Polini 303 fuel burn test - How did it perform!

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How much fuel did I use in 1 hour. To fly further and for longer, understanding your fuel burn, a few tests need to be conducted. I tried to fly a typical flight for exactly 1 hour and see what the fuel burn would be. The link to the Polini website is below and it will show the fuel burn figures at 4500 rpm.
www.polinithor.com/en/thor-30...
To best understand how their figures relates to real world, the NiNE at hands off trim ( fixed trim) is about 53 mph and requires 6300 rpm to remain level in flight.
The tank contained 16 litres before engine start and a complete flight cycle of Start, warm up, taxi take-off, cruise, land and taxi back in.
I frequently get asked about the kit I use, all links or names are below.
compass mount
www.etsy.com/uk/listing/11567...
Chin guard/ visor air dam:
microavionics.com/products/ne...
Compass Silva Un70.
My PeaBee radio and communications set up is:
ICARO SCARAB Helmet with MicroAvionics PM100 Bluetooth (Vlog modified by MicroAvionics)
www.microavionics.com/paramotor

My Airband radio ( I have the appropriate Licence) is :
www.microavionics.com/ Yaesu FT450 FTA .
Engine instruments:
Trailtech TTO Tech and CHT
Fuel gauge - Tiggy Aviation
Tiggy fuel flow and quantity device - Soon to be an upgrade coming out.
GPS
NAVITER OUDIE 5 PRO with FLARM
SkyDemon
Electronic Conspicuity device
SkyEcho 2
Camera and Microphones:
Flight Briefing room
Video Camera 4K Camcorder ORDRO WiFi Ultra HD Vlog Camera and a ICE BLUE microphone
Flying cameras
GoPro 3+, GP6 and 7 with audio adaptor.
Camera Mounts/ cases
flybubble.com/flytec-bumblebee
www.flypureair.co.uk/store/Ca...
Flying Clothing:
FlyKandy Jacket and trousers
OZEE flying suit EXEAT and 30seven gloves
Sealskinz mittens
Editing software
Adobe Premier elements
Music - Epidemic Sounds - Subscription.

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Опубликовано:

27 мар 2024

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Комментарии : 118

@huffdaddy3845 3 месяца назад

First! Mostly they are just called trikes. I think delta trike is commonly used in the paramotor community. I think the name delta wing may have its origin with Bill Bennett, an Aussi hang glider pioneer, who's company was called Delta Wing Kites and Gliders back in 1969. I got to meet Bill in the early 80s in Southern California. He was a really nice guy.

@GolfFoxtrot22 3 месяца назад

Hi Sam, I hope you are keeping well? Thank you for the detail on the delta trike meaning.

@huffdaddy3845 3 месяца назад

@@GolfFoxtrot22 I love your Nine. What a nice aircraft.

@GolfFoxtrot22 3 месяца назад

@@huffdaddy3845 it's no Peabee but the NiNE does sit right between the Peabee and the big machines.

@silentelectrics 3 месяца назад

Trikes, ultralight (generic Part 103), and WSC (weight shift control) for official FAA designation of 2 seaters in general.

@GolfFoxtrot22 3 месяца назад

Thanks Silent Electrics ( some cool videos on your channel), thanks for clarifying.

@scottwilliams4024 3 месяца назад

Thank you for the testing. All 2 strokes are more prone to catastrophic failure due to operating conditions. They run hotter and closer to failure of the metals durring normal business than a typical 4 stroke. I've flown both Rotax 582 and 912 for several years each and the 912 is more robust. Just the nature of the beasts. In microlight, we just can't spare the 4 stroke engine weight penalty for HP.

@GolfFoxtrot22 3 месяца назад

Hi Scott, thank you for your feedback. I agree with you, however I also find from my experience that due to four strokes reliability that people can become complacent so maintenance aspects are neglected resulting in failures. if we look after things they tend to keep working. I suppose I've always over-served my engines.

@FlyingDarkLord 3 месяца назад

Glad to see you are managing to get some time in the air despite this awful relentless rain & wind 😰

@GolfFoxtrot22 3 месяца назад

Oh Geoff, this weather has been horrendous. I'm picking little windows of opportunity to fly.

@alankendal5857 3 месяца назад

Excellent result Giles for a 38HP engine. I guessed 5-6.

@GolfFoxtrot22 3 месяца назад

Hi Alan, I was expecting closer to 8 but it seems to be holding at 6. When I get 5.5 out of my Moster, I'm genuinely impressed.

@helimed01 3 месяца назад

My prediction was 6.5 to 6.75 LPH. You proved 6 LPH. I think on a longer flight, say 2 hours, it would burn a bit more, as obviously the engine would be at 6200 to 6300 rpm for a greater percentage of the flight. Planning for 7 LPH gives a good margin. Except on longer flights in rough conditions where you might burn a bit more. The river cutting through the gorge was quite spectacular. 👍

@GolfFoxtrot22 3 месяца назад

I've got a future video coming up and even with a slightly higher RPM and a longer flight I still managed to achieve 6lph. I would almost suggest that a longer flight would have a reduced burn as there is less faff and fuel burn on the ground.

@paulieb796 3 месяца назад

Nice one. I've got the same plan for the weekend. Be interesting to compare figures.

@NatJB 3 месяца назад

How are the ribs?

@GolfFoxtrot22 3 месяца назад

It certainly would, a foresee a dual flight video.

@helimed01 3 месяца назад

Will be interesting. Giles has very heavy legs. He carry’s more weight than he looks. 😂

@GolfFoxtrot22 3 месяца назад

@@helimed01 haha, you make friends easily.😜

@clearprop 3 месяца назад

Well I surprised myself there - I guessed 6 litres at the start. Just incredible consumption though given the size and speed of the Nine wing. Cheers, Giles - another enjoyable watch. 👍🙂

@GolfFoxtrot22 3 месяца назад

Hi Dan, I hope I didn't distract you too much from work😜. Can we have some good weather soon please.

@clearprop 3 месяца назад

@@GolfFoxtrot22 I'm on early finish today. 😉 This weather is really starting to get on my proverbials now. Due to fly on Saturday but we shall see...

@fredmolloy6197 3 месяца назад

Top video Giles, love the markings on your fuel tank really smart 👍

@GolfFoxtrot22 3 месяца назад

Good old sticky numbers from Amazon.

@fredmolloy6197 3 месяца назад

Love it Giles it’s dead neat, I’m going to copy that if it’s ok mate.

@GolfFoxtrot22 3 месяца назад

@@fredmolloy6197 I'm sure you'll be up soon to sort your tank out.

@kevchilton908 3 месяца назад

An hour of flying that was put to good use, as it's always handy to know how much fuel you're actually burning for real. Smashing vid, Giles 👌🏻👍🏻

@GolfFoxtrot22 3 месяца назад

Hi Kevin, it's like I'm writing the aircraft spec sheet as I go along 😜. The next one is even better, I go a bit further.

@kevchilton908 3 месяца назад

@@GolfFoxtrot22 Looking forward to seeing that, Giles 👍🏻

@peterkelseyferryair2396 3 месяца назад

I guessed 3.5lph before watching this video ;-) but then I have flown a 303 @ 4500rpm. FYI......A delta wing is a wing shaped in the form of a triangle. It is named for its similarity in shape to the Greek uppercase letter delta (Δ).

@GolfFoxtrot22 3 месяца назад

3.5 at 4500 is about right. 6400 level rpm @H.O.T for the NiNE.

@AnthonyVella 3 месяца назад

DELTA WING!!!

@GolfFoxtrot22 3 месяца назад

It seems that the word trike is the proper term.

@markjohns4696 3 месяца назад

I thought about 5 before watching the rest of the vid.

@GolfFoxtrot22 3 месяца назад

Hi Mark, not long now till you get your spinner I hope. I think the bit that throws most is that it's the speed I'm flying at. If you can get a paramotor to cruise at 55mph then see what the fuel burn is, you'd be quite surprised how efficient it actually is. 👍🏻

@edwalker2790 3 месяца назад

Ha! I find it amusing that you scout for engine out fields. It looks like you can land anywhere around there. We're I fly I have to decide which house I might be able to miss.

@GolfFoxtrot22 3 месяца назад

Hi Ed, they look good from the video but at the moment most are saturated and flooded so you'd roll on landing.

@markjohns4696 3 месяца назад

Delta probably comes from the company name of one of the first hanglider manufacturers, Bill Bennett’s Delta Wings.. I guess it stuck a bit like people calling a vacuum cleaner a Hoover.

@GolfFoxtrot22 3 месяца назад

Ahh good point. 😁

@almarcos81 3 месяца назад

Congratulations on the channel, great flying machine. What diameter is your prop? Is that a 160 cm?

@GolfFoxtrot22 3 месяца назад

Thank you and welcome. It's the 150cm prop. It makes a wonderful sound.

@92redferrari 3 месяца назад

Always do emergency landing practice. I had a fuel starvation problem. That's when your engine makes no noise!

@GolfFoxtrot22 3 месяца назад

Frequently practiced, and always looking for fields...it's kind of my job😁💯.

@92redferrari 3 месяца назад

@@GolfFoxtrot22 🙏👍

@flyingkub 3 месяца назад

So the next flight do it for say 1.5 or 0.5 and then from the differance you can work out what your transit fuel burn is and the normal start climb and approch shut down so you and all the details to plan flights (well almost because you should do this a few times at different speeds, hights and temps).

@GolfFoxtrot22 3 месяца назад

Hi Algy, I'm just happy to be in the air for these limited flights at the moment. Yes the more I fly the more detail but so far for short and longer flights the 6lph is holding true. I don't very the speed as in a flexwing without a trimmer we just fly at Hand off trim, I do need to get you in a flexwing 😜, I know you're an ex hangie.

@flyingkub 3 месяца назад

@@GolfFoxtrot22 not just an exhangie but also powered hangie (Mosquito and a couple of flights with Doodle Bug), that said I did soar with the Mosquito so hardly held the same speed for long (and used a pitchy hang point so bar pitch loads were very low).

@stone8597 3 месяца назад

Thanks for the video...very interesting. I'd like to ask a couple of questions and and make a couple of comments: 1) I know when you (we) fly the slower Pee Bee wings there's no real need for an Air Speed Indicator (ASI). Do you feel you need to have one now with the Nine? If you have an ASI, what do you use? 2) I have a Polini 250 with a Fox TL13 wing (I recently ordered a Nine wing so I'm excited) and burn right at 4 liters an hour, run about 5,300 RPM, and cruise about forty. When running at this RPM my EGT can get a bit high. However, at around 6, 000 rpm my EGT is quite low... so that's a good thing. I only burn 100LL. Here in the States it's hard to get good gas...fuel that has a high octane rating, and doesn't have ethanol. When you fly at Sun & Fun...make sure they're using "good" gas. I really don't trust our "pump gas"...I think poor fuel has contributed to a number of engine problems here. Honestly, I don't trust "pump gas" .

@GolfFoxtrot22 3 месяца назад

Hi Stone, I need to get back to my laptop to answer your questions. 1)I'm still flying without an ASI and don't feel there is any need to fit one, it flies very nicely on bar position and feel. 2) It sounds like your mid range slider needle is a little lean, I had the same on my first few flights so dropped the C clip one notch ( One notch seems to equate to 50 degrees C). Thank you for the heads up on the fuel, I'm in the hands of the Owner as I'm not bring my machine over, there is one over there already. I always filter my fuel with a Mr Funnel, worth its weight in gold. Thanks again and I hope you enjoyed the antics. The next NiNE video is going far in one hour ;).

@nsm3 3 месяца назад

That's pretty good Giles. I messed about with my low jet setting at the end of last year (PB/Adam) and was doing 8 l/hr (rough as heck in the cruise) and haven't flown it since October, to see if it's resolved after I fiddled it back a bit?

@GolfFoxtrot22 3 месяца назад

Hi NSM, sounds like it is rich. Try the acceleration test in this video as 8LPH sounds very rich indeed. I hope this helps as you can also do this adjustment on the ground. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nFsSCFGjmr0.htmlsi=cm6ZzePCDCzqbCFu

@nsm3 3 месяца назад

@@GolfFoxtrot22 I was working with that video (excellent), as I'd fitted one of those Skybound adjustment tools to the carb. I suspect that I caught the wheel as I primed the carb pre-flight, which is what knocked it out of adjustment? I have since altered it on the ground, but not yet flown it.

@GolfFoxtrot22 3 месяца назад

@@nsm3 ahh ok. I hope it has worked. Keep me posted

@SimonAmazingClarke 3 месяца назад

Hiya Giles. Very interesting experiment. I suppose one of the things to consider is human performance. The Butt and Bladder, and maybe arms and hands have a limit. I'm guessing that two hours is fine but two and a half is pushing it. And at what less than £10 an hour for fuel.

@GolfFoxtrot22 3 месяца назад

Hi Simon, yes you have a valid point for the human factors, but it will give a to and from duration with the onboard fuel. It will make the £100 burger significantly cheaper ;). I can fit 23 litres in the tank so I foresee some good trips.

@stone8597 3 месяца назад

Back in the day, here in the States, these were called "trikes". However, with the advent of PPG's they are now using trikes as well so it's a bit confusing. When I go to take off here at the local airport I call myself a "flex wing ultralight". Since I'm a true ultralight I don't have an "N" number. Talking to other regular pilots I think the term "flex wing ultralight" best describes what I'm flying and what other pilots in the pattern should be looking for.

@GolfFoxtrot22 3 месяца назад

Hi Stone, many thanks for clarifying. I'm not really sure where I first heard the term delta trike but it must have just stuck in my tiny head.

@stone8597 3 месяца назад

@@GolfFoxtrot22 Giles, you're not wrong..."Delta" is the shape of the wing.ru-vid.com?search_query=delta+wing

@patrickmckowen2999 3 месяца назад

👍👍

@GolfFoxtrot22 3 месяца назад

Is it getting warmer over there?

@patrickmckowen2999 3 месяца назад

@@GolfFoxtrot22 slowly but surely. Usually the airstrip opens mid May

@FLYNRYAN1978 2 месяца назад

They are usually referred to as Trikes in America.

@GolfFoxtrot22 2 месяца назад

It's strange how many terms there are. I was even called the Delta wing over the radio during the display...haha. it was brilliant.

@FLYNRYAN1978 2 месяца назад

@@GolfFoxtrot22 yes most people are confused now because now there are paramotor trikes and fixed wing trikes etc. lol. They are sometimes referred to as ultralights as well. I decided after my first solo a couple days ago that paramotoring isn’t for me. I’ll be sticking with my hang gliding trike .i guess I would have never known unless I tried.

@GolfFoxtrot22 2 месяца назад

@@FLYNRYAN1978 At least you tried. I did my time with paramotors and am quite happy with flexwing flying now. Where did you learn?

@FLYNRYAN1978 2 месяца назад

@@GolfFoxtrot22 Nashville PPG Great Instructors Just wasn’t what I thought it would be

@GolfFoxtrot22 2 месяца назад

@@FLYNRYAN1978 it's a very tactile sport with lots of feel needed.

@alert2478 3 месяца назад

I like rotax best

@GolfFoxtrot22 3 месяца назад

If only they still made the 5 series engines.

@user-bl4ub4ii6k 3 месяца назад

In the last video, flying your Nine without your winglets fitted, how did the handling differ without them and was there a difference in hands off trim speed? Many Thanks Jeff & Sandra

@GolfFoxtrot22 3 месяца назад

Hi Jeff, the winglets had a greater effect on softening the pitch feel. The hands off trim is slightly more rearward with them fitted. The combination of the vents, winglets and speed is just so hard to articulate. This wing just covers the ground so well. Have you picked yours up yours?

@user-bl4ub4ii6k 3 месяца назад

Thanks Giles, I would be interested in the vent differences you experience too. Pick up April sometime. I haven’t gone for the winglets. I’ll have to try all this out when I get back. Looking forward to flying the Nine. How-to on tank markings please. See you at Popham. Jeff

@GolfFoxtrot22 3 месяца назад

@@user-bl4ub4ii6k our annual catch up. I know the NiNE doesn't have reheat but it's close 🤣.

@BrianTurboT 3 месяца назад

Luvly Jubbly ... How does the fuel burn compare to 'other' engines ... Moster et al? ...

@GolfFoxtrot22 3 месяца назад

Hi Brian, my Moster 185 is about 5.5-6lph and that's only 25hp, the 303 is 38ph.

@zeuslamak3651 3 месяца назад

Would ever consider flying with a different engine? Like a mini jet engine instead of a propeller engine. I would love to see how those statistics would compare.

@GolfFoxtrot22 3 месяца назад

I've looked at Jet engines, they would cost more than the price of the machine. The NiNE can be fitted with a Vittorazi Cosmos 300. There aren't any 4 strokes with the right power at the moment.

@NatJB 3 месяца назад

That's me stopping work for 20 minutes.

@gedstokes4832 3 месяца назад

Yet again Giles, great video really enjoyed. 6 litres an hour, a good few miles in the tank.

@GolfFoxtrot22 3 месяца назад

Hi Gerry, it's a really good figure to plan on.

@GolfFoxtrot22 3 месяца назад

@Nat, I'm not stopping you...lol.

@alert2478 3 месяца назад

Rotax 582 👌

@GolfFoxtrot22 3 месяца назад

Unfortunately they don't make the 582 anymore.

@92redferrari 3 месяца назад

Oh dear that was my engine!

@GolfFoxtrot22 3 месяца назад

Rotax stopped all of the 2 stroke engine production. Shame really. I've only ever flown 1 rotax 2 Stroke, a 582 blue top, very smooth.

@reinerressel975 3 месяца назад

I purchased a German build trike with a Englisch Wing , the name was Raven from Southdown Sailwings . The Rotax 582 engine seized after 50h , I relied on the German GUETESIEGEL ! that was completely wrong because 1. The Puls operated fuel pump was not correct installed it must be installed higher than the pulsline from the engine , diaphragm horizontal with the drain hole on the bottom otherwise the Puls side get filled with liquid , pump action gets worse , the EGT ( burning temp.) gets to high , additional the water cooling hoses where much to small !! On take off it hade 105 C ( max temp 85 C ) . After I corrected everything also on my friends trikes , the beloved 582 s runs up to 800 h without any issues !! I know TBO 300 h . Happy and save flying .

@GolfFoxtrot22 3 месяца назад

@@reinerressel975 it's a real shame they don't make the 5 series rotax anymore. Glad you sorted your engine issues.

@DougBowman6 3 месяца назад

USA: Light sport trike, ultralight trike, powered hang glider, trike, weight shift control aircraft, delta wing trike Unfortunately we have many names for the same thing. Trike is the default but as others have said we now have PPG Trikes &motorcycle trikes so I usually use another term depending on the audience. Non-aviation people usually get powered hang glider so they get the right image in their head. Talking to the gov't, weight shift control aircraft, land or sea. As with other words, mainstream definitions change with time. I once wore thongs on my feet, now I wear flip flops and let the females wear the thong. 🤣🤣

@GolfFoxtrot22 3 месяца назад

I'm not sure how to respond to your last few sentences haha!!

@DougBowman6 3 месяца назад

@@GolfFoxtrot22I am here to help 😂

@tomcoryell 3 месяца назад

How high have you flown your flexwing? I hope you haven’t gone crazy high like you did with your paramotor! Also, what is the octane of the petrol you are using? I know it is calculated differently in the UK to the USA. Just wondering.

@GolfFoxtrot22 3 месяца назад

Hi Tom, I've flown my PeaBee to 10,000ft and it was still going strong. I just couldn't legally go any higher without a transponder.

@tomcoryell 3 месяца назад

@@GolfFoxtrot22Wow, you responded quickly! I edited my comment with a question about fuel octane. Man, I wish I could make it too Sun N Fun. Too many projects going on…. Like assembling a trailer!

@GolfFoxtrot22 3 месяца назад

@@tomcoryell hi Tom, we have 95 and 98 octane. I was flying on 95. Keep in touch and I hope you get somewhere with all your projects.

@tomcoryell 3 месяца назад

Ok thanks! From my research that is equivalent to US 91 octane. Polini though recommends 100LL for their US engines. Also, thank you very much for doing this experiment! It gives us some real world numbers on the engine.

@GolfFoxtrot22 3 месяца назад

@@tomcoryell unfortunately unless you live near a GA airfield 100ll is impossible to get hold of.

@DougBowman6 3 месяца назад

What's a leeter? 😜

@GolfFoxtrot22 3 месяца назад

Hi Doug, sending a DM.😜

@DougBowman6 3 месяца назад

@@GolfFoxtrot22 👍😎😂

@solansys 3 месяца назад

this horror engine (polini 330) allmost kill 2 of us in israel ! do not tuch it !!!

@GolfFoxtrot22 3 месяца назад

Did you have an EGT fitted?

@solansys 3 месяца назад

for sure

@GolfFoxtrot22 3 месяца назад

@@solansys what caused yours to fail. How did it almost kill 2 people?

@solansys 3 месяца назад

The first time.. the engine stuttered during the takeoff... the second time I was no longer able to save, the engine went out and I crashed on greenhouses, the trike, total lost@@GolfFoxtrot22

@DougBowman6 3 месяца назад

Delta wing - because it is a triangle See: en.wikipedia.org/wiki/Delta_wing

@GolfFoxtrot22 3 месяца назад

We all like a Wiki definition.