James

You're in luck... ::) The recommended radial is a UMS 150 to 180. Be thankful it is not a larger mass...it will still sound like the same hypersonic rattle of the T-28. It too is one of my long time favorites in its S.E.A. config . That is one HUGE coin aircraft. I'm fortunate to live in Houston with all its warbirds... three 28's. The TopRC T-28 is a 100% composite structure referred to as a "sandwich". That typically infers Hexcel hexagonal patterned layup...aka light weight 

Awaiting new pix.

If I'm not mistaken this airplane was in an automobile wreck while being transported to the model field a while back. 

Repaired as chronicled here on RCSB and lived to fight another day!

Ryan's P-40 also won Model of the Month recently.

Here are some photos of the Expert competition.  The Cub suffered a loss of landing gear on the last flight and is absent from our group photo.

I failed to get a picture of the Tigermoth

Here were the Expert flight scores as of Saturday morning with one flight to go and a drop of our lowest score yet to be excluded.  In the end it was Tom taking first, Ryan (me ) taking 2nd, and Larry taking 3rd.

Here were the static scores.  I'm not sure why Mitch was listed in Expert and Jeff was excluded.  Jeff may have been the 1000 since these were normalized scores.

Jeff - BF-109

Tom - Starduster

Larry - Cub

David - Crop Duster

Ryan - P-40

Jack - Tigermoth

Doug - Wildcat