Weight and space make this a total non-starter. The only benefit would be aesthetic, not performance and even then as a DHC-1 pilot I'd argue that aesthetically it would look like a dog turd on a hot summer's day. And there would be maintenance issues - the thing is expensive enough to maintain without spoiling it in this way
The only tangible benefit might be for ditching - the FRC's suggest 'abandon' rather than 'ditch' for obvious reasons.
Ps my son is also a Chipmunk pilot - has just told me that he thinks Art Scholl might have done such a conversion. Ugh
