Piloto

For practical purposes these drains valves can not pass trough debris because it will clog and jam the internal mechanism, causing them to continuously leak and stain the area. Just one teaspoon of sand will jam the mechanism. José

Same way It got approved for the Cessna José

Here are Cessna planes applicability of the F391-72 drain valve. https://www.univair.com/miscellaneous/view-all/f391-72-fuel-drain-valve-7-16-inch-20-thread/ Here are Mooney planes applicability for the F391-53S drain valve https://www.univair.com/engine-parts/view-all/f391-53s-flush-drain-valve-7-16-inch-20-thread/ The F391-53S Mooney valve needs a special nutplate mounting plate with small drain channels in contact with the bottom skin. These channels can be easily clog with just PRC -22- flowing into it during a reseal job. Or deteriorating old sealant pieces. Some mechanics try to clear these channels through the drain valve hole on the skin. But in doing so they remove sealant from the nut plates rivets causing fuel stains in the area. I found about this issue back in 1983 when my old M20C engine quit during the takeoff run. At the taxiway I removed the drain valve and water poured which I didn't get when I drained through the valve before because it was draining from the top of the valve stem. . I replaced the valves with F391-72 and filler cap O-rings. Never had the problem again. Best way to remove any debris or sediment is to remove the valve an let it drain. José Your picture shows sealant at the bottom next to the adapter plate. This amount of sealant would have clogged the F391-53S nutplate drain channels. Notice how the F391-72 drain holes are in the clear after sealant application. I replaced the valves with F391-72 and filler cap O-rings. Never had the problem again. Best way to remove any debris or sediment is to remove the valve an let it drain. José

Have you ever thought why all the Cessna and other planes use this valve? Simple: tank debris can not clog the drain valve holes. If the drain holes were at the very bottom the holes in the mounting plate would be clogged and would only drain from the top of the stem, leaving the undrained water to be pick up by the fuel outlet screen. José

Single Cessna 208 Caravans are used for passenger carrying by some airlines to hard to reach remote locations like lakes (amphibian configuration) https://en.wikipedia.org/wiki/Cessna_208_Caravan Back in the 1920s multiengine planes goal was to carry more load not for engine redundancy. José

Supposedly he was ferrying back the plane for maintenance. José

The pilot was from Dominican Republic with a Green card here in the US. The sweater with the epaulets and gold wings are common in many countries to project a high class professional image standard, specially when working with paying passengers or employers. Similar to MDs wearing a white coat and stethoscope when attending patients. Or Top Guns wantbe wearing military style leather jackets and Ray-Ban sunglasses when going flying. Like this one: https://www.aircraftspruce.com/catalog/pspages/sherpajacket.php?recfer=23759 José

Planning on adding one on my M20J with the antenna on the belly. So my wife can keep gossiping with her sister. https://www.wilsonamplifiers.com/weboost-drive-4g-x-cell-phone-signal-booster-kit-470510/ José

Good assessment. Not much a pilot can do in this case. The same happened on the twin Aerostars. José

Obviously this one was not flyable, why? José

Yea but where would you put that lighted Cuban Cigar in your mouth or your Mooney fuel tank? José

What you indicated maybe right but I think the left engine failed just after achieving Vr leaving the C335 without power to accelerate. A difficult situation for the pilot at the end of the runway. Unless the plane has a pair of G-90s it is tough for a piston twin to recover in this situation. José

Just an engineer involved in the B777 fly by wire PFC and RDR-4 Radar design and flight testing (Convair 580). FAA certification experience per FAR Part 23, 25 José

Accident details https://aviation-safety.net/wikibase/wiki.php?id=218856 Apparently the fall of the C335 was simply due to loss of power on left engine. Right engine alone could not sustain flight. So much for engine redundancy. José

You do not need to burn the cables just jam the pulleys. José

Very good video. An engine on fire next to a wing with full fuel can disable aileron controllability. Not to mention the amount of fuel that caused the fire. Twice that of a single. José

The longest TBO for jet engines I heard was 6,000 hrs at the United MRO in SFO. Jet engines not only ingest birds but debris on the runway (pot holes rocks, bolts, plane parts, hail stones) also. This causes fan blade damage that it is expensive and cumbersome to repair. Runway debris ingestion is most common in underdeveloped countries. Most common on low wing mounted engines. https://en.wikipedia.org/wiki/Time_between_overhauls José

Piston single engines do not ingest birds like twin turbo fan jet engines. José

It works good for me!!!

Here are some historical facts: Before Lindberg flight cross the Atlantic on a single two twin engine planes were lost during the attempt. Amelia Earhart was the first solo woman to cross the Atlantic on her single engine Lockheed Vega but disappeared in her twin engine Electra when attempting to land on Howland island. 77 B737 crashes list http://www.airsafe.com/events/models/b737.htm A320 ditch in the Hudson river after takeoff https://en.wikipedia.org/wiki/US_Airways_Flight_1549 New FAA approved bird avoidance device https://www.amazon.com/Gardeneer-Dalen-RHO4-Scarecrow-Rotating/dp/B0000AX52C/ref=pd_lpo_vtph_86_bs_t_1?­_­e­n­c­o­d­i­n­g­=­U­T­F­8­&­a­m­p­&­p­s­c­=­1­&­a­m­p­&­r­e­f­R­I­D­=­N­4­H­A­E­W8GSSH00GXPJQXS It installs on top of the nose like a hood ornament. José

A C130 four engine an a crew of four had the same outcome on takeoff. José https://media.defense.gov/2018/Nov/09/2002061699/-1/-1/0/180502-AMC-MUÑIZ AIR NATIONAL GUARD BASE, PUERTO RICO-WC-C130H-AIB-NARRATIVE REPORT.PDF

I attached with Velcro strips my Samsung 7 to the sun visor on my car and M20J for a HUD effect. Besides the HUD benefit I get quicker WX updates via internet. Using the Garmin Pilot app. Veery useful on the road. Try it, is only $5 on Velcro strips. José

The Federal Aviation Administration said the plane was a Cessna 335, which had just taken off from Fort Lauderdale Executive Airport. The plane was en route to Hilliard, a town in north Florida, the FAA said. https://www.local10.com/news/local/fort-lauderdale/small-plane-crashes-into-warehouse-sparking-fire-in-fort-lauderdale Like other twins on takeoff there is no assurance of overcoming an engine failure on takeoff. Unlike singles the chances of an engine failure on a twin are twice that of single. Not to mention near Vmc on takeoff/climb can impair controllability after engine failure. The C335 is very popular at KFXE for cargo and passengers to the Bahamas. José

Forgot to add a Pilot Relief Tube. It will make your long flights pleasant and less embarrassing, no need to empty p bottles at FBO or nearby grass. José

Just to put it in simple terms a Mooney will not sustain altitude unless the engine develops power. Using the ratio that a HP can lift 30 pounds makes sense on a Mooney since a 200hp engine running at 50% power (100HP) can lift a 3,000 pounds plane. Excess power is used to overcome airframe drag. This power to weight ratio is known since the Wright Brothers 1903 José