"Johnny Google" wrote in message
oups.com...
: Hi all,
:
: I've been looking at the possibilty of buying and owning a 1977 Hawk
: XP that is very near its 1500 TBO.
:
: As I understand it, starting in 1979, the engine TBO went to 2000.
:
: What is the difference and can the 2000 TBO engine be put in the 1977
: Hawk XP?
: Or can the changes that make it a 2000 TBO vs 1500 TBO be applied to
: the enginer during a rebuild?
:
: What costs are involved in making this change?
:
: What other differences are there between a 1979-1981 Hawk XP and a
: 1977?
:
: Thanks,
:
: John
:


TBO number is just a recommendation for USA CFR 14 part 91 operations...