USMC227
Active Member
- Joined
- Jun 5, 2007
- Messages
- 44
Hi all,
Please forgive my ignorance. I’m a two time soloed student pilot and haven’t flown in probably 30 years. I’m building a plane and will resume flight training in a couple of years.
I see all the different airspeeds and understand the definition of each. Here’s my question. A manufacturer will have a never exceed speed and I guess this is because of flutter or other forces putting too much stress on the airframe. The Zenith 650 is 160 mph. The max cruise at sea level 138 mph.
So does this mean that, for example, a plane would indicate 138 mph at 8,000 feet and that would correct to a faster actual speed and this corrected airspeed can not exceed 160 mph?
Or does it mean 160 mph indicated airspeed regardless of altitude?
The Bearhawk B lists a max speed of 175 mph IAS. That would be a good bit different between sea level and 8000 I think. But then cruise, (depending on engine), 135-150 mph true airspeed, which would be something above IAS. Correct?
This is so confusing.
Please forgive my ignorance. I’m a two time soloed student pilot and haven’t flown in probably 30 years. I’m building a plane and will resume flight training in a couple of years.
I see all the different airspeeds and understand the definition of each. Here’s my question. A manufacturer will have a never exceed speed and I guess this is because of flutter or other forces putting too much stress on the airframe. The Zenith 650 is 160 mph. The max cruise at sea level 138 mph.
So does this mean that, for example, a plane would indicate 138 mph at 8,000 feet and that would correct to a faster actual speed and this corrected airspeed can not exceed 160 mph?
Or does it mean 160 mph indicated airspeed regardless of altitude?
The Bearhawk B lists a max speed of 175 mph IAS. That would be a good bit different between sea level and 8000 I think. But then cruise, (depending on engine), 135-150 mph true airspeed, which would be something above IAS. Correct?
This is so confusing.
