bprevost12
Registered User
the 26, 29 , 31 i have 850*6 right now. i'm afriad if i put some tundra tires on I lose some airspeed?
How much airspeed does a person lose with tundra tires?
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Christina Young
Registered User
Andover-Aeroflex, 12N
I just recently went from the 26" Goodyears to the 31" AK bushwheels in preparation for my Alaska trip. I was pleasantly surprised.... I think I lost 1 mph maybe! It was negligable.
I certainly lost the most airspeed shortly after I got the plane when I went from the stock little tires to the 26" GY, maybe 10 mph (from ~ 110 mph airspeed to 100 mph airspeed). But I also added the VG's at the same time, I probably lost a little there too.
I certainly lost the most airspeed shortly after I got the plane when I went from the stock little tires to the 26" GY, maybe 10 mph (from ~ 110 mph airspeed to 100 mph airspeed). But I also added the VG's at the same time, I probably lost a little there too.
cabinflyer
Registered User
Lawrence Lake, Mn
What you loose in airspeed you gain in status.
Now that's good!!
I think I'm going to paint that on my cowling
Now that's good!!
I think I'm going to paint that on my cowling
Alex Clark
Registered User
Life Long Alaskan
Of course you would then need to go to a climb prop to make the extra AOA from the 31s worthwhile. Then things slow down. My old beater S.C. with 31s and an 82x42 prop was doing good at 80-85mph.
But she jumped off sand bars pretty fast.
But she jumped off sand bars pretty fast.
On Patrol
BENEFACTOR
Wentworth NH" The WAD" NH96
Christine,
31" Bush Tires, VG's, Borer Prop. 82/43 and a Thustline Mod can achieve 42MPH and land in 200'. Lands before you hit the quonset at Trinca and Cruises at 90MPH. All for the cost of approx. $9,000.00 Who knew that flying the Comanche in the knot world at 165KTS at 15GPH was so different from Flying Miss Daisy. However this last year while flying home from Millinocket to Pembroke the fog closed in around Portland south and I turned around and in 30 miles landed in my buddies farm field in China in 800' Something you cannot do in a Comanche.
John
31" Bush Tires, VG's, Borer Prop. 82/43 and a Thustline Mod can achieve 42MPH and land in 200'. Lands before you hit the quonset at Trinca and Cruises at 90MPH. All for the cost of approx. $9,000.00 Who knew that flying the Comanche in the knot world at 165KTS at 15GPH was so different from Flying Miss Daisy. However this last year while flying home from Millinocket to Pembroke the fog closed in around Portland south and I turned around and in 30 miles landed in my buddies farm field in China in 800' Something you cannot do in a Comanche.
John
Christina Young
Registered User
Andover-Aeroflex, 12N
Flying Miss Daisy said:
The quonset at Trinca is a lot more than 200'.... ;-) Mine has a 82/42 Borer and stalls power-off at ~ 33 mph full gross [Damian is my witness ;-) ].... Cruise at ~ 98 mph.
Christina Young
Registered User
Andover-Aeroflex, 12N
Are you saying it's 150' to the quonset???? I'd estimate 250' at least, but I'm sure Damian has it all measured out. BTW, I just banged the berm the other week.... good thing I have that new gear on. ;-)
bprevost12
Registered User
I love my cub! but my most enjoyment is in the pitts s2b! 180 mph pulling a 6 g pull to the vertical is better for me then landing in 200 feet. anyday
but it's preeety close! : close to wow wee factor though in the cub
but it's preeety close! : close to wow wee factor though in the cub
jimpattensc
Registered User
Utah
airspeed lost with tundra tires
Cubcrafters (pre cert), extended wings, vg's, extd gear, cables, climb prop, belly pod...26 Goodyears to 31 ABW's, lost 1-2 mph, but really helped landing...full stall 2 point, about 1 ft tail high, not sure of exact speed because I am going by feel at that point...cruise 98 mph at 2600 w. 44 gal and 300lbs.
Cubcrafters (pre cert), extended wings, vg's, extd gear, cables, climb prop, belly pod...26 Goodyears to 31 ABW's, lost 1-2 mph, but really helped landing...full stall 2 point, about 1 ft tail high, not sure of exact speed because I am going by feel at that point...cruise 98 mph at 2600 w. 44 gal and 300lbs.
aktango58
FRIEND
18AA
BIG ENOUGH 
Thems fighting words in this place!!!!!!!
Still trying to get a set approved like TJ's! 8)
Seriously, depends on what and where you use the plane. For me, mostly I could use the 8:50s, but when I touch that one rock.......
So thoes of you changing tires, especialy on the big engines, how does it affect your fuel burn? I used to lose 5 mph between airstreaks and floats, but used 20% more fuel to do it. Same RPM, just took more throttle to get there.
Thems fighting words in this place!!!!!!!
Still trying to get a set approved like TJ's! 8)
Seriously, depends on what and where you use the plane. For me, mostly I could use the 8:50s, but when I touch that one rock.......
So thoes of you changing tires, especialy on the big engines, how does it affect your fuel burn? I used to lose 5 mph between airstreaks and floats, but used 20% more fuel to do it. Same RPM, just took more throttle to get there.
