Towerkote is an Econokote "2nd". It is thinner than Monokote and although it is a low temp film, it tends to get brittle quickly. The adhesive is of marginal quality and if you decide to paint the airframe with Balsarite or SIG StixIt for proper adhesion, any weight savings will be lost.

For planes with a short life expectancy (combat planes) it is probably a good choice.

For planes you want to keep awhile I suggest a decent covering. If you want/need low heat use Ultracote, if you need a fabric go with SolarTex (or any of the "Tex" coverings). If you need a super lightweight covering (.6 oz per sq yd, that is point 6 oz !! ) use Solarfilm or Micafilm. Be aware that neither of the super lightweight films are fuel proof and due to the inherent static electricity, can be "interesting" to apply.