Dan Schaefer says;
"Better than just using chocks, it's common practice (at least where I did my
first run-ups) to tie the mains to some sort of anchor - like a car or
whatever - with a couple of lengths of stout rope."

Just a(nother)  word of warning-- if the ropes are tied to the landing gear by the tire area--an extreme amount of stress is placed on the main landing gear actuator and --if hydraulic pressure is not available (ie circuit breaker pulled) -- the lock pin that holds the landing gear in the down position can/will be sheared.

Best situation-- is to perform 1700 rpm leak runs with cowling off and a full set of chocks.  If OK, Fully cowl the engine and after determining the brakes (if high-energy brakes used--make sure they are broken in--3--30 knots stops) and steering etc. are all normal.  Then do a full power engine check on a long runway. 5000 feet or more is plenty of runway for a IV if power is added promptly and the run is aborted at 80 knots. You will achieve 80 knots by approximately 1500 feet.  (Or less)  Extend the speed brakes/no flaps.  Take an observer-- to record data and all the engine fuel pressure/fuel flow-oil pressure/temperature . etc. etc.. Have copilot concentrate on engine instruments--you concentrate on airspeed , and outside the cockpit.  Do not fly! It will be tempting.


Charlie K.