Bilsam Ultra Cruiser

The Bilsam Ultra Cruiser is a family of Polish microlight aircraft designed and produced by Bilsam Aviation of Poznań, introduced in the 2000s. The aircraft is supplied as a complete ready-to-fly-aircraft, as a kit and in the form of plans for amateur construction.[1]

Ultra Cruiser
Role Microlight aircraft
National origin Poland
Manufacturer Bilsam Aviation
Unit cost
€9,999 (Ultra Cruiser I, assembled, 2004)

The manufacturer's website is non-functional and has been so since about 2008, so it is not clear if the company is still in business.[2]

Design and development

The Ultra Cruiser was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb) and the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 115 kg (254 lb).[1]

The Ultra Cruiser I features a cantilever high-wing, a single-seat enclosed cockpit under a bubble canopy, fixed tricycle landing gear and a single engine in pusher configuration.[1]

The aircraft is made from composite material. Its 8 m (26.2 ft) span wing has a wing area of 8 m2 (86 sq ft). The standard engines used are the 28 hp (21 kW) Hirth F-33 two-stroke or the Bilsam TNA 650 55 hp (41 kW) Suzuki automotive conversion powerplant.[1]

The aircraft has a typical empty weight of 115 kg (254 lb) and a gross weight of 250 kg (550 lb), giving a useful load of 135 kg (298 lb). With full fuel of 19 litres (4.2 imp gal; 5.0 US gal) the payload for pilot and baggage is 121 kg (267 lb).[1]

Variants
Ultra Cruiser I
Single-seat version[1]
Ultra Cruiser II
Two-seat version[1]

Specifications (Ultra Cruiser I)

Data from Bertrand[1]

General characteristics

  • Crew: one
  • Wingspan: 8 m (26 ft 3 in)
  • Wing area: 8 m2 (86 sq ft)
  • Aspect ratio: 8:1
  • Empty weight: 115 kg (254 lb)
  • Gross weight: 250 kg (551 lb)
  • Fuel capacity: 19 litres (4.2 imp gal; 5.0 US gal)
  • Powerplant: 1 × Bilsam TNA 650 Suzuki air-cooled, four stroke automotive engine, 41 kW (55 hp)

Performance

  • Maximum speed: 150 km/h (93 mph, 81 kn)
  • Cruise speed: 100 km/h (62 mph, 54 kn)
  • Stall speed: 56 km/h (35 mph, 30 kn)
  • Rate of climb: 10 m/s (2,000 ft/min)
  • Wing loading: 31.3 kg/m2 (6.4 lb/sq ft)
gollark: `ssh sinthorions-computer.com cat /proc/cpuinfo`
gollark: That's horrible.#
gollark: processor : 0vendor_id : AuthenticAMDcpu family : 23model : 1model name : AMD Ryzen 3 1200 Quad-Core Processorstepping : 1microcode : 0x800111ccpu MHz : 3410.279cache size : 512 KBphysical id : 0siblings : 4core id : 0cpu cores : 4apicid : 0initial apicid : 0fpu : yesfpu_exception : yescpuid level : 13wp : yesflags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme ssbd sev vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smcabugs : sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypassbogomips : 6989.20TLB size : 2560 4K pagesclflush size : 64cache_alignment : 64address sizes : 43 bits physical, 48 bits virtualpower management: ts ttp tm hwpstate eff_freq_ro [13] [14]
gollark: Look, it even lists the bugs!
gollark: Get a stupid home.

References
  1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 130. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X
  2. Internet Archive (23 April 2015). "Website archives". Retrieved 2 June 2015.
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