XP Modifications, IO360 Conversion

[hilltop170]

As long as we're going rogue, how does nitrous oxide increase horsepower? That would be a good fix for only when you need it like on short field takeoffs. I've seen Cubs at the Valdez STOL contest use it and the results are amazing. Never saw one blow up either.

[wingnut]

As long as we're going rogue, how does nitrous oxide increase horsepower? That would be a good fix for only when you need it like on short field takeoffs. I've seen Cubs at the Valdez STOL contest use it and the results are amazing. Never saw one blow up either.

Take that rogue to the next level. Somewhere around here there is an old video of a P Navajo with freshly installed JATO doing a "proving" flight. Take-off roll and climb were very impressive

[blueldr]

----how does nitrous oxide increase horsepower?
Nitrous oxide provides additional oxygen for the ignition and burning of additional fuel introduced into the intake charge.

[hilltop170]

I know nitrous makes a Super Cub sound like a C-185.

I heard the military was out of JATO bottles, the last one to use them was the C-130 that carried the parachute team? It was awesome to see 8 JATOs light off at once and shoot that purple flame about 20 feet.

[hilltop170]

Yeah, that one!

[bagarre]

https://m.youtube.com/watch?v=WKCl3lfAx1Q

[GAHorn]

That Fat Albert pic is a great illustration of the "pitch" of propellers as they travel forward.

[Ryan Smith]

Whoa! That's something else! I had just left Iran when all that went down.

Were you born over there, Arash? I'd always assumed you were born stateside.

[Ryan Smith]

I was the last person in my family born over there. I remember not being able to speak a word of English. Now I can't speak Farsi if my life depended on it. I'll have to tell us the whole story over a few beers, but basically the Iranian F-4 Phantom was the reason my mom, dad, and I were able to leave there and stay in the US after the hostage crisis finally ended.

My little brother, who was born here, has spent more time in the Middle East (7th SFG ARMY) than I have! I think that's pretty cool.

That's cool! I'd love to hear it sometime! Where is your brother stationed?

[Ryan Smith]

He was at Ft Bragg in Fayetteville, NC for years but now he's enjoying the beach in FL at Eglin AFB.

[cessna170bdriver]

Arash,

The difference between 110 knots (optimistic for a stock 170, IMHO) and 120 knots on that trip to Vegas is 40 minutes ROUND TRIP at a cost of $100+ of fuel. Where the extra HP makes the 170 shine is being able to leave Big Bear or Tahoe in the summertime.

Oh, and check my map on facebook again. Alaska IS marked! What I'm missing is the upper midwest and the northeast.

[GAHorn]

Aryana, remember ground school...???
Drag increases as the SQUARE of velocity. More horsepower helps takeoff and climb...but the drag profile of your 170 doesn't change and that HP is not going to equate to huge gains in forward speed. The 182, using a TCM O470 or IO470 gained much of it's speed increase, not due to the HP, but due to airframe and fairing changes (cowl flaps, streamlined tail, better fairings, etc..)

I want an IO360 too...but for the takeoff climb / altitude advantage... not for speed. (But 10 kts might be what you could expect if you want to burn 11 gph or more.)

[GAHorn]

144 kts, 13 gph

[GAHorn]

My favorite ride was my C-206 which was powered by an IO-520.
I had been in the market for a 180/182 and realized the 206 would carry far more payload for the same speed and fuel burn.
The operating costs are significantly higher than simple 170's.
(I would have preferred a 190/195 but those ops-costs were waay too intimidating since I didn't follow my hero Richard into the petroleum-fields...but, look at the up-side!.... I can be a poor liberal and fly a 170! What a country!)

[johneeb]

...but, look at the up-side(that's where I am)!.... I can be a poor liberal and fly a "SUPED UP" 170! What a country!)