I am finishing a 601HDS that is fitted with a Subaru ea81 motor. The water cooling radiatior is fitted under the fuselage, close behind the front undercarriage. As there is no stop on the front undercarriage, it is possible for the wheel spat to impact with the underside of the radiator.
What is the best solution to this problem?
I have contemplated fitting a pair of steel cable stops to the front undercarriage to limit their travel and also to relocate the radiator further rearward so it is completely clear of the wheel spats. This will of course have an impact on the aircraft's weight and balance, moving the C of G rearward.
Any advice appreciated.