Navistar International manufactures trucks from Class 5 through Class 8. Likewise, there are several classes of school bus based on GVW of the bus. That Navistar makes the bus chassis only tells me it is at least a 16,001 GVWR.
A school bus with a GVWR of 26,001 - 33,000 lbs. is, yes.
You can drive one with a Class C CDL with passenger and school bus endorsements, so long as the GVWR of the bus is 26,000 lbs. or less, but you cannot drive one without a CDL.
05mpg
No. For one, if the Gross Vehicle Weight Rating of the bus is 26,001 lbs. or more, that right there requires at least a Class B CDL. Furthermore, any bus of any weight rating which is designed to transport more than 15 passengers (including the driver) requires a CDL of a class appropriate to the vehicle (at least Class C for a bus under 26,001 GVWR; at least Class B for a bus of 26,001 GVWR or more), and this applies whether the bus is laden or empty.
There is no "school bus CDL". You either have a Class C or Class B CDL with a school bus endorsement. A Class C, you can drive any bus under 26,001 lbs. GVWR. If you get a hazmat endorsement, you can transport hazardous materials in any vehicle 26,000 lbs. GVWR or less. If you have a Class B, technically, you can drive any single vehicle with a Gross Vehicle Weight Rating of more than 26,000 lbs, but you're not going to get hired to drive a Class 8 with an unsynchronized manual transmission without any experience.
Varies by frame length, number of seats, etc. Typically, anywhere from 22,000 - 33,000 lbs. GVWR - that's fully loaded.
I have 24 years experience in public transit. A forty foot transit bus has a GVWR of about 40,000 Lbs while the same make of bus in the twenty nine foot length is about 30,000 Lbs. The bottom line is that it varies a little by model and a lot by length. Even the "short" type school bus is likely to weigh in at 26,000.
HGTV Design Star - 2006 School Bus Makeovers 8-6 was released on: USA: July 2013
My 1979 International 1723 gas school bus weight is 21,700 lbs. The 1980 should be very similar. I wouldn't think Gas v/s Diesel would change the weight that much.
The weight listed on the data sticker on any vehicle is the Gross Vehicle Weight Rating--the maximum rated weight. This includes driver, passengers, fluids, cargo and tongue weight of a trailer--but not the axle weight of the trailer. A standard school bus will have around a 25,500# GVWR. The Curb Weight (full fluids, no driver, passengers or cargo) will be around 15,000#, give or take. The Curb Weight is not listed on the data sticker.
By visually inspecting them.
Damage, play/wobble, squealing while in operation.