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Hangar Flying / VariEze on Ebay # 4599234526
« on: December 24, 2005, 04:08:26 PM »
So, to do a reality check:
A slightly more than casual glance at the photo tells a story. Compare it with the claimed performance specs, and it really does not add up.
Only a 118hp Lyc with a climb prop, cuffs(not removed), lower winglets, original p-51 ram scoop for engine cooling (not converted to a lower drag NACA), old style wheel pants, high drag upper cowl cylinder blisters, no mention of anything other than mags.
I strongly doubt it capabible of reaching 200 mph (TAS) straight and level (he may well see it on his GPS ground speed with a tail wind), 220 mph only in a dive (or in a very strong updraft pushing the stick forward). A 190 (TAS) mph cruise only at or near flat out. The fuel burn (at or near flat out) with that engine is much higher than 6 gph. That is a typical fuel burn for that engine with reduced power, and with all the airframe drag, he will need it near firewalled to maintain 190mph (TAS).
I base my obsrevations and comments on my experience with the west coast R.A.C.E. group (I have the data), my own experience in my 125 hp varieze(flown dirty like his, and later cleaned up), and many years flying with a rather large number of other Eze's (both cross country and in 16 races).
It takes a lot of hard work and drag reduction to get the performance claimed, and I don't see it on the Ebay Varieze.
Also, as noted in some Canard Aviators posts, many people claim numbers not close to reality, perhaps due to lack of proper effort to both record and verify good data.
I post this in support of Franks comments, and agree that there really should be truth in advertising.
John Lambert
A slightly more than casual glance at the photo tells a story. Compare it with the claimed performance specs, and it really does not add up.
Only a 118hp Lyc with a climb prop, cuffs(not removed), lower winglets, original p-51 ram scoop for engine cooling (not converted to a lower drag NACA), old style wheel pants, high drag upper cowl cylinder blisters, no mention of anything other than mags.
I strongly doubt it capabible of reaching 200 mph (TAS) straight and level (he may well see it on his GPS ground speed with a tail wind), 220 mph only in a dive (or in a very strong updraft pushing the stick forward). A 190 (TAS) mph cruise only at or near flat out. The fuel burn (at or near flat out) with that engine is much higher than 6 gph. That is a typical fuel burn for that engine with reduced power, and with all the airframe drag, he will need it near firewalled to maintain 190mph (TAS).
I base my obsrevations and comments on my experience with the west coast R.A.C.E. group (I have the data), my own experience in my 125 hp varieze(flown dirty like his, and later cleaned up), and many years flying with a rather large number of other Eze's (both cross country and in 16 races).
It takes a lot of hard work and drag reduction to get the performance claimed, and I don't see it on the Ebay Varieze.
Also, as noted in some Canard Aviators posts, many people claim numbers not close to reality, perhaps due to lack of proper effort to both record and verify good data.
I post this in support of Franks comments, and agree that there really should be truth in advertising.
John Lambert