No , but theyre almost a HP 40 , if youre after noseweight .

I believe a few ( Maikus amougst others ) have used Speed 40s .

Ive looked at the Speed 60 RV , and think it should be suitable .

The HP 40 ' they ' drop the Timing to 130 / 110 . Stock I think some of the 60s are that , or 140/120 . a ' spacer ' as piston stop ,
to find 130 Ex , and thats the ' drop ' you need to machine in the case top for the liner . First Checking the piston skirt wont ' unport ' at TDC . Like a FSR 40 does 

just looking at the scetre flight reviews , most are 142/ 120 , but some later are 150 Ex, There were / are some ABC too . Id think 150 Ex may be a little high , 4 in pitch prop like.
so would pay to throw a protractor on and see . Did I mention theyre not light . V similar to the HP 40 , which are V good at 130 Ex , both F & R induction . the RV may be better .


Er , the RV 40 with the 130 timing is still a 4 in pitch prop sucker , for the wind . Tho I believe over there 12 & 11 x 6s were used on em , Bob Mc Donald etc etc . Just hold on, Tight .
 

Dunno how old this is , was just looking for a picture .


Seems theres some trash for sale, sometime . Sprekinsiedeutshe .https://antiquemodelenginesrunning.blogspot.com.au/2014/07/webra-speed-61-rv.html