Spad 7 performance figures

Can anyone tell me what the 2,000 meter time-to-climb figures are for the 180hp Spad 7. (Both standard and "Bleriot wing" versions, please) The information I've been told (2,000 meters in 4min, 40sec) seems a bit optimistic, and seems more in line with the 220hp version of the Spad 13.

Dean

PS. Which was produced in greater numbers, the standard winged version or the "Bleriot wing" version?

[Dan_San_Abbott]

Dean:
I wish to refer you to two excellent articles writen by the reknowned Aviation Historian, J.M. Bruce, ISO,MA,FRAeS,FRHistS. entitled,"THE FIRST FIGHTING SPADS", AIR ENTHUSIAST, Fifteen,April - July 1981, and Spad 7C.1, 8 Wind-Sock Datafiles,
Neither article mentions a "Bleriot wing". All French, British and Russian built SPAD 7c.1 had the same wings. Are you thinking of the SPAD XIIIc.1? The perfomance data for the SPAD 7c.1 with the 180 HP Hispano-Suiza 8Ab engine @2000 meters from French official records were:
airspeed;212 km/hr; climb to 2000 meters, 4 min 40 sec.; service ceiling, 6553 meters,(21500 ft.);Duration 1hr. 30 min..
Blue skies,
Dan-San Abbott

[Ron_F]

Dave,
you must be refering to the caption in squadron signals old publication of the spad series. apparently, there was (according to the book) performance figures for the standard wing, and a Bleriot wing. also, tests were the same with a 'flat' wing as with the Bleriot. so, that could be the same. how the name arose is not known. but it was considered a better performer with that 'wing'. climb to 2000m in 5 min 50 sec.

other books i have dont mention it, so its hard to say if there was such wing mod or not...

Bleriot did make spads for the RFC, and they can be distinguished by no louvers on the forward fuse panels, left side. not all used by the RFC were Bleriot built, naturally. most relegated to training or middle east use it seems.

fwiw,
Ron

Gentlemen,
First, thanks for the response. Yes, the 5min, 50sec time is what I also have for the 180hp Spad 7(Bleriot wing), as per "Spad Fighters in Action" by Connors. The 4min, 40sec time is shown for the 220hp Spad 13 with the Ratmanoff propellor.
"S.F.i.A." definitely states it was the Spad 7 with the Bleriot wing. Is it in error? Are there other sources besides those already listed?

Dean

Anyone else have different sources?

[Dan_San_Abbott]

Gentlemen:
from the same source as my previous thread, the OFFICIAL FRENCH DATA for the SPAD 7c1 is:
150 hp Hispano-suiza 8Aa with standard wings, to 2000 m, 6min40 sec., 187 km/hr
150hp H-S 8Aa, 19msq. wings (larger) to 2000 m, 6min 55sec., 185 km/hr.
150hp H-S 8Aa, "Flat Wings" to 2000 m, 5min 50 sec. 194 km/hr
180hp H-S 8Ab, standard wings, to 2000 m, 4 min 40 sec. 212 km/hr.
John Connors in SPAD FIGHTERS in action, Squadron Signal Publication Aircraft Number 93 is some what nebulous about the origin of the term and"Bleriot Wing" and to which one it applies to. In any event, the 19 sq. meter wing anf the flat wing were experimental and were used in test conducted by the French Section Technique l'Aéronautique (STAé). The two wings were not adopted for production, so other than the experimental wings no more were made. A lot of John Connors material appears to have come from Jack Bruces articles.
Blue skies,
Dan-San Abbott

Dan-San,
Thank you, sir. That clears up a lot of confusion.

VBR,
Dean