Two models from the Wade Kloos design stable, both models are scale EPP Foam kits from Durable Aircraft Models in the US.

1/7th scale 66" span Supermarine Spitfire from the DAM EPP kit. 

This model was used to prove the concept of scale EPP kits, and the lessons learnt from the Spitfire prototype have been used to develop later models and EPP kits.

Unfortunately the Spitfire never went into production as a kit.

Impressive 1/10th scale Lockheed T-33 Shooting Star, built by Wade Kloos from his own EPP kit. 

Model spans over 72" and can be fitted with flaps to improve soaring in light lift.