Unfortunately we have no specifications available yet. As soon as these are published I will put a note on the RCV technical support area on this forum, as well as highlight this on our website.
What I can say is that it is similar in height to a .70 4-stroke rather than a 1.20 4-stroke.

With regard to ARFs suitable for the RCV90SP, really you could opt for any which suggest a .60 2-stroke or .90 4-stroke. Check out the gallery section of our website to see some examples from RCV users - [link=http://www.rcvengines.com/gallery/rcv_gallery_90sp.htm]http://www.rcvengines.com/gallery/rcv_gallery_90sp.htm [/link] . In the future I will look at adding a list of warbirds to the website. If you have any queries regarding a specific model, we are always happy to give advise.

Best regards
Laurenne