Knots, to obtain TAS below FL180 simply increase the IAS by 2% for each one thousand feet of altitude above sea level. Above FL180 its 1.5%.
Unless the ASI's have been converted (flew one 25 that had been) they are placarded in MPH and the manuals and limitations are in MPH. However, Navy aircraft of the era were in referenced in KTS.
For Knots, to obtain TAS below FL180 simply increase the IAS by 2% for each one thousand feet of altitude above sea level. Above FL180 its 1.5%.
Fri Feb 15, 2008 12:45 pm
Army aircraft only know how to fly in miles per hour and Navy aircraft can only fly in knots. 
Fri Feb 15, 2008 2:05 pm
I remember a B-25 I flew many years ago without a turret 1800/28", we were indicating approximately 210 mph.
Fri Feb 15, 2008 3:58 pm
Thanks for the information.